3,501 research outputs found
Eumenes congnatus Nguyen, sp. nov.
No full textEumenes congnatus Nguyen, sp. nov. (Figs 7–12) Material examined. Holotype, ♀, “ VIETNAM, Tuyen Quang, Bac Vang Ranger Station, Na Hang Natural Reserve, Na Hang, 22 ° 20 ' 52.6 "N 105 ° 25 ' 49 "E, 10.VI. 2015, LTP Nguyen, DD nguyen & LX Truong [IEBR]. Paratypes: VIETNAM: Ha Giang: 1 ♂, Tung Ba, Vi Xuyen, 3.vii. 2013, TV Nguyen; Bac Kan: 1 ♀, Lang San, Na Ri, 21 0 15 ’N, 106 0 06’E, 270 m, 3-4.viii. 2012, J Kojima, H Nugroho & IED-c; Thai Nguyen: 1 ♂, Xom O, Yen Lac, Phu Luong, 2.vi. 2014, LTP Nguyen; Son La: Lang Son: 1 ♀, Cai Kinh, xi. 2015, LTP Nguyen, DD Nguyen & NT Tran; Son La: 1 ♀, Nam Pam, Muong La, 660 m, 25.vii. 2009, LTP Nguyen, PH Pham & J Kojima; Vinh Phuc: 1 ♂, Tam Dao NP, 21 0 26 ’N, 105 0 37 ’E, 400 m, 20.viii. 2005, J Kojima; Ha Noi: 1 ♂, Suoi Mo, Yen Bai, Ba Vi, 01.vi. 2001, LTP Nguyen Hai Duong: 1 ♀, Hoang Hoa Tham, Chi Linh, 19.viii. 2012, O.T. Nguyen [IEBR]; Lang Son: 3 ♂, Cai Kinh, Huu Lung, 22 ° 39 ' 42.9 "N, 106 ° 15 ' 36 "E, 28 m, 24.xi. 2015, LTP Nguyen, DD Nguyen, NT Tran; Thanh Hoa: 1 ♂, Xuan Lien NR, Hon Can, Van Xuan, Thuong Xuan, 19052 ’ 27.5 ”N, 105014 ’ 20.8 ”E, 106 m, LTP Nguyen; Nguyen; Nghe An: 1 ♀, Pu Mat NP, 26.vii. 2004, LTP Nguyen [VNMN]. Description. Female. Body length 11–12 mm (holotype 11.5 mm); fore wing length 10–11 mm (holotype 10.5 mm). Structure as in Eumenes longus sp. nov., but differs as follows. Head in frontal view slightly wider than high (Fig. 7). Distance between inner eye margins (frontal view) at vertex twice more than at clypeus. Clypeus nearly 1.8 × as highas wide (Fig. 7). Metasomal segment 1 in dorsal view gradually widened from base to apex (Fig. 9), tergum and sternum fused, suture between them distinct almost throughout basal part. T 2 in lateral view as long as wide (Fig. 8). Body with slightly less coarse punctures than in E. longus. Color. Black, with following parts yellow: narrow band along inner eye margin extending from bottom to near ocular sinus, spot between antennal sockets, short line at vertex behind eye, short line at basal margin of dorsal pronotum, apical part of parategula and apical margin of T 1. Legs black. Propodeal valvulae dark brown. Wings dark brown, strongly infuscate, veins dark brown. Male. Body length 10–11 mm; fore wing length 9–10 mm. Structure as in female and male of E. longus but clypeus proportionally longer, in frontal view 2.3 × as long as wide, with sharper teeth (Fig. 10). F 11 propotionaly shorter than in E. longus (Fig. 11). Color as in female. Distribution. Northern Vietnam: Tuyen Quang, Ha Giang, Bac Kan, Thai Nguyen, Son La, Vinh Phuc, Ha Noi, Thanh Hoa, Nghe An. Etymology. The specific name refers to the similarity with its congener E. longus. Remarks. This species is similar to E. longus, but can be easily distinguished from the latter by having T 1 gradually widened from base to apex (gradually widened basally and then parallel in E. longus), T 2 in lateral view as long as wide (1.1 × as long as wide in E. longus), and male clypeus with sharper teeth. This species can be distinguished from two Papuan species by having clypeus nearly 1.8 × as high as wide (less than 1.3 × as high as wide in two Papuan species).Published as part of Nguyen, Lien Thi Phuong, 2016, Two new species of the genus Eumenes Latreille, 1802 (Hymenoptera: Vespidae, Eumeninae) from Vietnam, pp. 583-588 in Zootaxa 4093 (4) on pages 585-587, DOI: 10.11646/zootaxa.4093.4.11, http://zenodo.org/record/27097
The molecular and cellular basis of antigen recognition by CD1a-restricted T cells
No full text© 2022 Catriona Vi Nguyen-RobertsonIn contrast to conventional T cells that recognise peptide antigens presented by MHC molecules, a group of “unconventional” T cells recognise lipid antigens presented by MHC-like CD1 family members, CD1a, CD1b, CD1c and CD1d. Studies suggest that CD1a-restricted T cells comprise a unique subset in human blood that recognise CD1a-lipid complexes and play a unique functional role in skin immunity. While they comprise a decent proportion of T cells compared to CD1d-restricted, natural killer T (NKT) cells, they remain relatively less well-understood.
This thesis describes the phenotypic characterisation of CD1a-restricted T cells in human tissues directly ex vivo. Phenotypic analyses and single cell RNA-sequencing of CD1a-restricted T cells revealed that they are distinct from other CD1-restricted T cells. They did not express typical innate-like markers such as CD161, IL-18R, and PLZF, which are expressed by NKT cells, distinguishing them as a unique population of unconventional T cells.
This thesis also elucidates how T cell receptors (TCRs) interact with CD1a-lipid complexes. Profiling the TCR repertoire of CD1a-restricted T cells, demonstrated that while diverse, there is a bias towards TCR variable genes that endow optimal TCR configurations to interact with CD1a and lipid antigens. Experiments with CD1a mutant cell lines revealed that individual TCRs bind at various sites across the entire binding cleft of CD1a, which likely increases the diversity of lipid antigens that can be recognised by CD1a-restricted T cells. Indeed, these T cells were observed to recognise numerous lipid antigens including self-lipids and dideoxymycobactin (DDM), a lipid antigen derived from Mycobacterium tuberculosis, with some CD1a-restricted TCRs even displaying cross-reactivity to lipids with distinct chemical structures.
Reagents were developed as tools to study lipid-reactive T cells in macaques, especially for non-human primate models of disease. A suite of CD1 tetramers were generated to isolate CD1-restricted T cells in pig-tailed macaques and for preliminary enumeration and phenotypic analysis of CD1-restricted T cell subsets in macaque tissues.
Lastly, tetramers were used to investigate CD1a-restricted T cells in human skin. Populations of lipid-reactive T cells and gd-T cells were isolated for phenotypic analysis and TCR sequencing, thus demonstrating that they may play a role in healthy skin. C12-15 alkyl-benzoate, a common oil in dermatological products, was identified as a novel CD1a antigen, suggesting a role for CD1a-restricted T cells in allergic dermatitis.
These studies provide insight into the functional properties of CD1a-restricted T cells and their molecular interactions with CD1a-lipids. Collectively, they represent a step forward in characterising CD1a-restricted T cells and provide a greater understanding of their role in the immune system
Metaphire mangophiloides Nguyen & Trinh & Le & Nguyen 2015, new species
No full textMetaphire mangophiloides Nguyen & Le, new species (Fig. 3, Table 3) Examined material. Holotype: 1C (CTU.EW082–h01) Acacia plantation, Thien Tam community, Vinh Cuu District, Dong Nai Province, Vietnam (11 o 15’54.7” N; 107 o 03’52.7” E), 13 September 2012, coll. Duong Chi Trong. Paratype: 1C (CTU.EW082–p01) same data as for holotype. Diagnosis. Worm medium-size, length 70–74 mm, diameter 5.25–5.31 mm. Number of setae higher in pre-clitellar than post-clitellar region; setae distance aa = 1.2 ab, zz = 1.3 yz. First dorsal pore in 12/13. Multiple spermathecal pores lateroventral in intersegment 5/6. No genital markings in both spermathecal and male regions. Holandric. Intestinal caeca manicate. Septa 8/9/10 absent. Etymology. Named to emphasise its similarity with the species Metaphire mangophila (Nguyen, 2011). Description. External characters: Body cylindrical, medium size; length 70–74 mm, diameter 5.25–5.31 mm, segments 71–78, weight 0.94–1.28 g. Body greyish brown dorsally and paler ventrally. Number of setae higher in pre-clitellar than post-clitellar region, 68–69 in v, 62–70 in viii, 60–63 in xxv, 56–62 in xxx, 17–20 between male porophores in xviii; setae distance aa = 1.2 ab, zz = 1.3 yz. Prostomium 1/3 epilobous. First dorsal pore in 12/13. Clitellum annular, xiv-xvi, smooth, without setae and dorsal pores. Female pore single, mid-ventral in xiv. Spermathecal pores tiny, multiple, lateroventral in intersegments 5/6. Male pores deeply located inside copulatory pouches in xviii; ventral distance between male porophores about 0.3× body circumference. Copulatory pouches having small, O-shaped openings. No genital markings in both spermathecal and male regions. Internal characters: Septa 5/6/7/8 thickened, 8/9/10 absent. Oesophageal gizzard within viii–x. Intestinal origin at xv; caeca manicate, within xxvii–xxv. Last hearts in xiii. Pharyngeal micronephridia in 5/6/7. Lymph glands absent. Typhlosole simple, lamelliform. Fifteen spermathecae in intrasegmental 5/6: 6–8 on the left side and 7–9 on the right side. Ampulla opalescent, subcylindrical, but slightly enlarged distally; duct extremely short, about 1/10 of ampulla length. Diverticula waved and short, about 1/3 ampulla, attached directly to ampulla duct. Accessory glands absent in spermathecal region. Holandric. Testis sacs not separated. Seminal vesicles well developed within xi–xii, opalescent. Oviduct on septum 12/13 ventrally; a pair of small ovaries in xiii. Prostate glands large, racemose, paired in xvii–xx; prostatic ducts U-shaped. Accessory glands absent. Habitat and ecology. The new species was found in Acacia tree plantation in Thien Tam commune, Vinh Cuu District, Dong Nai Province. All specimens were collected from soil surface, just under leaf litter at the end of the rainy season. Remarks. This new species is fairly similar to M. mangophila (Nguyen, 2011) and M. bitheca (Kobayashi, 1936) in the following characters: genital makings absent in both spermathecal and male regions, intestinal caeca manicate. However, M. mangophiloides has multiple spermathecal pores in intersegment 5/6, pharyngeal micronephridia not water-drop shaped, ampulla duct extremely short (1/10 ampulla length) whereas M. mangophila (Nguyen, 2011) has two pairs of spermathecal pores in 5/6/7, two spermathecae in each thecal segment, pharyngeal micronephridia water-drop shaped, ampulla duct relatively long (=1/3 ampulla length). M. bitheca is distinguished from new species by two grouped pairs of spermathecal pores on anterior vi and vii with each group consisting of 2+2 pores, large, oval, disc-shaped male porophores, and short, cylindrical spermathecal diverticula (Kobayashi, 1936).Published as part of Nguyen, Tung. T., Trinh, Binh K. T., Le, Nhan V. & Nguyen, Anh D., 2015, On the polythecate earthworms of the genus Metaphire (Oligochaeta: Megascolecidae) from Vietnam, with descriptions of three new species, pp. 461-470 in Raffles Bulletin of Zoology 63 on pages 467-469, DOI: 10.5281/zenodo.538580
Amynthas exiguus subsp. chomontis
No full textAmynthas exiguus chomontis (Thai & Samphon, 1988) Pheretima exigua chomontis Thai & Samphon, 1988: 18; Samphon 1990: 81; Nguyen 1994: 49; Thai 2000a: 308; Huynh & Nguyen 2004a: 115; Pham 2010: 63. Amynthas exiguus chomontis— Blakemore 2007a: 34; Blakemore 2008b. Type locality. Laos (Se Pon). Type material. SORC, Vietnam. Records from Vietnam. Hanoi (Ba Vi NP); Thua Thien Hue (Huong Thuy; Phu Loc); Da Nang (Ba Na NP) (Nguyen 1994; Huynh & Nguyen 2004a; Pham 2010). Distribution. Vietnam; Laos (Samphon, 1990). Vietnamese name. Giun nhỏ núi cho. Remarks. Blakemore (2007a) considered it as " species inquirenda; further examination was not possible because all previously collected material has been lost.Published as part of Nguyen, Tung T., Nguyen, Anh D., Tran, Binh T. T. & Blakemore, Robert J., 2016, A comprehensive checklist of earthworm species and subspecies from Vietnam (Annelida: Clitellata: Oligochaeta: Almidae, Eudrilidae, Glossoscolecidae, Lumbricidae, Megascolecidae, Moniligastridae, Ocnerodrilidae, Octochaetidae), pp. 1-92 in Zootaxa 4140 (1) on page 28, DOI: 10.11646/zootaxa.4140.1.1, http://zenodo.org/record/25650
Amynthas manicatus subsp. manicatus Gates 1931
No full textAmynthas manicatus manicatus (Gates, 1931) Pheretima manicata Gates, 1931: 414; Gates 1939: 97; 1972: 201; Samphon 1990: 92; Huynh & Nguyen 2004a: 116; Huynh et al. 2005: 180. Amynthas manicatus manicatus— Sims & Easton 1972: 235, 244; Blakemore 2007a: 62. Type locality. Myanmar. Type material. Unknown. Records from Vietnam. Phu Tho (Xuan Son NP); Hanoi (Ba Vi NP) (Huynh & Nguyen 2004a; Huynh et al. 2005). Distribution. Vietnam; Laos; Thailand; Myanmar (Gates 1931, 1939, 1972; Samphon 1990). Remarks. The species was only listed in Huynh & Nguyen (2004a) and Huynh et al. (2005). Further examination was not possible because all previously collected material has been lost.Published as part of Nguyen, Tung T., Nguyen, Anh D., Tran, Binh T. T. & Blakemore, Robert J., 2016, A comprehensive checklist of earthworm species and subspecies from Vietnam (Annelida: Clitellata: Oligochaeta: Almidae, Eudrilidae, Glossoscolecidae, Lumbricidae, Megascolecidae, Moniligastridae, Ocnerodrilidae, Octochaetidae), pp. 1-92 in Zootaxa 4140 (1) on pages 36-37, DOI: 10.11646/zootaxa.4140.1.1, http://zenodo.org/record/25650
Metaphire iranomala Nguyen & Lam & Nguyen 2021, sp. nov.
No full textMetaphire iranomala sp. nov. urn:lsid:zoobank.org:act: 2ECB8639-C770-4828-92D9-055E0778E422 Figs 1–3, Tables 2–3 Pheretima anomala (non Pheretima anomala Michaelsen, 1907) – Thai et al. 2004: 758. – Nguyen 2014: 108. – Nguyen et al. 2017a: 893, fig. 7; 2017b: 98, fig. 3; Nguyen et al. 2019: 120, fig. 3. Metaphire anomala – Nguyen et al. 2016: 50. Diagnosis Medium-sized worm, length 157–228 mm, diameter 6.5–8.0 mm, segments 85–145. Prostomium epilobous. Clitellum annular, within xiv–xvi. First dorsal pore in 12/13. Four pairs of spermathecal pores on ventrolateral intersegments 5/6/7/8/9. Male pores on the setal ring of segment xix; copulatory pouches present. Genital markings absent. Holandric. Testis sacs connected. Intestinal caeca simple. Septa 8/9/10 absent. Etymology The epithet ‘ iranomala ’ is formed by the prefix ‘ ir ’ and ‘ anomala ’ to emphasise the wrong name ‘ anomala ’ recorded in Vietnam. Material examined Holotype VIETNAM • mature spec.; Ba Ria-Vung Tau Province, Con Dao National Park; 8°42′12″N; 106°35′41″ E; 120 m a.s.l.; 19 Oct. 2019; Nguyen Thanh Tung and Nguyen Thi Bao Ngoc leg.; natural forest; CTU-EW.020.h01. Paratypes VIETNAM • 9 matures; same collection data as for holotype; CTU-EW.020.p02. Other material VIETNAM – Ba Ria-Vung Tau Province • 16 matures; same collection data as for holotype; CTU-EW.020.03 • 10 matures; Con Son Island; 8°41′59″ N, 106°36′54″ E; 10 m a.s.l.; 18 Oct. 2019; Nguyen Thanh Tung and Nguyen Thi Bao Ngoc leg.; residential gardens; CTU-EW.020.04 • 33 matures; Con Son Island; 8°39′53″ N, 106°34′00″ E; 20 m a.s.l.; 19 Oct. 2019; Nguyen Thanh Tung and Nguyen Thi Bao Ngoc leg.; natural forest; CTU-EW.020.05. – Kien Giang Province • 1 mature; Da Dung mountain; 10°25′07″ N, 104°28′46″ E; Nov. 2010; Nguyen Thanh Tung leg.; natural forest; CTU- EW.DNA.020.23 • 49 matures; Lai Son Island; 09°48′01″ N, 104°39′18″ E; Nov. 2013; Trinh Thi Kim Binh leg.; natural forest; CTU-EW.020.11. – An Giang Province • 57 matures; Cam mountain; 10°30′36″ N, 105°00′09″ E; Nov. 2010; Nguyen Thanh Tung leg.; natural forest; CTU-EW.020.12 • 2 matures; Cam mountain; 10°30′36″ N, 105°00′09″ E; Nov. 2010; Nguyen Thanh Tung leg.; natural forest; IEBR-EW.020.22. – Dong Nai Province • 2 matures; Vinh Cuu Nature Reserve; 11°06′46″ N, 107°03′12″ E; Oct. 2019; Nguyen Quoc Nam leg.; natural forest; IEBR-EW.020.18a • 3 matures; Vinh Cuu Nature Reserve; 11°06′46″ N, 107°03′12″ E; Oct. 2019; Nguyen Quoc Nam leg.; natural forest; CTU-EW.DNA.020.18b • 7 matures; Cat Tien National Park; 11°26′05″ N, 107°25′45″ E; Oct. 2013; Le Van Nhan leg.; natural forest; CTU-EW.020.07. – Tay Ninh Province • 1 mature; Duong minh Chau District; 11°22′59″ N, 106°12′00″ E; Sep. 2019; Nguyen Quoc Nam leg.; home garden; IEBR-EW.020.16 • 6 matures; Ba Den mountain; 11°23′26″ N, 106°09′19″ E; Sep. 2019; Nguyen Quoc Nam leg.; mango gardens; CTU-EW.020.17. Description Body cylindrical, large-medium size, length 157–228 mm, diameter 6.5–8.0 mm, segments 85–145, weight 3.0–8.4 gr. Dorsum slightly dark grey, ventrum paler. Prostomium epilobous. First dorsal pore in 12/13. Perichaetine, setae at pre-clitellar segments stouter and sparser than that at post-clitellar segments; setal numbers: 55–62 in viii, 65–71 in xxx, 10–16 between male pores on xix. Setal distance: aa> ab, zz> zy. Clitellum annular, within xiv–xvi, darkish brown, without dorsal pores and setae. Female pore single, mid-ventral in xiv. Four pairs of spermathecal pores on ventrolateral intersegments 5/6/7/8/9. Ventral distance between spermathecal pores ca 0.27–0.3 body circumference. Male pores on copulatory pouches in xix; ventral distance between male pores ca 0.2–0.3 body circumference. Genital markings absent in both spermathecal and male pores region. Septa 5/6/7/8 thickened, 8/9/10 absent, 10/11/12 thin. Oesophageal gizzard between 7/8 and 10/11. Intestine origin at xv; caeca simple, short within xxvii-xxiv. Last hearts in xiii. Pharyngeal micronephridia developed in 5/6/7. Lymph glands absent. Typhlosole simple, lamelliform. Spermathecae paired in vi–ix. Spermathecal ampulla large, mango-shaped; duct about a quarter of ampulla length. Diverticula attached to the base of ampulla ducts; distal part strongly coiled, swollen into coiled sinusoidal seminal chambers. Spermathecal ducts without nephridia. Accessory glands absent in the spermathecal region. Holandric. Testis sacs in x and xi, connected ventrally. Seminal vesicles well developed in xi and xii. Ovaries on septum 12/13 posteriorly. Prostate glands, deeply lobuled, paired in xvii–xxi; prostatic ducts C-shaped. Accessory glands massed, covered the copulatory pouches. DNA barcode COI barcode data (partial) is for the paratypes uploaded to GenBank under the accession numbers MW076191, MW076192, MW076193, MW076194, MW076195, and MW076196. The new species shares the identity of 88.13% and 88.33% with Metaphire anomala (KU262251, KU565252, KU565253, KU565254). Habitat The species was found in leaf-litters or in the top-soil layer, especially in moist places (near streams) or in rocky holes with organic matter. Metaphire iranomala sp. nov. has a soft body, violet light skin when alive. Its moving behavior is similar to a caterpillar locomotion. The species was commonly located in hilly/mountainous areas, but occasionally found in deltas. Variations Metaphire iranomala sp. nov. has two slightly different morphological types. The first type is more likely to be distributed in islands or in coastal provinces in Vietnam; the other type is found in mainland provinces. 1 Freshly collected specimens; 2 Bantaowong et al. (2011); 3 Gates (1925, 1972) and Stephenson (1929); 4 Michaelsen (1907). 1 Goto & Hatai (1899) and Blakemore (2016b); 2 Cognetti (1908). There are not many differences between the two types except the ventral distance between the male pores (0.2–0.22 vs 0.25–0.3). However, the COI genetic distance also distinguishes two types (see below). Remarks The new species has been previously identified as Metaphire anomala. It is widely distributed in Southern Vietnam (Thai et al. 2004; Nguyen 2014; Nguyen et al. 2017a, 2017b, 2019, 2020). However, this species is very different from both the original description (Michaelsen 1907), and re-description of M. anomala from Myanmar (Gates 1925, 1972), Thailand (Bantaowong et al. 2011) in the position of male pores, number and position of spermathecal pores, genital markings in male and spermathecal regions and body size. These differences are summarised in Table 2. A few Metaphire species have been known to exhibit male pores not in segment xviii. Only M. anomala has male pores on xx, whereas two other species, M. isselii Cognetti, 1908 and M. megascolidioides Goto & Hatai, 1899, have male pores on xix. The new species is similar to these two species by having male pores on xix, a first dorsal pore in 12/13 and the absence of genital markings in the spermathecal region. However, the new earthworm species is clearly distinguished by body size, the number and position of spermathecal pores, the morphology of its male region, the status of septum 8/9, and they type of intestinal caeca. The differences are summarised in Table 3.Published as part of Nguyen, Tung T., Lam, Dang H. & Nguyen, Anh D., 2021, Notes on the earthworm species, Metaphire anomala (Michaelsen, 1907) (Clitellata, Megascolecidae) in Southern Vietnam, with descriptions of two new species, pp. 94-111 in European Journal of Taxonomy 746 on pages 98-103, DOI: 10.5852/ejt.2021.746.1321, http://zenodo.org/record/470913
Amynthas mamillaris Chen 1938
No full textAmynthas mamillaris (Chen, 1938) Pheretima mamillaris Chen, 1938: 413, Fig. 15; Le 1995a: 33; Nakamura 1999: 35. Amynthas mamillaris— Sims & Easton 1972: 236, 244; Blakemore 2007a: 62. Type locality. China (Hainan Isl.). Type material. Unknown. Examined material. 8 C (SORC-V.149.01) near stream, Viet Lam, Vi Xuyen, Ha Giang, 5/12/1993, coll. Le Van Trien. Records from Vietnam. Ha Giang (Vi Xuyen) (Le 1995a). Distribution. China (Chen 1938). Vietnamese name. Giun núm vú.Published as part of Nguyen, Tung T., Nguyen, Anh D., Tran, Binh T. T. & Blakemore, Robert J., 2016, A comprehensive checklist of earthworm species and subspecies from Vietnam (Annelida: Clitellata: Oligochaeta: Almidae, Eudrilidae, Glossoscolecidae, Lumbricidae, Megascolecidae, Moniligastridae, Ocnerodrilidae, Octochaetidae), pp. 1-92 in Zootaxa 4140 (1) on page 38, DOI: 10.11646/zootaxa.4140.1.1, http://zenodo.org/record/25650
Coeleumenes flavus Nguyen, sp. nov.
No full textCoeleumenes flavus Nguyen, sp. nov. (Figs 8–13) Material examined. Holotype, ♀ [IEBR], “ VIETNAM, Son La, Phu Yen, Gia Phu, Vo Nguyen Giap forest, 21 ° 13 '07.9"N, 104 ° 32 ' 39.7 "E, 350 m, 18.vi. 2015, Dac Dai Nguyen”. Paratype: VIETNAM: [IEBR]: Kon Tum: 1 ♀, Chu Mom Ray, Sa Son, Sa Thay, 19 ° 47 ’ 24.5 "N, 104 ° 59 ’ 46.5 ”E, ca. 730m, 25.IV. 2016, LTP Nguyen et al. Diagnosis. Female. The new species can be distinguished from all other congeners by the following combination of characteristics: body with well defined medium punctures, border between punctures smooth, not reticulated; T 1 in dorsal view tuberculate laterally at midpoint; T 2 with apical lamella strongly raised; S 1 with weak transverse striate, apical part with some small punctures and without striae; and color pattern. Male. Unknown. Description. Female. Holotype. Body length 13–13.5 mm (holotype: 13 mm); fore wing length 11–11.5 mm (holotype: 11 mm). Structure as in Coeleumenes burmanicus but differs as follows. Head in frontal view slightly wider than its height (Fig. 8). Vertex with deeper depression for cephalic foveae, foveae located inside clearly defined V-shaped edge (Fig. 9). Mesoscutum shorter than its width between tegulae, about 0.9 × as long as wide (Fig. 10). Body with well defined medium punctures, which much weaker than those in C. burmanicus, border between punctures at frons, pronotum, mesoscutum, scutellum and mesepisternum smooth, not reticulated; posterior face of propodeum with punctures well defined, not rugose; median carina running from one third at base of groove to apical margin; T 1 about 2 × as wide as long (Fig. 11); T 2 slightly wider than its length (Fig. 12); S 2 in lateral view less angular (Fig. 13). Color. Black and shining; following parts yellow: clypeus except margins, basal spot on mandible, large spot between antennae which connect to clypeus, thick band along inner eye margin and running to posterior ocelli, thick band at vertex behind eye, frontal part of scape, thick band along pronotal carina at dorsal part of pronotum (narrowly broken medially), two long parallel longitudinal lines in median part and two shorter lines at lateral margins of mesoscutum, two spots at lateral margin of scutellum, two bands on metanotum (occupying almost whole metanotum), apical half of posterior face of propodeum, tegula except black spot in the middle, pretegular carina, band at apical margin of T 1 which extends laterally, thick band at apical margin of T 2 deeply emarginated medially, narrow apical band of T 3 with small incision on each side, rectangle and square apical marks of T 3 –T 4 medially; narrow lateral apical stripe of S 1, and lateral spot at corner of S 2. Legs black, apical half of fore femur, nearly all part of fore tibia, apical spot of middle and hind tibia yellow, apical spot of middle and fore femur reddish-brown. Male. Unknown. Distribution. Vietnam: Son La, Kon Tum. Etymology. The specific name refers to the extensive yellow markings in this species. Remarks. The color pattern of this species is very similar to that of Coeleumenes impavidus (Bingham, 1897), but the morphological characteristics are different as follows: punctures on metasoma sparser and shallower than punctures on head and mesosoma (punctures on metasoma somewhat deeper and denser than punctures on head and mesosoma in C. impavidus) and clypeus with apical margin deeply emarginated (slightly emarginated in C. impavidus); T 1 in dorsal view laterally tuberculate at midpoint (Fig. 11) [straight in C. impavidus according to Giordani Soika (1941)].Published as part of Nguyen, Lien Thi Phuong, 2016, Contribution to the taxonomy of the genus Coeleumenes van der Vecht, 1963 (Hymenoptera: Vespidae: Eumeninae) from Vietnam, with description of a new species, pp. 175-180 in Zootaxa 4121 (2) on page 178, DOI: 10.11646/zootaxa.4121.2.7, http://zenodo.org/record/26556
Amynthas mucrorimus Chen 1946
No full textAmynthas mucrorimus (Chen, 1946) Pheretima mucrorima Chen, 1946: 108, Plate V, Fig. D; Do 1994: 96; Le 1995a: 54; Nakamura 1999: 46; Thai 2000a: 309; Huynh & Nguyen 2004a: 116. Pheretima (Amynthas) mucrorima— Thai 1983: 124. Amynthas mucrorimus— Sims & Easton 1972: 234; Blakemore 2007a: 67; Blakemore 2008b. Type locality. China (Szechuan). Type material. Unknown. Examined material. 1 C and 1 A (SORC-V.152.01) Muong Long, Ky Son, Nghe An, 01/1986, coll. Tran Minh Khoi. Records from Vietnam. Yen Bai (Luc Yen); Ha Giang (Quan Ba); Son La (Moc Chau); Hanoi (Ba Vi NP); Ninh Binh (Cuc Phuong NP); Nghe An (Ky Son) (Do 1994; Le 1995a; Huynh & Nguyen 2004a). Distribution. China (Chen 1946). Remarks. The Vietnamese population is slightly different from the original description in having only two pairs of spermathecal pores in vi and vii.Published as part of Nguyen, Tung T., Nguyen, Anh D., Tran, Binh T. T. & Blakemore, Robert J., 2016, A comprehensive checklist of earthworm species and subspecies from Vietnam (Annelida: Clitellata: Oligochaeta: Almidae, Eudrilidae, Glossoscolecidae, Lumbricidae, Megascolecidae, Moniligastridae, Ocnerodrilidae, Octochaetidae), pp. 1-92 in Zootaxa 4140 (1) on page 39, DOI: 10.11646/zootaxa.4140.1.1, http://zenodo.org/record/25650
Metaphire thaibinhensis
No full textMetaphire thaibinhensis (Thai, 1984) Pheretima thaibinhensis Thai, 1984b: 616, fig. 2B; Tran 1985: 46; Thai & Do 1989: 77; Le 1995a: 42; Thai 2000a: 310; Huynh & Nguyen 2004a: 116. Pheretima (Amynthas) thaibinhensis— Thai 1983: 124. Metaphire thaibinhensis— Blakemore 2007a: 98; Blakemore 2008b. Type locality. Vietnam (Thai Binh). Type material. ZMUM (W.223), Russia. Examined material. 10 A (SORC-V.091.02) river banks of the Red River, Thanh Hoa, Phu Tho, 23/7/1993; 2 C and 1 A (CTU-EW.075.01) along the Red River, Thanh Ba, Phu Tho; 1 C and 2 A (CTU-EW.075.02) Mekong river, Cagino, Cambodia, 27/10/1988, coll. Do Van Nhuong. Records from Vietnam. Vinh Phuc (Thanh Hoa); Phu Tho (Phu Tho town); Ha Giang (Vi Xuyen); Thai Binh; Hanoi (Ba Vi NP); Hai Duong; Hung Yen; Ha Nam; Nam Dinh; Ninh Binh (Thai 1984b; Tran 1985; Le 1995a; Huynh & Nguyen 2004a). Distribution. Cambodia (Thai & Do 1989). Vietnamese name. Giun thái bình. Remarks. Material was re-examined and presence of male copulatory pouches and hence placement of the species in Metaphire is confirmed here.Published as part of Nguyen, Tung T., Nguyen, Anh D., Tran, Binh T. T. & Blakemore, Robert J., 2016, A comprehensive checklist of earthworm species and subspecies from Vietnam (Annelida: Clitellata: Oligochaeta: Almidae, Eudrilidae, Glossoscolecidae, Lumbricidae, Megascolecidae, Moniligastridae, Ocnerodrilidae, Octochaetidae), pp. 1-92 in Zootaxa 4140 (1) on page 67, DOI: 10.11646/zootaxa.4140.1.1, http://zenodo.org/record/25650
- …
