2,336 research outputs found
Amanda Galvan Huynh, 44th Annual ODU Literary Festival
No full textAmanda Galvan Huynh is a Mexican American writer and educator from Texas. She is the author of Lotería (Sundress Publications, 2022), Songs of Brujería (Big Lucks, 2019) and co-editor for Of Color: Poets’ Ways of Making: An Anthology of Essays on Transformative Poetics (Operating System, 2019). Her writing has been supported by fellowships and scholarships from MacDowell, Vermont Studio Center, Robert Rauschenberg Foundation, Virginia Center for the Creative Arts, and others. She received a Master of Fine Arts in creative writing from Old Dominion University, and she is a doctoral student in English at the University of Hawai’i at Mānoa
Monographis condorensis Huynh 2020, new species
No full textMonographis condorensis new species Fig. 11–16 Material examined: Type specimens. Adult ♂ holotype (QMS 109020), 2 adult ♂ paratypes (QMS 109021–22), 5 adult ♀ paratypes (QMS 109023–27) from Vietnam, Ba Ria-Vung Tau Province, Con Dao Islands, Con Son Island, leaf litter from So Ray old fruit plantation, 8.691263°N, 106.588949°E, elevation 223 m; on 25th July 2015 (collected by C. Huynh). Diagnosis: Differs from congeners in having dense, long trichomes. Body length over 3.5 mm. Antennomere VI with 24–29 sensilla forming a triangular shape, setiform sensillum located in the anterior position, conical sensillum absent. Labrum asetose smooth, with long slender setae in the anterior margin. Telotarsus with posterior lateral process shorter than half length of the claw, anterior lateral process and lamella process present, anterior setiform process longer than the claw. Description: Colour and trichome patterns dark grey on both sides with contrasting light green medial band on dorsal surface of the body. Body covered with dense, long trichomes. Caudal bundle black-silver (Fig. 11). Holotype male body 3.5 mm; paratypes: males 3.5–3.6 mm, females 3.8–4.5 mm; caudal bundle in both sexes same length (0.9 mm). Head: Each side 8 ommatidia: 4 dorsal, 4 lateral (1 anterior, 2 medial and 1 posterior). Vertex with 2 posterior trichome groups and a large medial gap. Each group with 2 rows: Anterior row curved slightly, on an oblique angle with large trichome sockets in central position, gradually reducing the size at both ends; posterior row with large sockets; a narrow medial space between these rows. Holotype posterior trichome groups with 18 sockets (L) and 19 (R) sockets in anterior rows, posterior rows with 5 sockets both sides (Fig. 12A) (Paratypes showed that variation is common in this species, regardless of sex, ranging from 14–22 sockets in anterior rows, 2–6 in posterior rows). Trichobothria typically thin, sensory hairs with narrow cylindrical funicles; trichobothria equal in socket size forming an isosceles triangle with equal distance ab and bc (Figs.12E and 13A) (trichobothrium a located in posterior position of the head capsule, trichobothrium b in lateral position, trichobothrium c in anterior position). Antennae: Eight antennomeres, 4 sensory cones, typical characteristics of Polyxenidae. Antennomere VI with 24–29 bacilliform sensilla (Figs. 14A, B and C). Holotype with 26 bacilliform sensilla forming a triangular shape (3 thick and 23 thin bacilliform sensilla), setiform sensillum located in anterior position, conical sensillum absent. Antennomere VII with 2 thick bacilliform sensilla (T, Ta and Tp), setiform sensillum (s) located in between these two sensilla (T), conical sensillum (c) located next to Tp (Figs. 15A and B). Clypeo-labrum: Holotype, labrum posterior margin with 10 setae, setae equal in length to labrum width (Setae on the paratypes ranged from 10–11 in both sexes). Labrum surface smooth and asetose, labrum posterior margin has a row of minute backward-pointing setae. Lateral lamella and single broad lamella each side median cleft, 20 slender setae, pair at the base, present on anterior margin of each side of labrum (Fig. 12G) (The number of these anterior slender setae varies among paratypes, ranging from 18–24 on each side. (Fig.13C)). Gnathochilarium: Lateral palp 1.25 times medial palp; 11 conical sensilla on the lateral palp and 22 on the medial palp. Same in holotype and paratypes (Figs. 12F and 13D). Trunk: Body with 10 tergites, 9 pleural projections, and a telson excluding caudal bundle. 13 pairs of legs. Collum (tergite 1) with lateral protuberances 4–6 trichome sockets each side. Other tergites with pair of pleural projections located in anterolateral positions. The tergal trichome socket arrangements typically have 2 broad oval shapes, slightly enlarged in lateral position, with the posterior row straight slightly to the centre, an intermedial gap between these rows (Figs. 12C and 13B). Holotype, collum with 73 sockets each side, lateral protuberance 5 (L) and 4 (R) sockets (Fig.12B) (Paratypes ranged 65–78 sockets in the collum and lateral protuberances 4–6 sockets). Tergite 2 had a similar structural pattern with the posterior row slightly longer and 73 (L) and 71 (R) trichome sockets (Fig.12C), the patterns are similar to characteristic large gaps. Tergite 10 is the exception with these trichome sockets being smaller and denser, a narrow space exists between the lateral rosette trichome sockets and posterior row. Trichome sockets of this tergite are over 100 and the tergite 10 of the holotype was counted 115 (L) and 112 (R) sockets (Fig.12D). Legs: Leg segmentation following Manton (1956). Legs 1 and 2 without trochanter, leg 1 without tarsus 1. Chaetotaxy (setae on leg articles): coxa 1 and 2: 2 setae, coxae 3–13: 2–4 setae; pre-femur, post-femur, tibia with 1 seta, except femur with 1–4 setae, tarsus 1 and 2 with a spine (Fig. 16A). Coxa, pre-femur and femur with biarticulated seta and ridged funicle (Fig.16B). 1–3 smaller biarticulated setae in posterior position of femur, some also on penis (Fig. 16C). Post-femur and tibia distally with setiform seta (Fig. 16D). The spine on tarsus 2 is sharply pointed and twice as long as (Fig.16F) the spine in the antero-sternal position of tarsus 1 (Fig. 16E). There 4 spines in tarsus 1 from the holotype. The posterior edge of the last sternite had 4 setae similar to those present on the coxa and the number of these setae are the same in the holotype and paratypes. Telotarsus-Claw: Claw slender with anterior lateral process and posterior lateral process less than half length of the claw; the anterior setiform process is longer than the claw; lamella process is present (Fig. 16G). Sex organs in the male: A pair of penes on coxae 2 and 2 pairs of coxal glands are located on the 8th–9th coxal plates. Telson: Dorsal ornamental trichome sockets symmetrically arranged on both sides of telson; 25 (L) and 29 (R) sockets of trichomes a on each side of the telson in the holotype (paratypes with 14–29). Trichome a sockets form 2 rows, top row with small sockets, bottom row with larger sockets. Socket of trichome b and 3 large sockets trichomes c with protruding base: c1, c2 and c3, forming triangular shape located in ventroposterior positions in each arrangement. Circular indentation d apparent each side near the exterior side of trichomes c (Fig. 12H). Caudal bundles: Similar to congener (Huynh & Veenstra 2015, 2018c) (Fig. 13E) and is classified as the caudal bundle type I arrangement (Condé & Nguyen Duy-Jacquemin, 2008). Caudal trichomes with a series of 2–6 backward hooks. Remarks: Monographis condorensis n. sp. has a longer body, with dense, long trichomes that are dark grey, which differs from the yellowish-brown colour seen in live specimens of other Monographis species. The number of sensilla (24–29) on the antennomere VI also differs from congeners that have fewer sensilla (12–20 (Nguyen Duy- Jacquemin and Condé, 1967)) forming a triangular shape. A row of the slender setae present on lamellae along the anterior margin of the labrum. Morphological and genetic differences indicate that M. condorensis is a new species. An updated diagnosis of genus Monographis is also required based on the morphology of all described species. The arrangement of the sensilla on antennomere VI divides Monographis into 2 groups: 1) forming a crescent shape and 2) triangular shape (Huynh & Veenstra, 2018c). Monographis condorensis n. sp. belongs to group 2 with sensilla arranged in a triangular shape, which is found in M. dongnaiensis, M. queenslandica, M. tamoyoensis and M. yunnanensis (Huynh & Veenstra, 2015). The differences between M. condorensis n. sp. and other species in the group are the presence of setae on lamellae along the anterior margin of labrum, which is a character absent in the group; a large number of sensilla on antennomere VI (>24 sensilla) and the claw structure (the claw is slender in structure with a shorter posterior lateral process, and the anterior setiform process is longer than the claw). All these characteristics make M. condorensis a distinctively new species in Monographis. Etymology: The name of Monographis condorensis refers to the old name of Con Dao Archipelago as Pulo Condore in southeast Vietnam, where this species was first found.Published as part of Huynh, Cuong, 2020, Three new species of penicillate millipedes from the Con Dao Islands of southeast Vietnam (Diplopoda, Lophoproctidae and Polyxenidae), pp. 1-30 in Zootaxa 4759 (1) on pages 14-18, DOI: 10.11646/zootaxa.4759.1.1, http://zenodo.org/record/373585
Amanda Galvan Huynh, 46th Annual ODU Literary Festival
No full textAmanda Galvan Huynh (she/her) is a Xicana writer and educator from Texas. She is the author of a chapbook, Songs of Brujería (Big Lucks September 2019) and Co-Editor of Of Color: Poets’ Ways of Making: An Anthology of Essays on Transformative Poetics (The Operating System 2019). Her debut poetry collection, Where My Umbilical is Buried, is forthcoming in March 2023 with Sundress Publications. Amanda has been nominated for the Pushcart Prize, Best New Poets, and Sundress Publications’ Best of the Net. She was a 2016 AWP Intro Journal Project Award Winner, 2018 Best of the Net Winner, a finalist for the 2015 Gloria Anzaldúa Poetry Prize, and a finalist for the 2017 Poetry Society of America Chapbook Fellowship. Her poetry can be read in print and online journals such as Hayden’s Ferry Review, Puerto del Sol, The Southampton Review, and others.
Amanda earned her MFA in Poetry at Old Dominion University, BA in English at the University of Texas at Arlington, and BA in Biology at the University of Texas at Dallas. Currently, she is a doctoral student in English at the University of Hawaiʻi at Mānoa
Alloproctoides consonensis Huynh 2020, new species
No full textAlloproctoides consonensis new species Figs 2–8, 9B. Material examined: Type specimens. Adult ♂ holotype (QMS 109011), 5 adult ♀ paratypes (QMS 109015– 109019), 3 adult ♂ paratypes (QMS 109012–109014) from Vietnam, Ba Ria-Vung Tau Province, Con Dao Islands, 8.706281°N, 106.590703°E, elevation 20 m; rainforest leaf litter in Ong Dung Beach, Con Son Island, 26th July 2015 (Collected by C. Huynh). Diagnosis: Adults 1.6–2.2 mm in length. Ommatidia absent. Antennomere VI with conical sensillum located in posterior position, with 2 long thick bacilliform sensilla, and 4 short thin bacilliform sensilla arranged diagonally, not arranged in a transverse row as in Alloproctoides remyi. Gnathochilarial medial palp with 58 sensilla (males), 18 sensilla (females)—not as in A. remyi with 38 (males) and 18 (females). Description: Head light orange, lateral margins dark reddish-brown. Body light orange, with contrasting white pleural trichomes, and lighter coloured caudal bundle (Fig. 2). Holotype male body length 1.7 mm (Paratypes: males 1.6–1.9 mm, females 1.9–2.2 mm). Male caudal trichome bundle narrower in width, bundle slightly longer (0.6 mm) than in female (0.5 mm). Head: Ommatidia absent. Vertex with two posterior trichome groups and a large medial gap. Each trichome group has 2 rows: anterior row, curved slightly, on an oblique angle with larger sized trichome sockets in the middle, and small sockets on both ends; posterior row with 1–2 trichome sockets; a narrow medial space between these 2 rows. Holotype with posterior trichome groups with 15 sockets (Left: L) and 14 sockets (Right: R) in the anterior rows; 2 sockets (L) and 1 socket (R) in the posterior rows (Fig. 3A) (Paratypes with 12–15 sockets in the anterior rows and 1–2 in the posterior rows (Fig. 4A)). Trichobothria: Trichobothrium b, largest socket located closest to the edge of the head capsule in lateral position, trichobothrium a, medium size socket located furthest from the edge of head capsule, trichobothrium c, smallest socket located anterior to sockets a and b. (Figs. 3E, 4C). Antennae: 8 antennomeres, 4 reduced sensory cones, antennomeres VII and VIII equal in length (Figs. 5A, 6A) as is typical of Lophoproctidae. Antennomere VI with 2 long thick bacilliform sensilla (T): Ta located in anterior position, Tp located in posterior position. Conical sensillum (c) of antennomere VI located next to Tp, 4 short thin bacilliform sensilla (st) arranged diagonally located anterior to Ta (Figs. 5C, 6C and 6D). Antennomere VII with 2 long thick bacilliform sensilla: Ta shorter than Tp. Setiform sensillum (s) of antennomere VI located distal and between Ta and Tp, a conical sensillum located in posterior position next to Tp (Fig. 5B) (Two conical sensilla apparent in some non-holotype specimens, Fig. 6B). Clypeo-labrum: with 11 setae (holotype), shorter than labrum width (paratypes with 10–12). Labrum posterior margin setose: 4–6 rows tiny backward facing setae. Thick marginal lamellae located on labrum anterior edge, with 2 linguiform processes in median cleft between lamellae (Figs. 3G, 4D). Gnathochilarium: medial palps with 58 sensilla (paratypes: males with 56–58, females with 18 sensilla) (Figs. 3F, 4E and 4F). Trunk: Body with 10 tergites, 9 pleural projections, and telson excluding caudal bundle. 13 pairs of legs (Fig. 4B). Collum (Tergite 1): Trichome sockets in 2 oval shapes laterally, large medial gap. Lateral protuberances with small number of trichome sockets each side (Fig. 4A). Tergites: Other tergites with pair of pleural projections located anterolaterally. Holotype with 49 (L) and 46 (R) trichome sockets on the collum. Lateral protuberances with 9 (L) and 8 (R) trichome sockets (Fig. 3B) (Paratypes with 46–58 sockets, lateral protuberances with 6–9). Tergites 2–10 have 2 latero-posterior oval groups of trichome sockets with a few sockets extended on both ends and these groups separated by a large medial gap (Fig. 4A). Holotype, tergite 2 with 50 (L) and 47 (R) trichome sockets (Fig. 3C), tergite 10 with 43 (L) and 40 (R) trichome sockets (Fig. 3D) (Paratypes, tergite 2: 54–66 sockets, tergite 10: 34–46). Legs: Leg segmentation following Manton (1956). Legs 1, 2 without trochanter; leg 1 without tarsus 1. Chaetotaxy (setae on leg articles): Holotype; coxa 1: 3 pubescent oval setae, coxa 2: 4, coxae 3–13: 2–5; pre-femur and post-femur: 1 pubescent oval seta; femur: 2 pubescent oval setae, one smaller located in ventromedial position (Figs. 7A, 7B and 7C) (Paratypes, female 3–6 setae on femur (Fig. 8C)); tarsus 2 with spine (Fig. 7D). Holotype, last sternite: 6 pubescent oval setae (Paratypes with 4–6 sockets). Male sex organs: 2 penes on second coxa, coxal glands absent. Telotarsus–Claw: Simple slender structure, claw (c) with two small processes called the laterodorsal denticles (ldd) equal in length and a small spine located in the ventral position of the claw called the basal denticle (bd) (Figs 7E, 8D). Telson: Dorsal ornamental trichome sockets symmetrically arranged on both sides of telson. Holotype with 7 sockets of trichome a (Paratypes with 6–8 trichome a) ; single trichome b, two large protruding basal sockets trichome c: c 1 and c 3 (c 2 absent) (Fig. 3H). Caudal bundles: Male, single caudal bundle, uniform sized sockets carrying caudal trichomes. Female, two caudal bundles: main dorsal structure, similar to male, 2 laterosternal structures with finer nest trichome sockets (Figs 8A and 8B). (These caudal structures are commonly found in Lophoturus species (Lophoproctidae) (Huynh and Veenstra, 2018b) and Monographis species (Huynh and Veenstra, 2018c) and are classified as a caudal bundle Type I by Condé and Nguyen Duy-Jacquemin (2008)). Remarks: Alloproctoides consonensis n. sp. was similar in appearance, to all species in the genus having the same characteristic sensilla morphology on antennomere VI. There is some variation in the arrangement of sensilla when comparing Alloproctoides species, for example, A. consonensis n. sp. is similar to A. remyi in the number and arrangement of short thin bacilliform sensilla on the antennomere VI. However, A. consonensis has 4 or sometimes 5 short thin bacilliform sensilla, with sockets on an acute angle placed parallel in anterior position to the long thick bacilliform sensillum (Fig. 9B). In contrast, A. remyi has 5 short thin bacilliform sensilla, 4 located in similar positions to those of A. consonensis n. sp. and one sensillum located in ventral position, in relation to the long thick bacilliform sensillum (Ta) (Fig. 9C). The number of sensilla on the gnathochilarium can also be used to differentiate between these two species: In males, A. remyi has 38 sensilla (Fig. 9C), A. consonensis n. sp. has 56–58 sensilla (Fig. 9B), and 18 sensilla in females of both species (Figs. 9B and 9C). Alloproctoides consonensis n. sp. and A. dawydoffi have the same arrangement of the sensilla, but these sensilla are positioned on a slightly different angle. The short thin bacilliform sensilla forming a transverse row in A. dawydoffi (Fig. 9A) compared to A. consonensis n. sp., which has a row of sensilla on an acute angle. If based solely on the arrangement of sensilla, Alloproctoides species from Con Dao Islands may have been identified as A. dawydoffi, a species found only on mainland Vietnam. Etymology: The species is named Alloproctoides consonensis n. sp. as they were found on Con Son Island, Con Dao Archipelago, Vietnam. Additional information about the genus Alloproctoides (Lophoproctidae) : The lectotype and paralectotype of Alloproctoides dawydoffi Attems, 1938, collected from Nha Trang, Khanh Hoa Province, Vietnam, were deposited in the National Museum of Natural History (Paris, France) by Nguyen Duy-Jacquemin and Condé (1967). This was the type specimen of Alloproctoides remyi Marquet and Condé, 1950, from Mauritius. These type specimens have not been found in the museum’s collection records. At present, there is only a single slide mounted adult female, with 13 pairs of legs, a handwritten label including ‘24 St. Denis * Alloproctoides simulans ♀ 13 H TYPE’ and a printed label ‘ Alloproctoides dawydoffi (Attems, 1938) M. Nguyen Duy’. This slide has a whole mount of a female with both antennae missing, embedded in Canada balsam. In this current study, which included collecting trips to Mauritius and Vietnam, specimens of A. dawydoffi (collected from Dinh Mountain (Nui Dinh), Ba Ria–Vung Tau Province, Vietnam) and A. remyi (collected from Sir Seewoosagur Ramgoolam Botanical Garden, Pamplemousses District, Mauritius) were plentiful. Many specimens from these two species have been slide mounted, creating a collection of neotypes now deposited in the Queensland Museum along with type specimens of A. consonensis. The purpose of neotypes of A. dawydoffi (QMS 10935 –36 for males, QMS 10937 –38 for females) and A. remyi (QMS 10939 –40 for males, QMS 10941 –42 for females) is to include them in the species records of genus Alloproctoides for future study, along with their genetic information (GenBank accession numbers: A. dawydoffi: MH729070 for 18S and MH737734 for COI; A. remyi: MH729071 for 18S and MH737735 for COI). In the genus Alloproctoides, morphological similarities can make correct species identification a challenge, particularly if using only the number and arrangement of sensilla on antennomere VI to distinguish between them. In the future, species identification will be easier with this new species being designated a species rather than subspecies; the subspecies Alloproctoides dawydoffi sineligulatus needs to be elevated to species level as Alloproctoides sineligulatus.Published as part of Huynh, Cuong, 2020, Three new species of penicillate millipedes from the Con Dao Islands of southeast Vietnam (Diplopoda, Lophoproctidae and Polyxenidae), pp. 1-30 in Zootaxa 4759 (1) on pages 4-10, DOI: 10.11646/zootaxa.4759.1.1, http://zenodo.org/record/373585
Impacts of farmer-based training in seed production in Vietnam
No full textKey words: farmer seed production school, farm-saved seed, formal seed sector, impact assessment, improved practice, local practice, rice (Oryza sativa), seed production, seed quality, Vietnam Rice (Oryza sativa) is the most important food and cash crop of Vietnam. It is cultivated in all provinces of the country since ancient times. Farm-saved seed is the most important seed source covering more than 80% of the farmers’ seed needs. However, farmers not always use the best techniques of producing and selecting seeds. Inadequate seed quality is an important yield limiting factor in rice production. To improve the farmers’ capacity to produce, process, store and use good rice seed, the farmer seed production school (FSPS) training programme was conducted in seven provinces of Vietnam during the period 2003−2007. The study reported in this thesis took place in four out of those seven provinces, i.e. Nam Dinh, Nghe An, Binh Dinh and Dong Thap. The objective was to assess to what extent farmers’ knowledge in seed production practices and seed quality management had increased and whether that knowledge increase was reflected in an increase in potential rice yields and profits, and in diffusion of retained practices after training to other farmers in communities. A long seed production training programme with the farmer field school approach was combined with field demonstrations including plots with either local practices or improved practices which were conducted in each FSPS. We recorded and analysed data on on-farm demonstrations at 429 FSPSs and on ex-ante and ex-post tests of knowledge at the FSPSs. Moreover, we carried out a survey among 240 rural households. Results of the study indicate that some rice varieties were better adopted in the farming systems than other varieties: well adopted ones were KD18 in both Nam Dinh and Nghe An province and OM1490, Ai32 and MO2718 in Binh Dinh and Dong Thap. With local practices in the farm-saved seed system of the transplanted rice crop, farmers used old seedlings, planted many seedlings per hill, planted too many or too few plants per unit area and applied unbalanced quantities of fertilizers; for the directly sown crop farmers used high seed rates in the traditional system. Rice yields showed larger differences between local practices and improved practices in the dry season than in the wet season all across Vietnam. With improved practices at the FSPSs, rice yields were 8.5% higher in the wet season and 13.6% higher in the dry season; additional profits associated with the improved practice in both the dry and wet seasons averaged 212 US$ ha-1. The majority of the FSPS-farmers moved from food production to seed production, reduced seed rates by about 50%, and used high quality seed to produce seeds with much better quality. More important is that the FSPS-farmers diffused improved practices (79%) and shared good seeds (57% of respondents) with other farmers in their communities to help other rice growers to improve their productivity. A large proportion of non-FSPS farmers learned and applied improved practices for rice production through neighbouring FSPS-farmers within the community. Besides, evaluation in acquired knowledge during training showed that FSPS-farmers with lower scores (<20%) in the ex-ante test realized an enormous improvement of 55.4% points in the ex-post test. There was a clear trend: the higher the scores in the ex-ante test, the smaller the increase in the score, suggesting that the tests provided insight into the knowledge gaps for improvement in training programmes. The FSPS is considered as a good training model for farmers. The FSPS-farmers well retained the acquired knowledge and applied the improved practices to enhance the farm-saved seed system in the project provinces. The community capacity was strengthened through establishing seed clubs by FSPS-farmers. It created a seed supply and production network to ensure seed security for small farmer’s seed needs in the rural areas. Thus, it promoted seed policies to strengthen the informal seed system in Vietnam. Impacts of farmer-based training programme in seed production illustrate that in a country like Vietnam where more than seventy percent of the population live in rural areas and depend on agricultural production, farmer education is a very effective way for agricultural development
Monographis tamdaoensis Huynh 2022, new species
No full textMonographis tamdaoensis new species Figures 13–17 Material examined: Holotype, adult male (IEBR-Myr 989) and paratypes: Adult, two males (IEBR-Myr 990) two females (IEBR-Myr 991) and, two subadults with 12 pairs of legs (IEBR-Myr 992) were collected from Tam Dao National Park, 21.458611N, 105.649444E, elevation 1017 m, Vinh Phuc Province, northern Vietnam. All types were deposited in the Institute of Ecology and Biological Resources, Vietnam. Specimens were collected by author CH in the field trip organised by Dr Duc Anh Nguyen, on 17 th July 2017. Diagnosis: Body length 2.4–3.2 mm. Antennal article VI with 16–18 bacilliform sensilla forming crescent shape, setiform sensillum located in anterior position, conical sensillum present near centre of crescent. Labrum asetose, long slender anterior setae in anterior margin. Telotarsus with posterior lateral process shorter than half-length of claw, anterior lateral and lamella processes present, anterior setiform process shorter than half-length of claw. Description: Holotype male body 2.4 mm; paratypes: males 2.2–2.4 mm, females 3.0– 3.2 mm; caudal bundle 0.5 mm, nest trichomes 0.2 mm. Head: Arrangement of post vertex trichomes as for Monographis cattienensis with the holotype having 13 sockets (L) and 14 (R) in anterior rows, posterior rows with 3 sockets on both sides (Figures 13A & 13B). Paratype showed anterior rows with 12–14 sockets, posterior rows with 2–3 sockets (Figure 16A). Clypeo-labrum: Holotype, labrum posterior margin with 8 setae (Se), these setae longer in length than labrum width (paratype with 8–10 setae). Labrum surface asetose (l), labrum posterior margin has a row of minute backward-pointing setae (sb). Lateral lamella (Ll) and single broad lamella each side median cleft (mc), 12–14 slender setae (sa) present on anterior margin of labrum (Figures 13C & 16D). Antennae: Antennal article VI with 16–18 bacilliform sensilla. Holotype with 16 bacilliform sensilla forming a crescent shape with 3 thick (T), 9 thin bacilliform sensilla (t) and 4 medium-length thin bacilliform sensilla (tm), setiform sensillum (S) located in anterior position, conical sensillum (C) present near centre of crescent (Figures 14C, 17B &17C). Telotarsus: Claw slender, posterior lateral process (p) shorter than half-length of claw, anterior lateral (a) and lamella processes (la) present, anterior setiform process (s) less than half-length of claw (c). (Figures 15B & 17D). Telson: Arrangement of dorsal ornamental trichome sockets similar to M. cattienensis with 17 sockets of trichomes a left side and 18 sockets on right side of the telson in the holotype (paratype with 16–18 sockets). (Figure 15C). Remarks: Monographis tamdaoensis sp. n. is distinguished from congeners in its labrum structures and anterior setiform process equal to half-length of claw. Etymology: Monographis tamdaoensis is named after Tam Dao National Park in Vinh Phuc Province, Vietnam.Published as part of Huynh, Cuong, 2022, Four new species of Monographis Attems, 1907 (Diplopoda, Polyxenida, Polyxenidae) from Vietnam, pp. 393-420 in Zootaxa 5214 (3) on pages 407-409, DOI: 10.11646/zootaxa.5214.3.4, http://zenodo.org/record/738926
Monographis thatsonensis Huynh 2022, new species
No full textMonographis thatsonensis new species Figures 2, 18–23 Material examined: Holotype, adult male (IEBR-Myr 993) and paratypes: Adult, two males (IEBR-Myr 994) two females (IEBR-Myr 995) and subadults, three females with 12 pairs of legs (IEBR-Myr 996) were collected from Cam Mountain, 10.496944N, 104.981389E; elevation 662 m, in the Seven Mountain Ranges (That Son), located in Tri Ton and Tinh Bien districts, An Giang Province, Vietnam. All types were deposited in the Institute of Ecology and Biological Resources, Vietnam. Specimens were collected by author CH on 8 th July 2017. Diagnosis: Body length 2.0–3.0 mm. Antennal article VI with 15–16 bacilliform sensilla forming crescent shape, setiform sensillum located in anterior position, conical sensillum present near centre of crescent. Labrum asetose, long slender anterior setae on anterior margin. Telotarsus with anterior and posterior lateral processes equal in length and shorter than half-length of claw, lamella processes present, anterior setiform process longer than claw. Description: Holotype male body 2.0 mm; paratypes: males 2.0– 2.2 mm, females 2.4–3.0 mm; caudal bundle 0.5 mm, nest trichomes 0.2 mm. Head: Arrangement of post vertex trichomes as for Monographis cattienensis with the holotype having 12 sockets on both sides in anterior rows, posterior rows with 4 sockets (L) and 3 sockets (R) (Figures 18A & 18B, 22A). Paratype showed anterior rows with 12–16 sockets, posterior rows with 3–4, these setae shorter in length than labrum width (Paratype with 8–10 setae). Clypeo-labrum: Holotype, labrum surface asetose (l), labrum posterior margin has a row of minute backward-pointing setae (sb). Lateral lamella (Ll) and single broad lamella each side median cleft (mc), 12 (L) and 8 (R) slender setae (sa) present on anterior margin of labrum (Figures 18C & 22C & 22D). Antennae: Antennal article VI with 15–16 bacilliform sensilla. Holotype with 15 bacilliform sensilla forming a crescent shape with 3 thick (T), 3 thin bacilliform sensilla (t), 3 medium-length thin bacilliform sensilla (tm), and 6 short thin bacilliform sensilla (ts), setiform sensillum (S) located in anterior position, conical sensillum (C) present near centre of crescent (Figures 19C, 21B & 21D). Telotarsus: Claw slender, anterior (a) and posterior lateral (p) processes equal in length and shorter than halflength of claw (c), lamella processes (la) present, anterior setiform process (s) longer than claw (Figures 20B & 23D). Telson: Arrangement of dorsal ornamental trichome sockets similar to M. cattienensis with 14 trichome sockets a left side and 15 sockets on right side of the telson in the holotype (paratype with 14–18 sockets). (Figures 20C, 23A & 23B). Remarks: Monographis thatsonensis sp. n. showed a distinctive pattern of sensilla on antennal article VI, labrum structures, anterior and posterior lateral processes equal in length and shorter than half-length of claw, anterior setiform process longer than claw. Etymology: Monographis thatsonensis is named after the Seven Mountain Ranges, derived from Sino-Vietnamese, meaning: That Son, in An Giang Province, Vietnam.Published as part of Huynh, Cuong, 2022, Four new species of Monographis Attems, 1907 (Diplopoda, Polyxenida, Polyxenidae) from Vietnam, pp. 393-420 in Zootaxa 5214 (3) on pages 411-413, DOI: 10.11646/zootaxa.5214.3.4, http://zenodo.org/record/738926
First record of Cytaea (C. oreophila) from Vietnam
No full textTam, Truong Van, Phu, Huynh Long, Quy, Nguyen Nhat (2023): First record of Cytaea (C. oreophila) from Vietnam. Peckhamia 301 (1): 1-3, DOI: http://doi.org/10.5281/zenodo.810996
Unixenus moniqueae Huynh 2020, new species
No full textUnixenus moniqueae new species Fig. 17–21 Material examined: Type specimens. Adult ♂ holotype (QMS 109028),; 6 adult ♀ paratypes (QMS 109029–34) from Vietnam, Con Dao archipelago, Con Son Island, Lo Voi beach, leaf litter in casuarina woodland, 8.691097°N, 106.620542°E, elevation 9 m; on 24th July 2015 (Collected by C. Huynh). Diagnosis. Shares similar characteristics with U. mjoebergi and U. intragramineus: chaetotaxy (setae on leg articles) with one seta on pre-femur and two setae on femur, single seta on tibia and tarsus 2. Claw more similar to U. intragramineus in being slender, differs from U. mjoebergi. A posterior process shorter than half length of the claw in U. moniqueae compared to U. intragramineus with a posterior process longer than half length of the claw. Description: Colour dark brown patch in eye area, same colour as transverse band in vertex. Body milky white, light brown pleural trichomes and darker colour in caudal bundle; dark brown marks on lateroposterior rosette trichomes form a dark band along each lateral side of body. Last tergite darkest in colour; white ventrally (Fig. 17). Holotype, body length 2.2 mm; paratypes 2.2–2.4 mm. Male caudal bundle slightly narrower in width and longer (0.6 mm) compared to female (0.5 mm). Head: Each side with 8 ommatidia: 4 dorsal, 4 lateral (1 anterior, 2 medial and 1 posterior). Vertex with 2 posterior trichome groups with a large medial gap, each group with 2 rows. Anterior row curved slightly on an oblique angle, all trichome sockets of similar size, posterior row with varied trichome socket sizes. A narrow space between anterior and posterior rows. Holotype with vertex posterior trichome groups with 14+12 sockets in anterior rows and 8+6 sockets in posterior rows (Fig. 18A) (Variations are common in paratypes regardless of sex, from 12–18 sockets (anterior rows) and 6–10 (posterior rows)) (Fig. 19A). Trichobothria: trichobothrium a (posterior position), trichobothrium b (lateral position) and trichobothrium c (anterior position) typically thin sensory hairs with narrow cylindrical funicles. Trichobothria (a, b and c) equal in socket size, forming an isosceles triangle with equal distance between ab and bc (Figs 18F and 19C). Antennae: 8 antennomeres, 4 sensory cones (Fig. 20A), typical characteristics of Polyxenidae. Antennomere VI with 3 thick bacilliform sensilla (T), different lengths: A short bacilliform sensillum located in the anterior position (Ta), the longest intermediate long bacilliform sensillum (Ti), and a bacilliform sensillum of (Tp) medium length in posterior position. A setiform sensillum (s) between Ta and Ti and conical sensillum (c) in next to Tp. Antennomere VII with 2 thick bacilliform sensilla, Ta slightly longer than Tp; a setiform sensillum (s) between them and a conical sensillum (c) located next to Tp (Fig. 20B). (This pattern of sensilla on the antennomere VII is commonly seen in all Unixenus species). Clypeolabrum: Holotype with 10 setae along labrum posterior margin, these setae being half the width of labrum (setae in paratypes ranging from 10–13 in both sexes). Labral surface with spherical papillae with pointed ends, forming 3 rows of large size setae in anterior margin and reducing in size in posterior margin. Anterior margin of labrum with 4+4 lamellae on each side of median cleft (Figs.18G and 19B, D). Gnathochilarium: Lateral palp 2.5 times as long as medial palp. 13 conical sensilla on lateral palp, medial palp with 22, same in holotype and paratypes (Fig. 18H). Trunk: 10 tergites, 9 pleural projections, and telson excluding caudal bundle.13 pairs of legs. Collum (tergite 1) with trichome sockets arranged in 2 oval shapes in lateral position, opposite each other connected by a posterior row of trichome sockets forming a line with a gap in the middle. Holotype collum with 49 trichome sockets both sides, lateral protuberances with 5 trichome sockets on each side (Fig.18B) (Trichome sockets on collum varying in paratypes ranging from 54–60 sockets and 4–5 sockets on lateral protuberances). Tergites 2–10, each with pleural projections located in anterolateral positions. Tergal trichome socket arrangements from tergites 2–9 typically with 4 undefined rows of tergal trichomes arranged in two lateroposterior clusters, on either side of midline. Anterior row often uneven, intermediate rows rarely in defined rows and posterior row of trichomes continuous and evenly distributed, forming a line with a medial gap (Fig. 19A). Tergite 10 is the exception, with trichome sockets being smaller and denser. Almost no space between lateral rosette trichome sockets and those in posterior row. Trichome sockets of tergite 2 in holotype with 55 on both sides (Fig. 18C). Tergite 10 with 53 (L) and 54 (R) sockets (Fig. 18D) (In contrast, trichome sockets on tergite 2 in paratypes 50–65, whereas tergite 10 containing between 54–68 trichome sockets). Legs: Leg segmentation following Manton (1956). Legs 1 and 2 without trochanter, leg 1 lacking tarsus 1. Chaetotaxy (setae on leg articles): coxa 1: 1 seta, coxa 2: 2 setae, coxae 3–13: 2–6 setae; pre-femur, tibia and tarsus 2 with seta; femur with 2 setae (Fig. 21A). Setae on coxa, pre-femur, femur distally with with longitudinal ridges on basal funicle; each ridge extending distally into long thin spine, spines surrounding flagellum base (Fig. 21B). Seta in mid femur similar, but smaller (Fig. 21C), tibia and tarsus 2 each with setiform seta (Figs. 21D and E). Posterior edge of last sternite with 4 setae similar those present on coxa (Number of these setae same in paratypes). Sex organs in male: pair of penes present on coxa 2, 2 pairs of coxal glands on coxal plates of legs 8th and 9th. Telotarsus-Claw: A slender structure bearing a posterior lateral process that is shorter by half the length of claw. A small anterior lateral process and a lamella process both present, anterior setiform process slightly enlarged at base and longer than the claw (Fig. 21F). Telson: Dorsal ornamental trichome sockets arranged symmetrically on both side of telson with 5 trichomes a sockets in holotype (Paratypes with 5–6 trichomes a). A single trichome b socket and 3 trichome c with large protruding base sockets: c 1, c 2 and c 3, forming a triangular shape each side of telson. Circular indentation d apparent near exterior side of trichomes c (Fig. 18E). Caudal bundles: Male, caudal bundle with a single uniform large trichome socket of caudal trichomes. Female with two obvious distinguishing structures: a main dorsal structure similar to male, but with 2 latero-sternal bundles of smaller trichome sockets of nest trichomes (Figs. 19E, F). Caudal trichomes 2–4 hooks. (These caudal structures are like those observed in U. intragramineus (Huynh and Veenstra 2018c) which is common to members of the genus Unixenus and is classified as caudal bundle type I (Condé and Nguyen Duy-Jacquemin 2008)) Remarks: Unixenus moniqueae n. sp. was first identified as Unixenus sp. by Monique Nguyen Duy-Jacquemin and Condé (1967) based on two adult specimens (a male and a female), which were collected from Con Son Island, Vietnam. These specimens were part of the Indochinese collections of Dr C. Dawydoff (Attems 1938). Formal naming of these specimens was deferred because of uncertainty around the specific diagnosis of Unixenus at that time, despite this species having similar characteristics to U. mjoebergi and other evidence that supported them belonging to the same genus (Nguyen Duy-Jacquemin and Condé, 1967). The identification of Unixenus to species proved difficult due to similarities in the morphology of the main characteristics used for identification: the sensilla on antennomere VI, pointed spherical papillae of the labrum, 13 sensilla on the lateral palp of gnathochilarium, the arrangement of the tergal trichome sockets, chaetotaxy and the setiform sensillum on tarsus 2. Etymology: The species is named in honour of Dr. Monique Nguyen Duy-Jacquemin who made a significant contribution to the study of penicillate millipedes since the 1960s. She was the first to identify this species collected from Con Son Island, Con Dao Islands in 1967 as Unixenus sp.Published as part of Huynh, Cuong, 2020, Three new species of penicillate millipedes from the Con Dao Islands of southeast Vietnam (Diplopoda, Lophoproctidae and Polyxenidae), pp. 1-30 in Zootaxa 4759 (1) on pages 21-23, DOI: 10.11646/zootaxa.4759.1.1, http://zenodo.org/record/373585
Monographis konkakinhensis Huynh 2022, new species
No full textMonographis konkakinhensis new species Figures 8–12 Material examined: Holotype, adult female (IEBR-Myr 987) and a paratype adult female (IEBR-Myr 988) were collected from a hillside near the entrance of Kon ka kinh National Park, 14.180556N, 108.291667E, elevation 890 m, by Dr Duc Anh Nguyen, on 24 th May 2017. All types were deposited in the Institute of Ecology and Biological Resources, Vietnam. Kon ka kinh National Park is in the central highlands, 50 km north-east of Pleiku City, Gia Lai Province, Vietnam. Three adult females preserved in 80% ethanol were sent to authors, two specimens were used for types, and one used for SEM images. Diagnosis: Body length 3.8–4.5 mm. Antennal article VI with 18–19 bacilliform sensilla forming triangular shape, setiform sensillum located in anterior position, conical sensillum present at base of triangle. Labrum asetose, long slender anterior setae in anterior margin. Telotarsus with posterior lateral process equal to half-length of claw, anterior lateral and lamella processes present, anterior setiform process equal half-length of claw. Description: Holotype female body 4.5 mm; paratype: female 4.3 mm; caudal bundle 0.5 mm, nest trichomes 0.2 mm. Head: Arrangement of post vertex trichomes as for Monographis cattienensis with the holotype having 17 sockets (L) and 16 (R) in anterior rows, posterior rows with 3 sockets (L) and 2 sockets (R) (Figures 8A & 8B). Paratype showed anterior rows with 13 sockets (L) and 16 sockets (R), posterior rows with 2 sockets (L) and 3 sockets (R). Clypeo-labrum: Holotype, labrum posterior margin with 10 setae (Se), (Paratype with 10 setae) these setae shorter in length than labrum width. Labrum surface asetose (l), labrum posterior margin has a row of minute backward-pointing setae (sb). Lateral lamella (Ll) and single broad lamella each side median cleft (mc), 18 (L) and 16 (R) slender anterior setae (sa) present on anterior margin of labrum (Figures 8C & 11D). Antennae: Antennal article VI with 18–19 bacilliform sensilla. Holotype with 18 bacilliform sensilla forming a triangular shape with 3 thick (T) and 15 thin bacilliform sensilla (t), setiform sensillum (S) located in anterior position, conical sensillum (C) present at base of triangle (Figures 9C, 11B). Leg chaetotaxy: Holotype with 3 spines on T1 (Figure 10A) but only 1 spine apparent in the SEM (Figure 12C), the appearance of extra spines on T1 occurs in species this genus. Telotarsus: Claw slender, posterior lateral process (p) equal to half-length of claw (c), anterior lateral (a) and lamella processes (la) present, anterior setiform process (s) equal to half-length of claw. (Figures 10B & 12D). Telson: Arrangement of dorsal ornamental trichome sockets similar to M. cattienensis with 25 sockets of trichomes a on each side of the telson in the holotype (paratype with 26 sockets). (Figures 10C & 12B). Remarks: Monographis konkakinhensis sp. n. is distinctive with larger body length and the characteristic arrangement of bacilliform sensilla in triangular shape on the article VI, labrum structures, anterior setiform process shorter than the claw. Etymology: Monographis konkakinhensis is named after Kon Ka Kinh National Park in Gia Lai Province, Vietnam, where this species was collected.Published as part of Huynh, Cuong, 2022, Four new species of Monographis Attems, 1907 (Diplopoda, Polyxenida, Polyxenidae) from Vietnam, pp. 393-420 in Zootaxa 5214 (3) on pages 403-406, DOI: 10.11646/zootaxa.5214.3.4, http://zenodo.org/record/738926
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