11,451 research outputs found
Oral History of Tiffany Vi Tran
No full textMy narrator is Tiffany Vi Tran, age 30. She was born and raised in Fountain Valley, California to two Vietnamese American refugees. She is the youngest in her family and has spent most of her life in Southern California. For her primary education, even though she was raised Buddhist, she attended a private Catholic school in for the first few grades, and the private Christian school. She completed two years at Orange Coast College in Costa Mesa and later went on to finish her Bachelor's Degree at the University of California, Los Angeles (UCLA). Before completing her final year at UCLA, she took about a year off to move back home to recover from an illness and jaw surgery. Since then she has been battling chronic pain due to nerve damage from dental surgery. In 2012, Tiffany completed her degree and became involved with several Vietnamese American organizations such as Project Motivate and Common Ground. Today, Tiffany is currently taking care of her parents at her home in Fountain Valley.Recorded digitall
Ranatra heoki Tran & Poggi 2019
No full textRanatra heoki Tran & Poggi, 2019 Ranatra heoki Tran & Poggi, 2019: 241–244 (type locality: Sarawak, Borneo). Additional material examined. BRUNEI: 4 males, 1 female (ZRC.6.18837, NHMW), Tutong District, Logon Uluh Boyoh (pool) and Bawang Ulop (stream), coll. Tan H.H., 17 May 1996, THH9633. INDONESIA: Bintan: 1 male (ZRC), Pulau Bintan North, swamp forest at Tanjung Bintan end, east of Pasir Panjang beach, ca. 100–200 m from sea, coll. H.H. Tan, 27 June 1995, THH9529. Diagnosis. Body length: males 25–26, female 29; ratio of siphon length: body length ca. 0.55; siphon index ca. 1.55×; lorum lower clypeus and without nodule dorsally; clypeus with a small conical tubercle anteriorly; ratio of eye width: interocular width ca. 1.0; posterior width of pronotum ca. 1.15× anterior width; pronotal length ca. 1.55× fore coxa length; hemelytra reaching mid-length of abdominal tergum VI; posterior margin of metasternum angularly emarginated, with sublateral grooves; fore femur on flexor side with a median tooth and a median carina, and with one small preapical tooth; hind femur of male, when folded back parallel to body just surpassing mid-length of abdominal sternum VI; in female slightly shorter; paramere: ventral side before apical hook with a small sub-triangular process, apical hook relatively short, tip of hook pointed. Description of female. Colouration similar to males. Body length 29; length of siphon 14.2; width of head 2.47; interocular width 0.76; width of eye 0.83; pronotal length 7.36, anterior pronotal length 5.80; posterior pronotal length 2.85; anterior width of pronotum 2.05; posterior width of pronotum 2.63; lengths of leg segments: fore leg: coxa 4.55, femur 7.82, tibia 3.17, tarsi 0.68; middle leg: femur 10.90, tibia 9.75, tarsi 1.80; hind leg: femur 11.75, tibia 13.65, tarsi 1.96. Hind femur, when folded back parallel to body, just not reaching middle of abdominal sternum VI. Operculum slightly longer than connexivum, surpassing the apex of connexivum by about one-tenth the length of operculum. Respiratory siphon about 1.4× the length of sterna III–V combined. Other characteristics similar to males. Distribution. Borneo: Malaysia: Sarawak (Tran & Poggi, 2019), Brunei (first record). Indonesia: Pulau Bintan (first record).Published as part of Tran, A. D. & Zettel, H., 2021, Taxonomic review of the Ranatra gracilis group sensu Lansbury, 1972 (Nepomorpha: Nepidae), with descriptions of four new species, pp. 45-70 in Raffles Bulletin of Zoology 69 on pages 66-67, DOI: 10.26107/RBZ-2021-0005, http://zenodo.org/record/535167
Kinematic measures for upper limb robot-assisted therapy following stroke and correlations with clinical outcome measures: a review
No full textAim of the study
This review classifies the kinematic measures used to evaluate post-stroke motor impairment following upper limb robot-assisted rehabilitation and investigates their correlations with clinical outcome measures.
Methods
An online literature search was carried out in PubMed, MEDLINE, Scopus and IEEE-Xplore databases. Kinematic parameters mentioned in the studies included were categorized into the International Classification of Functioning, Disability and Health (ICF) domains. The correlations between these parameters and the clinical scales were summarized.
Results
Forty-nine kinematic parameters were identified from 67 articles involving 1750 patients. The most frequently used parameters were: movement speed, movement accuracy, peak speed, number of speed peaks, and movement distance and duration. According to the ICF domains, 44 kinematic parameters were categorized into Body Functions and Structure, 5 into Activities and no parameters were categorized into Participation and Personal and Environmental Factors. Thirteen articles investigated the correlations between kinematic parameters and clinical outcome measures. Some kinematic measures showed a significant correlation coefficient with clinical scores, but most were weak or moderate.
Conclusions
The proposed classification of kinematic measures into ICF domains and their correlations with clinical scales could contribute to identifying the most relevant ones for an integrated assessment of upper limb robot-assisted rehabilitation treatments following stroke. Increasing the assessment frequency by means of kinematic parameters could optimize clinical assessment procedures and enhance the effectiveness of rehabilitation treatments
An upper limb musculoskeletal model including acromioclavicular joint ligaments: preliminary results
No full textTRAN HONG THUAN
No full text학위논문(석사)--아주대학교 일반대학원 :신경과학기술과정,2019. 2I. INTRODUCTION 1
II. MATERIALS AND METHODS 5
A. Generation of mkrn1 mutants and fly strains 5
C. Measurement of developmental speed 7
D. RT-PCR analysis 7
E. Western blot analysis 9
F. Immunostaining 10
III. RESULTS 11
A. Loss of MKRN1 delayed development 11
B. Knockdown of mkrn1 paralogs did not produce developmental delay 18
C. Ecdysone synthesizing enzyme expression was reduced in MKRN1 null larvae. 22
IV. Discussion 29
V. Conclusion 34
VI. References 37MasterCentral mechanism for the coordination of growth and sexual maturation is well conserved among invertebrates and vertebrates. While mutations in the gene encoding makorin RING finger protein 3 (mkrn3) have been reported to associate with central precocious puberty in human, causal relationship has not been elucidated. Here, we examine the role of mkrn1, a Drosophila ortholog of mammalian makorin genes in the regulation of developmental timing. Loss of MKRN1 in the mkrn1exS prolonged 3rd instar stage and delayed pupariation timing resulting in bigger size pupae. MKRN1 was expressed in the prothoracic gland in which steroid hormone ecdysone is produced. In mkrn1exS larvae, phantom, which encodes ecdysone- synthesizing enzyme and E74, which is the downstream target of ecdysone, mRNA levels were reduced. Collectively, these results indicate that MKRN1 functions to fine-tune the developmental timing and sexual maturation via affecting ecdysone synthesis in Drosophila. Moreover, our study supports the notion that malfunction of makorin gene family member, mkrn3 cause the puberty timing dysregulation in mammals
Amynthas hiepcatanus Do & Tran 1994
No full textAmynthas hiepcatanus (Do & Tran, 1994) Pheretima hiepcatana Do & Tran, 1994 (in: Do et al. 1994): 26, fig. 1G; Do 1994: 83; Nakamura 1999: 25; Thai 2000a: 309; Huynh & Nguyen 2004a: 115. Amynthas? hiepcatanus— Blakemore 2007a: 47; Blakemore 2008b. Type locality. Vietnam (Nghe An: Que Phong). Type material. SORC, Vietnam. Examined material. 1 C (SORC-V.055.01) Thong Thu, Que Phong, Nghe An, 21/7/1987. Records from Vietnam. Nghe An (Que Phong); Hanoi (Ba Vi NP) (Do et al. 1994; Huynh & Nguyen 2004a). Distribution. Only known from Vietnam. Vietnamese name. Giun hiệp cát. Remarks. Blakemore (2007a, 2008b) considered it as " species inquirenda ". Material was re-examined and absence of male copulatory pouches and hence placement of the species in Amynthas 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 32, DOI: 10.11646/zootaxa.4140.1.1, http://zenodo.org/record/25650
Metaphire chaubinhensis Do & Tran 1994
No full text<i>Metaphire chaubinhensis</i> (Do & Tran, 1994) <p> <i>Pheretima chaubinhensis</i> Do & Tran, 1994 (in: Do <i>et al.</i> 1994): 24, fig. 1B; Do 1994: 64; Nakamura 1999: 62; Thai 2000a: 308; Huynh & Nguyen 2004a: 115.</p> <p> <i>Metaphire chaubinhensis—</i> Blakemore 2007a: 22; Blakemore 2008b.</p> <p> <b>Type locality.</b> Vietnam (Nghe An: Quy Chau).</p> <p> <b>Type material.</b> SORC, Vietnam.</p> <p> <b>Records from Vietnam. Hanoi</b> (Ba Vi NP); <b>Nghe An</b> (Quy Chau) (Do <i>et al.</i> 1994; Do 1994; Huynh & Nguyen 2004a).</p> <p> <b>Distribution.</b> Only known from Vietnam.</p> <p> <b>Vietnamese name.</b> Giun châu bình.</p> <p> <b>Remarks.</b> Blakemore (2007a, 2008b) considered it as " <i>species inquirenda</i> ", further examination was not possible because all previously collected material has been lost.</p>Published as part of <i>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)</i> on page 53, DOI: 10.11646/zootaxa.4140.1.1, <a href="http://zenodo.org/record/256507">http://zenodo.org/record/256507</a>
Rhyacobates anderseni Tran & Yang 2006
No full text<i>Rhyacobates anderseni</i> Tran & Yang, 2006 <p>Figs 3F, 4E, 5E, 6E, 8E, 23</p> <p> <i>Rhyacobates anderseni</i> Tran & Yang, 2006: 14–16, figs 7–16, 27 (original description).</p> <p> <i>Rhyacobates anderseni</i> – Tran & Nguyen 2016: 513 (with remarks).</p> Diagnosis <p>Body length of females 6.79–7.30, of males 6.00–6.20. Both sexes: mesonotum mainly black with a median brownish-yellow stripe (broader in female, narrower in male); metanotum chiefly blackish, without yellow markings (Figs 3F, 23A). Female: hind margin of metanotum with a pointed median process extending over abdominal tergum I (Fig. 23C–D); pronotum mainly black with a median brownish-yellow spot; posterior margin of abdominal segment VII with four processes, dorsally with a long process terminating each connexivum (Fig. 23F–G), laterally with a pair of pointed processes (Fig. 23F, H), ventrally almost truncate, without median process (Fig. 23H). Male: middle trochanter without spines; middle femur with scattered small spines, not arranged in distinct row (Fig. 23K); length of middle tibia ca 1.8–1.9 times length of hind tibia; proctiger with rounded lobes laterally (Figs 6E, 23L); paramere relatively stout and evenly curved, middle part thickened, distal part tapering towards rounded apex (Figs 8E, 23M).</p> Material examined <p> <b>Type specimens</b></p> <p>See Tran & Yang (2006).</p> <p> <b>Non-type specimens</b></p> <p>CHINA • 5 ♁♁, 3 ♀♀ (apterous); Yunnan Province, Jing-hong City, Cai-yang River; 22°33′4.1″ N, 101°5′14.6″ E; 879 m a.s.l.; 30 Jul. 2016; Zhen Ye leg.; NKUM.</p> <p> VIETNAM • 1 ♁ (apterous), 1 ♁ (macropterous); Hà Tĩnh Province, Vũ Quang National Park, Khe Nam Châm stream, site #1, upstream; 18°17′31.5″ N, 105°21′18.7″ E; 21 Apr. 2022; A.D. Tran <i>et al.</i> leg.; TAD2208; ZVNU • 1 ♀ (macropterous); same collection data as for preceding; NKUM.</p> <p>GPS data of previous records: see Tran & Yang (2006).</p> Supplemental description <p> <b>Apterous female</b></p> <p>MEASUREMENTS. Body length 6.79–7.30, width 2.00–2.60, head width 1.32, interocular width 0.58, eye length (dorsal view) 0.59; relative lengths of antennal segments I–IV: 3:0.86: 1.21: 0.74; pronotum: length 0.73, width 1.47; mesonotum: length 2.36, width 2.54; metanotum: length 0.88, width 1.98; abdomen length (ventral view) 2.88; abdominal sternum VII: length 1.23, width 1.18; abdominal mediotergite I: length 0.15, width 0.96; relative lengths of leg segments (femur:tibia: tarsal segment I:tarsal segment II): fore leg: 3.03: 2.35:1.17:0.83, middle leg: 8.75: 5.35:2.63:0.45, hind leg: 8.85:3.08:0.15: 0.21.</p> <p>COLORATION. Median black spot of head posteriorly bifurcate. Pronotum mainly black with a median brownish-yellow spot. Mesonotum mainly black with a median brownish-yellow stripe. Metanotum chiefly blackish, without yellow markings (Figs 3F, 23A). Connexivum dorsally blackish. Venter of female chiefly blackish with a median yellowish spot (Fig. 23B). Abdominal venter light yellow.</p> <p>ABDOMEN. Hind margin of metanotum produced as a median protuberance over abdominal tergum I (Fig. 23C–D). Abdomen relatively short, nearly straight, moderately curved dorsad posteriorly (Figs 5E, 23E). Connexivum on abdominal segments I–VI dorsally blackish, forming a straight line in dorsal view (Figs 3F, 23A). Abdominal segment VII elongate, nearly as long as three preceding abdominal segments together (Fig. 23E), completely enclosing genital segments (Figs 3F, 23G). Posterior margin of abdominal segment VII with four processes, dorsally with a long, slender process terminating each connexivum (Fig. 23G), laterally with a pair of pointed processes (Fig. 23F, H), ventrally almost truncate, without a median process (Fig. 23H).</p> <p> <b>Apterous male</b></p> <p>MEASUREMENTS. Body length 6.00–6.20, width 1.70–1.90, head width 1.21, interocular width 0.55, eye length (dorsal view) 0.53; relative lengths of antennal segments I–IV: 2.84: 0.89:1.14:0.78; pronotum: length 0.68, width 1.31; mesonotum: length2.13,width 1.85; metanotum:length 0.64, width 1.65;abdomen length (ventral view) 1.94; abdominal sternum VII: length 0.38, width 0.59; abdominal mediotergite I: length 0.19, width 0.68; relative lengths of leg segments (femur:tibia: tarsal segment I:tarsal segment II): fore leg: 3.04: 2.44:0.89:0.54, middle leg: 8.80: 4.86:2.38:0.36, hind leg: 8.75:2.62:0.11: 0.15.</p> <p>C OLORATION. Median black spot of head posteriorly bifurcate. Pronotum mainly black with a median brownish-yellow spot. Mesonotum mainly black with a median brownish-yellow stripe. Metanotum chiefly blackish, without yellow markings (Figs 4E, 23I). Connexivum dorsally blackish. Metasternum anteriorly blackish and posteriorly light yellow (Fig. 23J). Abdominal venter anteriorly blackish and posteriorly light yellow or completely light yellow.</p> <p>LEG. Middle trochanter without spines; middle femur with scattered small spines, not arranged in distinct row (Fig. 23K).</p> <p>GENITALIA. Abdominal segment VIII ventro-laterally impressed. Pygophore large, ovate. Proctiger with rounded lobes laterally (Figs 6E, 23L). Paramere relatively stout and evenly curved, middle part thickened, distal part tapering towards rounded apex (Figs 8E, 23M).</p> Distribution <p>China: Yunnan; Vietnam: Hà Tĩnh (Tran & Yang 2006).</p> Comparative notes <p> <i>Rhyacobates anderseni</i> is distinct from all congeners in having a median process on the posterior margin of the metanotum in the female (Fig. 23D), which is present in three other ptilomerine genera, i.e., <i>Andersenius</i>, <i>Pleciobates</i> and <i>Jucundus</i> Distant, 1910. However, this species matches all other characteristics of <i>Rhyacobates</i> defined by Andersen & Chen (1995), as discussed by Tran & Yang (2006: 16). Future phylogenetic studies using molecular data may help to resolve the taxonomic position of this species.</p>Published as part of <i>Leng, Zhaoqi, Tran, Anh Duc & Ye, Zhen, 2023, Taxonomic review of Rhyacobates Esaki, 1923, with descriptions of three new species (Hemiptera: Heteroptera: Gerridae), pp. 1-73 in European Journal of Taxonomy 893 (1)</i> on pages 34-36, DOI: 10.5852/ejt.2023.893.2285, <a href="http://zenodo.org/record/8385630">http://zenodo.org/record/8385630</a>
Micronecta (Micronecta) vietnamica Tran 2021, sp. nov.
No full textMicronecta (Micronecta) vietnamica sp. nov. urn:lsid:zoobank.org:act: FFBEFA51-B20A-43BC-A91E-7EFA22350817 Figs 5J–L, 12 Diagnosis Body length 1.5–1.8. Pronotum longer than median head length. Dorsum colour pale yellowish. Hemelytron punctate, with large dark markings, sometimes indistinct (Fig. 5J–L). Males: fore femur with two spines on proximal third ventrally, one spine in distal third dorsally, two spines distally, one pair of long setae dorsodistally; fore tibia without spine; palar claw petaloid, apex truncate (Fig. 12A). Median lobe of sternite VII with angular apex and four long setae (Fig. 12C). Free lobe long, parallel sided, mesial angle broadly rounded, lateral angle nearly square with ten long setae (Fig. 12D). Left paramere: shaft broad, flat, proximal part curved, distal part nearly straight, apex rounded; basal lobe tongue-shaped (Fig. 12F). Right paramere: shaft slender and parallel sided proximally, distal third curved, apex narrowly rounded; pars stridens processus with ca 25 ridges (Fig. 12E). Etymology This new species is named after the country of the type locality. Material examined Holotype VIETNAM • ♂; Hanoi, Ba Vi N.P., Khoang Xanh, Tien stream; 95 m a.s.l.; 17 Dec. 2011; Q.H. Ngo and A.D. Tran leg.; TAD1127; ZVNU. Paratypes VIETNAM – Hanoi • 16 ♂♂, 9 ♀♀; same locality data as for holotype; ZVNU • 3 ♂♂, 3 ♀♀; same locality data as for holotype; NHMW • 1 ♀; Ba Vi N.P., Khanh Thuong, Mit stream, forest area; 80 m a.s.l.; 17 Dec. 2011; Q.H. Ngo et al. leg.; TAD1124; ZVNU • 1 ♂, 1 ♀; Ba Vi N.P., Minh Quang, Cai stream; 65 m a.s.l.; 17 Dec. 2011; Q.H Ngo. et al. leg.; TAD1126; ZVNU • 2 ♂♂, 5 ♀♀; Ba Vi N.P., Minh Quang, stream nearby Tan Vien Pagoda; 340 m a.s.l.; 26 Apr. 2012; Q.H. Ngo et al. leg.; TAD1206; ZVNU • 1 ♀; Ba Vi N.P., Minh Quang, Cai stream; 65 m a.s.l.; 26 Apr. 2012; Q.H. Ngo et al. leg.; TAD1207; ZVNU • 3 ♂♂, 3 ♀♀; Ba Vi N.P., Khoang Xanh, Tien stream; 95 m a.s.l.; 27 Apr. 2012; Q.H. Ngo and A.D. Tran leg.; TAD1208; ZRC • 5 ♂♂; Ba Vi N.P., Yen Bai, Mo stream; ca 114 m a.s.l.; 28 Apr. 2012; Q.H Ngo and A.D. Tran leg.; TAD1211; ZVNU. – Lao Cai Prov. • 8 ♂♂, 1 ♀; Sa Pa, Seo Trung Ho stream; 22 Oct. 2012; N.H. Dinh et al. leg.; DNH12.05; ZVNU • 1 ♀; Sa Pa, Nam Sai, Seo Nam Sai stream 1; 24 Oct. 2012; N.H. Dinh et al. leg.; DNH12.09; ZVNU • 1 ♂; Sa Pa, Nam Sai, Seo Nam Sai stream 2; 24 Oct. 2012; N.H. Dinh et al. leg.; DNH12.10; ZVNU • 1 ♂; Sa Pa, Thanh Phu, Nam Cang stream; 26 Oct. 2013; A.D. Tran et al. leg.; TAD1359; ZVNU. – Cao Bang Prov. • 1 ♂; Ha Quang, road 203, Truong Ha commune, stream near Kim Dong tomb; 17 Dec. 2013; A.D. Tran et al. leg.; TAD1371; ZVNU • 6 ♀♀; Phia Oac-Phia Den N.P., road to Quang Thanh commune, Na Leng stream; 29 Oct. 2020; V.V. Nguyen et al. leg.; PO20-06; ZVNU • 1 ♂, 4 ♀♀; Phia Oac-Phia Den N.P., road to Quang Thanh commune, Khue Lan stream; 29 Oct. 2020; V.V. Nguyen et al. leg.; PO20-07; ZVNU. – Lang Son Prov. • 1 ♂, 3 ♀♀; Loc Binh, Mau Son, Khuoi Tang stream, 590 m a.s.l.; 6 Nov. 2020; A.D. Tran et al. leg.; TAD20-34; ZVNU • 12 ♂♂, 9 ♀♀; Loc Binh, Mau Son, Long Dau stream; 300 m a.s.l.; 7 Nov. 2020; A.D. Tran et al. leg.; TAD20-36; ZVNU. – Phu Tho Prov. • 2 ♂♂, 2 ♀♀; Xuan Son N.P., Ban Coi, Coi stream, site 2, near bridge; 7 Jun. 2013; A.D. Tran et al. leg.; TAD1338; ZVNU • 1 ♂, 2 ♀♀; Xuan Son N.P., Kim Thuong, Xoan stream; 28 Aug. 2013; A.D. Tran et al. leg.; TAD1343; ZVNU • 2 ♀♀; Xuan Son N.P., Ban Coi, Coi stream, site 1, water from underground; 29 Aug. 2013; A.D. Tran et al. leg.; TAD1349; ZVNU • 1 ♀; Xuan Son N.P., Ban Coi, Coi stream, site 3, by the road to Tan Son; 29 Aug. 2013; A.D. Tran et al. leg.; TAD1351; ZVNU • 1 ♂, 2 ♀♀; Xuan Son N.P., stream flows through the road, near Lang Village; 21°5.662′ N, 104°56.236′ E; 26 Aug. 2014; T.S. Nguyen leg.; TS1402; ZVNU • 1 ♂, 1 ♀; Xuan Son N.P., stream flows through the road, near Lang Village; 21°5.662′ N, 104°56.236′ E; 21 May 2015; T.S. Nguyen leg.; TS1502; ZVNU • 2 ♂♂, 2 ♀♀; Xuan Son N.P., stream flows through the road, near Lang Village; 21°5.662′ N, 104°56.236′ E; 24 Aug. 2015; T.S. Nguyen leg.; TS8502; ZVNU • 4 ♂♂, 5 ♀♀; Xuan Son N.P., Than stream, site 2; 21°11.257′ N, 104°52.382′ E; 28 Aug. 2014; T.S. Nguyen leg.; TS1415; ZVNU • 3 ♂♂, 1 ♀; Xuan Son N.P., Than stream, site 3; 21°11.393′ N, 104°52.625′ E; 28 Aug. 2014; T.S. Nguyen leg.; TS1416; ZVNU • 1 ♂; Xoan stream, near Lang Village; 21°5.453′ N, 104°56.122′ E; 21 May 2015; T.S. Nguyen leg.; TS1501; ZVNU • 4 ♂♂, 1 ♀; Xuan Son N.P., Xoan stream, near its confluence with Ha Bang stream; 21°5.303′ N, 104°57.559′ E; 22 May 2015; T.S. Nguyen leg.; TS1507; ZVNU • 3 ♀♀; Xuan Son N.P., Xoan stream, near its confluence with Ha Bang stream; 21°5.303′ N, 104°57.559′ E; T.S. Nguyen leg.; 6 May 2016, TS1607; ZVNU • 1 ♂, 8 ♀♀; Xuan Son N.P., Ha Bang stream, Ha Bang village area; 21°04.343′ N, 104°59.182′ E; 25 May 2015; T.S. Nguyen leg.; TS1510; ZVNU • 2 ♂♂; Xuan Son N.P., Lap stream, near Ngoc waterfall; 21°08.311′ N, 104°56.202′ E; 23 May 2015; T.S. Nguyen leg.; TS1511; ZVNU • 2 ♂♂, 1 ♀; Xuan Son N.P., Than stream, site 1, water flowing from the cave; 21°11.096′ N, 104°52.587′ E; 24 May 2015; T.S. Nguyen leg.; TS1514; ZVNU • 4 ♂♂; Xuan Son N.P., Than stream, site 2; 21°11.257′ N, 104°52.382′ E; 24 Aug. 2015; T.S. Nguyen leg.; TS1515; ZVNU • 1 ♂, 3 ♀♀; Xoan stream, near Lang Village; 21°5.453′ N, 104°56.122′ E; 24 Aug. 2015; T.S. Nguyen leg.; TS8501; ZVNU • 3 ♂♂, 1 ♀, Xuan Son N.P., Than stream, site 3; 21°11.393′ N, 104°52.625′ E; 27 Aug. 2015; T.S. Nguyen leg.; TS8516; ZVNU • 2 ♀♀; Xuan Son N.P., Xoan stream, Xoan village area; 21°05.270′ N, 104°57.591′ E; 23 May 2015; T.S. Nguyen leg.; TS1509; ZVNU • 2 ♀♀; Xuan Son N.P., Xoan stream, Xoan village area; 21°05.270′ N, 104°57.591′ E; 26 Aug. 2015; T.S. Nguyen leg.; TS8509; ZVNU • 4 ♂♂, 1 ♀; Xuan Son N.P., Xoan stream, Xoan village area; 21°05.270′ N, 104°57.591′ E; 7 May 2016; T.S. Nguyen leg.; TS1609; ZVNU • 3 ♂♂, 1 ♀; Xuan Son N.P., Coi stream, site 1, by the road to Tan Son; 21°09.204′ N, 104°56.927′ E; 27 Aug. 2015; T.S. Nguyen leg.; TS8517; ZVNU • 2 ♂♂, 2 ♀♀; Xuan Son N.P., Coi stream, site 1, by the road to Tan Son; 21°09.204′ N, 104°56.927′ E; 8 May 2016; T.S. Nguyen leg.; TS1617; ZVNU • 1 ♀; Xuan Son N.P., Coi stream, site 2, near concrete bridge; 21°09.130′ N, 104°56.761′ E; 29 Aug. 2014; T.S. Nguyen leg.; TS1418; ZVNU • 6 ♂♂, 2 ♀♀; Xuan Son N.P., Coi stream, site 2, near concrete bridge; 21°09.130′ N, 104°56.761′ E; 24 May 2015; T.S. Nguyen leg.; TS1518; ZVNU • 3 ♂♂, 7 ♀♀; Xuan Son N.P., Coi stream, site 3, in front of the cave; 21°01.190′ N, 104°56.624′ E; 24 May 2015; T.S. Nguyen leg.; TS1519; ZVNU • 15 ♂♂, 12 ♀♀; Xuan Son N.P., Coi stream, site 3, in front of the cave; 21°01.190′ N, 104°56.624′ E; 8 May 2016; T.S. Nguyen leg.; TS1619; ZVNU • 4 ♂♂, 3 ♀♀; Xuan Son N.P., Tan Ong stream, 2 km from Chin Tang stream; 21°04.201′ N, 104°56.906′ E; 22 May 2015; T.S. Nguyen leg.; TS1504; ZVNU • 2 ♂♂, 2 ♀♀; Xuan Son N.P., Tan Ong stream, 2 km from Chin Tang stream; 21°04.201′ N, 104°56.906′ E; 25 May 2015; T.S. Nguyen leg.; TS8504; ZVNU • 1 ♀; Xuan Son N.P., Tan Ong stream, 4 km from Chin Tang stream; 21°04.288′ N, 104°57.271′ E; 26 Aug. 2014; T.S. Nguyen leg.; TS1405; ZVNU • 2 ♀♀; Xuan Son N.P., Tan Ong stream, 4 km from Chin Tang stream; 21°04.288′ N, 104°57.271′ E; 22 May 2015; T.S. Nguyen leg.; TS1505; ZVNU • 2 ♀♀; Xuan Son N.P., Ha Bang stream, Ha Bang village area; 21°04.343′ N, 104°59.182′ E; 27 Aug. 2014; T.S. Nguyen leg.; TS1410; ZVNU • 1 ♂, 2 ♀♀; Xuan Son N.P., Ha Bang stream, Ha Bang village area; 21°04.343′ N, 104°59.182′ E; 25 May 2015; T.S. Nguyen leg.; TS1510; ZVNU • 1 ♂, 1 ♀; Xuan Son N.P., Ha Bang stream, Ha Bang village area; 21°04.343′ N, 104°59.182′ E; 7 May 2016; T.S. Nguyen leg.; TS1610; ZVNU • 1 ♂; Xuan Son N.P., Chieng stream, near ranger station; 21°06.072′ N, 104°59.433′ E; 27 Aug. 2014; T.S. Nguyen leg.; TS1408; ZVNU • 1 ♂; Xuan Son N.P., Lap stream, near the foot of Ngoc waterfall; 21°08.311′ N, 104°56.202′ E; 27 Aug. 2014; T.S. Nguyen leg.; TS1411; ZVNU • 4 ♀♀; Xuan Son N.P., Lap stream, near the foot of Ngoc waterfall; 21°08.311′ N, 104°56.202′ E; 26 Aug. 2015; T.S. Nguyen leg.; TS8511; ZVNU • 2 ♂♂, 2 ♀♀; Xuan Son N.P., Lap stream, near the foot of Ngoc waterfall; 21°08.311′ N, 104°56.202′ E; 7 May 2016; T.S. Nguyen leg.; TS1611; ZVNU • 2 ♂♂, 2 ♀♀; Xuan Son N.P., Lap stream, the first concrete bridge from Ngoc waterfall; 5 Jun. 2013; A.D. Tran et al. leg.; TAD1332; ZVNU • 2 ♀♀; Xuan Son N.P., Lap stream, the first concrete bridge from Ngoc waterfall; 21°8.398′ N, 104°56.303′ E; 26 Aug. 2015; T.S. Nguyen leg.; TS8512; ZVNU • 17 ♂♂, 14 ♀♀; Xuan Son N.P., Lap stream, the first concrete bridge from Ngoc waterfall; 21°8.398′ N, 104°56.303′ E; 7 May 2016; T.S. Nguyen leg.; TS1612; ZVNU • 3 ♂♂, 11 ♀♀; Xuan Son N.P., Lap stream, the second concrete bridge from Ngoc waterfall; 5 Jun. 2013; A.D. Tran et al. leg.; TAD1333; ZVNU • 13 ♂♂, 18 ♀♀; Xuan Son N.P., Lap stream, the second concrete bridge from Ngoc waterfall; 21°08.322′ N, 104°56.256′ E; 23 May 2015; T.S. Nguyen leg.; TS1513; ZVNU • 14 ♂♂, 22 ♀♀; Xuan Son N.P., Lap stream, the second concrete bridge from Ngoc waterfall; 21°08.322′ N, 104°56.256′ E; 7 May 2016; T.S. Nguyen leg.; TS1613; ZVNU. – Hoa Binh Prov. • 4 ♂♂, 5 ♀♀; Lac Son, Tu Do commune, Mu stream (upstream of Mu waterfall); 27 Aug. 2020; A.D. Tran et al. leg.; TAD20-01; ZVNU. – Thanh Hoa Prov. • 1 ♀; Ben En N.P., Nhu Xuan, Tan Binh, stream 300 m behind Xuan Ly ranger station; 26 Feb. 2013; T.D. Pham leg.; BE1302; ZVNU. – Nghe An Prov. • 1 ♀; Pu Mat N.P., Khe Kem waterfall and stream, site #1; 20 Dec. 2012; Q.H. Ngo leg.; NQH1203; ZVNU • 11 ♂♂, 4 ♀♀; Pu Mat N.P., Khe Kem stream, site #2, ca 300 m downstream from waterfall; 20 Dec. 2012; Q.H. Ngo leg.; NQH1204; ZVNU • 8 ♂♂, 1 ♀; Pu Mat N.P., Khe Kem stream, site #3; 20 Dec. 2012; Q.H. Ngo leg.; NQH1205; ZVNU • 2 ♂♂; Pu Mat N.P., Khe Kem stream, site #4; 20 Dec. 2012; Q.H. Ngo leg.; NQH1206; ZVNU • 5 ♂♂, 2 ♀♀; Con Cuong, Tung Huong Village, Khe Thoi stream; 21 Dec. 2012; Q.H. Ngo leg.; NQH1210; ZVNU • 2 ♀♀; Pu Mat N.P., Khe Kem waterfall and stream, site #1; 18 Apr. 2013; A.D. Tran et al. leg.; TAD1310; ZVNU • 3 ♀♀; Pu Mat N.P., Khe Kem waterfall and stream, site #2, ca 300 m downstream from waterfall; 18 Apr. 2013; A.D. Tran et al. leg.; TAD1311; ZVNU • 1 ♂, 1 ♀; Pu Mat N.P., Khe Kem stream, site #3, near visitor’s hut; 18 Apr. 2013; A.D. Tran et al. leg.; TAD1312; ZVNU • 1 ♂; Pu Mat N.P., Khe Kem stream, site #6; 18 Apr. 2013; A.D. Tran et al. leg.; TAD1315; ZVNU • 1 ♂, 1 ♀; Pu Mat N.P., Kem waterfall and stream; 30 Aug. 2020; A.D. Tran, P.L. Le and T.C. Nguyen leg.; TAD20-06; ZVNU • 2 ♀♀; Pu Mat N.P., Kem stream, site 3, ca 1.5 km from waterfall; 30 Aug. 2020; A.D. Tran et al. leg.; TAD20-08; ZVNU • 1 ♂; Pu Mat N.P., Chat stream, tributary of Choang stream; 1 Sep. 2020; A.D. Tran et al. leg.; TAD20-14; ZVNU • 1 ♂, 2 ♀♀; Pu Mat N.P., Da Mai stream, tributary of Choang stream, near ranger post; 1 Sep. 2020; A.D. Tran and T.C. Nguyen leg.; TAD20-16; ZVNU. – Ha Tinh Prov. • 1 ♀; Vu Quang N.P., a small branch of Song Con River; 23 Apr. 2003; A.D. Tran leg.; TAD0303; ZRC. Description COLOUR (Fig. 5J–L). Frons and vertex pale yellowish, vertex with a longitudinal brown mark medially, eyes blackish brown. Pronotum yellowish brown with a pair of dark brown transverse marks. Hemelytron hyaline light yellowish. In most of specimens: clavus bordered with dark brown mark, becoming thicker on anterior margin; corium with two dark brown marks on middle part; a dark brown mark extending towards membrane; membrane generally transculent, brownish. Some specimens collected from Cao Bang and Phu Tho with variations in colour pattern of hemelytra. In some specimens from Phu Tho Prov. (Fig. 5K, at localities TS1510, TS1511): markings on hemelytra distinct but brighter overall, marks in middle part more fused into one large mark, and a dark mark (resembling inverted A-shape) just before membrane; membrane light coloured. In specimens from Cao Bang Prov. (Fig. 5L): markings on hemelytra indistinct, less contrasting against background colour of hemelytra; membrane light coloured. Venter of thorax and abdomen brownish yellow and legs pale yellow. Structural characteristics MACROPTEROUS MALES. Body length 1.63–2.16 (holotype: 1.83), width 0.94–1.13 (holotype: 1.08). Head width 0.68–0.77 (holotype: 0.74). Pronotum short, about five times as wide as long (0.79: 0.16). Pronotum slightly wider than head. Synthlipsis about 1.5 times wider than posterior width of an eye (0.35: 0.24). Lengths of leg segments: fore leg: femur 0.3, tibia 0.18, pala 0.14; middle leg: femur 0.74, tibia 0.27, tarsus 0.36, claw 0.2; hind leg: femur 0.58, tibia 0.4, tarsus I 0.41, tarsus II 0.16, claw 0.04. Prestrigilar flap on segment V with a short apex (Fig. 12B). Strigil present. Median lobe of sternite VII, free lobe, and parameres as in diagnosis. MACROPTEROUS FEMALES. Body length 1.63–2.09, width 0.94–1.19. Head width 0.71–0.77. Pronotum about five times as wide as long (0.76: 0.16). Pronotum slightly wider than head. Synthlipsis about 1.3 times as wide as posterior width of an eye (0.33: 0.24). Lengths of leg segments: fore leg: femur 0.23, tibiotarsus 0.27; middle leg: femur 0.67, tibia 0.21, tarsus 0.36, claw 0.2; hind leg: femur 0.6, tibia 0.36, tarsus I 0.41, tarsus II 0.18, claw 0.09. Distribution Northern Vietnam: Lao Cai, Cao Bang, Phu Tho, Ha Noi, Thanh Hoa, Nghe An, Ha Tinh. Remarks This new species may be related to the group of M. anatolica, M. arcuata sp. nov., M. acuminata sp. nov., and M. fulvopicta sp. nov., as it also has the elongate sub-rectangular free lobe, the broad and flat shaft of the left paramere, and the slender, distally curved shaft of the right paramere. It has strong dark pattern on the dorsum like M. fulvopicta sp. nov., but its dark marks are usually slenderer, and the patterns on the corium are different, sometimes indistinct (see Fig. 5L). The left paramere of M. vietnamica sp. nov. has a rather straight shaft and a trapezoid basal lobe, while in the four species mentioned above, the left paramere has a more sinuate lateral margin of the shaft and the basal lobe is either subovate or subrectangular. The right paramere of M. vietnamica sp. nov. is slenderer and strongly curved at the distal third, while that of the four species above is bent or curved at the distal fourth. In addition, the palar claw of M. vietnamica sp. nov. is much broader and has a different outline compared to that of M. anatolica, M. arcuata sp. nov., M. acuminata sp. nov., and M. fulvopicta sp. nov.Published as part of Ha, Tuyet Ngan & Tran, Anh Duc, 2021, Taxonomy of Micronectidae (Heteroptera: Nepomorpha) from Vietnam, with descriptions of 11 new species, pp. 1-82 in European Journal of Taxonomy 756 on pages 40-44, DOI: 10.5852/ejt.2021.756.1407, http://zenodo.org/record/503301
Micronecta (Micronecta) clavata Tran 2021, sp. nov.
No full textMicronecta (Micronecta) clavata sp. nov. urn:lsid:zoobank.org:act: B4B1E7DD-177F-498A-9A98-80185920F66D Figs 13C–D, 15 Diagnosis Body length 1.4–1.7. Pronotum longer than median head length. Dorsum colour variable. Hemelytron with irregular-shaped light brown marks, sometimes indistinct (Fig. 13C–D). Males: fore femur with two spines on proximal third ventrally, one spine on distal third dorsally, one pair of spines distally, and one long seta dorsodistally; fore tibia without spine; palar claw moderately widened distally, apex rounded (Fig. 15A). Median lobe of sternite VII with angular apex and three or four long setae (Fig. 15C). Free lobe sub-rectangular, mesial angle rounded, lateral angle nearly square, with ca 10 long setae, posterior margin straight (Fig. 15D). Left paramere: shaft broad, flat, with a triangular projection in the middle of lateral margin, distal part tapering towards rounded apex; basal lobe large, sub-rectangular (Fig. 15F). Right paramere: shaft slender and parallel sided proximally, distal fourth curved, club-shaped with a truncate tip; pars stridens processus with about 20 ridges (Fig. 15E). Etymology The species epithet refers to the club-shaped apex of the right paramere. Material examined Holotype VIETNAM • ♂; Cao Bang Prov., Ha Quang, road 203, Truong Ha commune, stream near Kim Dong tomb; 17 Dec. 2013; A.D. Tran et al. leg.; TAD1371; ZVNU. Paratypes VIETNAM – Cao Bang Prov. • 4 ♂♂, 2 ♀♀; same locality data as for holotype; ZVNU. – Phu Tho Prov. • 2 ♀♀; Xuan Son N.P., Chieng stream, near ranger station; 21°06.072′ N, 104°59.433′ E; 27 Aug. 2014; T.S. Nguyen leg.; TS1408; ZVNU • 1 ♂; Xuan Son N.P., Ha Bang stream, near its confluence with Xoan stream; 21°5.318′ N, 104°58.87′ E; 6 May 2016; T.S. Nguyen leg.; TS1606ĐT; ZVNU • 3 ♂♂, 1 ♀; Xuan Son N.P., Ha Bang stream, Ha Bang village area; 21°04.343′ N, 104°59.182′ E; 7 May 2016; T.S. Nguyen leg.; TS1610; ZRC • 1 ♂; Xuan Son N.P., Xoan stream, Xoan village area; 21°05.270′ N, 104°57.591′ E; 7 May 2016; T.S. Nguyen leg.; TS1609; ZVNU • 1 ♂; Xuan Son N.P., Kim Thuong, Xoan stream; 28 Aug. 2013; A.D. Tran et al. leg.; TAD1343; ZVNU • 1 ♂; Xuan Son N.P., Ban Coi, Coi stream, site 1, water from underground; 29 Aug. 2013; A.D. Tran et al. leg.; TAD1349; ZVNU • 4 ♂♂, 5 ♀♀; Xuan Son N.P., Coi stream, site 3, in front of cave; 21°01.190′ N, 104°56.624′ E; 24 May 2015; T.S. Nguyen leg.; TS1519; ZVNU • 1 ♀; Xuan Son N.P., Coi stream, site 3, in front of cave; 21°01.190′ N, 104°56.624′ E; 27 Aug. 2015; T.S. Nguyen leg.; TS8519 ZVNU • 1 ♂; Xuan Son N.P., Than stream, site 2; 21°11.257′ N, 104°52.382′ E; 24 May 2015; T.S. Nguyen leg.; TS1515; ZVNU. – Hanoi • 2 ♂♂, 1 ♀; Ba Vi N.P., Khoang Xanh, Tien stream; 95 m a.s.l.; 17 Dec. 2011; Q.H. Ngo and A.D. Tran leg.; TAD1127; NHMW • 7 ♂♂, 12 ♀♀; Ba Vi N.P., Khoang Xanh, Tien stream; 95 m a.s.l.; 27 Apr. 2012; Q.H. Ngo and A.D. Tran leg.; TAD1208; ZVNU. – Ha Tinh Prov. • 1 ♀; Vu Quang N.P., Song Con River; 23 Apr. 2003; A.D. Tran leg.; TAD0302; ZRC. Description COLOUR (Fig. 13C–D). With two colour forms, especially colour pattern of hemelytra. Darker form, with distinct dark marks on dorsum (specimens from Phu Tho Prov.): frons and vertex pale yellowish, eyes dark reddish brown. Pronotum light brown. Clavus with a discrete dark brown stripe parallel to suture margin, and a transverse brown mark at anterior margin. Corium with three distinct longitudinal stripes, confluent posteriorly. Membrane translucent and brown. Venter of thorax and abdomen dark brown and legs brownish yellow. Paler form with dorsum generally light yellowish brown (specimens from Cao Bang Prov.): frons and vertex pale, eyes dark reddish brown. Pronotum pale yellowish brown. Hemelytron hyaline light yellowish. Clavus with brown suture margin. Corium with light brown longitudinal stripes indistinct. Membrane transculent, light yellowish. Venter of thorax and abdomen light yellowish orange, legs pale yellow. Structural characteristics MACROPTEROUS MALES. Body length 1.53–1.75 (holotype: 1.69), width 0.84–1.02 (holotype: 0.95). Head width 0.59–0.72 (holotype: 0.67). Head slightly wider than pronotum. Pronotum short, about four times as wide as long (0.61: 0.14). Synthlipsis about 1.4 times as wide as posterior width of an eye (0.27: 0.19). Lengths of leg segments: fore leg: femur 0.22, tibia 0.10, pala 0.13; middle leg: femur 0.52, tibia 0.18, tarsus 0.25, claw 0.16; hind leg: femur 0.43, tibia 0.27, tarsus I 0.30, tarsus II 0.12, claw 0.05. Prestrigilar flap on segment V tongue-shaped (Fig. 15B). Strigil present. Median lobe of sternite VII, free lobe, and parameres as in diagnosis. MACROPTEROUS FEMALES. Body length 1.37–1.81, width 0.72–1.02. Head width 0.59–0.68. Head slightly wider than pronotum. Pronotum about four times as wide as long (0.61: 0.14). Synthlipsis 1.6 times as wide as posterior width of an eye (0.27: 0.17). Lengths of leg segments: fore leg: femur 0.18, tibiotarsus 0.18; middle leg: femur 0.5, tibia 0.18, tarsus 0.25, claw 0.14; hind leg: femur 0.42, tibia 0.27, tarsus I 0.27, tarsus II 0.12, claw 0.04. Distribution Northern Vietnam (Cao Bang, Phu Tho). Remarks Among species of Micronecta occurring in Vietnam, four species, namely M. ornitheia, M. pocsi, M. tuwanoni, and M. clavata sp. nov., are most similar to each other, in having a triangular projection on the margin of the shaft of the left paramere. This structure is also present in the left paramere of M. erythra. However, the right paramere of M. erythra is evenly curved throughout the length of its shaft, while that of four species above is nearly straight or only curved near the base of the shaft. The key structure which can help to reliably separate M. ornitheia, M. pocsi, M. tuwanoni, and M. clavata sp. nov. from each other is the apical part of the right paramere. In M. ornitheia, it is widened, with a small tip making it resemble a bird head. In M. pocsi, it is flap-like, with a small notch on the upper margin before apical part. In M. tuwanoni, the shaft of the right paramere is bent at the distal fourth and the apical part is not widened but tapering towards its tip. In M. clavata sp. nov., it is club-shaped and its tip is more truncate, not modified. The left paramere of these four species also has diagnostic features. In M. ornitheia, the triangular projection is situated near to the base of the shaft, and there is a distinct notch basally to the projection; and the basal lobe is longer than wide, and sub-trapezoid. In M. pocsi, the triangular projection is also nearer to the base of shaft, but there is no notch on the lateral margin; and the basal lobe is sub-triangular. In M. tuwanoni, the triangular projection arises on the proximal third (thus nearer to the base) of the shaft, and the basal lobe is trapezoid. In M. clavata sp. nov., the triangular projection is near to the middle part of the lateral margin of the shaft, and the basal lobe is sub-rectangular.Published as part of Ha, Tuyet Ngan & Tran, Anh Duc, 2021, Taxonomy of Micronectidae (Heteroptera: Nepomorpha) from Vietnam, with descriptions of 11 new species, pp. 1-82 in European Journal of Taxonomy 756 on pages 49-51, DOI: 10.5852/ejt.2021.756.1407, http://zenodo.org/record/503301
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