Thagria triangula Fan & Li
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publication ID |
https://doi.org/ 10.11646/zootaxa.3918.4.1 |
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publication LSID |
lsid:zoobank.org:pub:14FD40D0-1D41-461A-B5E6-02FD4F996266 |
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DOI |
https://doi.org/10.5281/zenodo.5261497 |
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persistent identifier |
https://treatment.plazi.org/id/CD5187C4-E32C-FFC6-B89D-FDCD7417F8A4 |
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treatment provided by |
Plazi |
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scientific name |
Thagria triangula Fan & Li |
| status |
sp. nov. |
Thagria triangula Fan & Li View in CoL sp. nov.
( Figs. 224–248 View FIGURES 224 – 233 View FIGURES 234 – 248 )
Description. Body length of male 6.1–7.0 mm, female 8.0–8.5 mm.
Slender, medium-sized species ( Figs. 224 View FIGURES 224 – 233 , 234 View FIGURES 234 – 248 ). General color brown, suffused with yellow spots on crown, pronotum, mesonotum and forewing ( Figs. 224 View FIGURES 224 – 233 , 234 View FIGURES 234 – 248 ). Crown with midline yellow (male) or apical 1/3 yellow (female); ocelli and eyes brown ( Figs. 226 View FIGURES 224 – 233 , 236 View FIGURES 234 – 248 ). Face dark brown, with clypeus with one yellowish brown Ushaped band (male) or deep V-shaped band (female), and scattered with (female) or without (male) yellow spots ( Figs. 227 View FIGURES 224 – 233 , 237 View FIGURES 234 – 248 ).
Head with anterior margin sharply angulate, crown wider than eye width, distally portion beyond eyes about 1/ 2 of midline, coronal suture evident, about 2/3 of entire median length, disk depressed ( Figs. 226 View FIGURES 224 – 233 , 236 View FIGURES 234 – 248 ). Face with clypeus long, lateral margins slightly convex; clypellus short, inflated longitudinally and medially, base broad, as wide as clypeus at juncture of clypeal suture, apical half constricted, apex nearly truncate ( Figs. 227 View FIGURES 224 – 233 , 237 View FIGURES 234 – 248 ). Crown, pronotum and mesonotum midline ratio about 1.3:1:1.5 (male) or 1.6:1:1.5 (female) ( Figs. 226 View FIGURES 224 – 233 , 236 View FIGURES 234 – 248 ). Forewing long, apex rounded, appendix narrowed ( Figs. 224, 225 View FIGURES 224 – 233 , 234, 235 View FIGURES 234 – 248 ).
Male genitalia. Pygofer lobe in lateral view tapered apically, caudodorsal margin with pair of long slender processes ( Fig. 228 View FIGURES 224 – 233 ). Ventral processes of segment X short, with small spine subapically ( Figs. 228, 229 View FIGURES 224 – 233 ). Subgenital plate long, segmented subbasally, with fine long setae distally ( Fig. 230 View FIGURES 224 – 233 ). Dorsal connective broadly Ushaped, stem absent, rami long, attached to base of ventral processes of segment X ( Fig. 229 View FIGURES 224 – 233 ). Aedeagus base broad, gradually narrowed toward apex, in lateral view slightly curved dorsad ( Figs. 231, 232 View FIGURES 224 – 233 ); paraphysis in dorsal view symmetrical, middle third broader than both ends, apex subtruncate with two very small spines laterally, apical half curved ventrally in lateral view, middle 2/3 with paired triangular processes laterally, edges serrated ( Figs. 231, 232 View FIGURES 224 – 233 ). Style slender, longer than paraphysis, biramose near middle, inner branch with small teeth, opposite glabrous ( Figs. 231, 233 View FIGURES 224 – 233 ).
Female genitalia. Ovipositor ( Figs. 238–248 View FIGURES 234 – 248 ) as in T. decussata Fan & Dai , sp. nov., except sternite VII apparently wider than length, ratio about 2:1, posterior margin convex with shallow concavity medially in ventral view ( Fig. 238 View FIGURES 234 – 248 ); valvifer I in lateral view, longer than width, posterodorsal margin without lobe ( Fig. 240 View FIGURES 234 – 248 ); valvifer II length-width ratio 3.6:1 ( Fig. 241 View FIGURES 234 – 248 ); valvulae II each with 14 or 16 teeth on apical fourth, and with one shared tooth on base of two separate blades ( Fig. 246 View FIGURES 234 – 248 ).
Type materal. Holotype: ♂, CHINA: Guangxi, Shiwandashan, 4 May 2012, coll. Yang Nannan ( GUGC). Paratypes: 1♂ 1♀, CHINA: Zhejiang, Tianmushan, 20 July 2009, coll. Meng Zehong & Chen Yong ( GUGC).
Etymology. The new species name is derived from Lain word “ triangula ” meaning triangular, referring to the two triangular processes on the middle 2/3 of the paraphysis.
Remarks. This species strongly resembles T. projecta (Distant, 1908) in external morphology and male genitalia, but the paraphysis has a pair of processes on the middle 2/3 ( Fig. 231 View FIGURES 224 – 233 ), which are absent in T. projecta ( Fig. 221 View FIGURES 214 – 223 ).
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.