Drabescus macrocladus, Xu & Zhang, 2023
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publication ID |
https://doi.org/ 10.11646/zootaxa.5264.3.7 |
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publication LSID |
lsid:zoobank.org:pub:FC07AB5D-24BD-4E19-8925-517FA9A5DEEF |
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DOI |
https://doi.org/10.5281/zenodo.7836839 |
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persistent identifier |
https://treatment.plazi.org/id/630687B2-FFED-3F45-FF38-FA29832FFB95 |
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treatment provided by |
Plazi |
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scientific name |
Drabescus macrocladus |
| status |
sp. nov. |
1. Drabescus macrocladus View in CoL sp. nov.
( Figs. 1 View FIGURE 1 , 2 View FIGURE 2 )
Description. Body length (including tegmina), male: 8.5–9.5 mm, female: 8.5–9.0 mm.
Body color tawny. Crown ( Fig. 1 View FIGURE 1 , A, B, E) with fore margin black, anterior margin of head ( Fig. 1 View FIGURE 1 , E) with a pale yellow transverse band, upper and lower margin black. Face ( Fig 1. C View FIGURE 1 ) dark brown with broad yellowish transverse band in middle below eyes; antennal pedicel dark brown. Pronotum and scutellum ( Fig. 1 View FIGURE 1 , A, B) with dense brown mottling. Forewing ( Fig. 1 View FIGURE 1 , A, D) with veins yellowish brown, subcosta with periphery black-brown, with triangular whitish transverse band in the middle section. Leg ( Fig. 1 View FIGURE 1 , C, D, E) yellow to brown.
Head ( Fig. 1 View FIGURE 1 , A, B, E) broader than pronotum. Crown ( Fig. 1 View FIGURE 1 , A, B) with anterior margin rounded and produced, median length of vertex slightly longer than next to eyes, transversely concave medially and subapically, coronal suture distinct, extended near 1/3 length of vertex. Face ( Fig. 1 View FIGURE 1 , C) with anteclypeus conspicuously expanded apically; transclypeal suture obscure; lorum broad; gena with oblique wrinkles; lateral frontal sutures extending to corresponding ocelli. Pronotum ( Fig. 1 View FIGURE 1 , A, B, E) with dense fine punctations, lateral margin long, carinate, hind margin strikingly concave.
Forewing ( Fig. 1 View FIGURE 1 , A, D) crimped. Fore femur with anteromedial (AM1) row seta enlarged and stout, intercalary (IC) row with numerous scattered long setae. Metafemur with apical setal formula 2+2+1.
Male pygofer side ( Fig. 2 View FIGURE 2 , I) constricted apically, apex broadly triangular, with numerous long macrosetae near caudal margin, ventroposterior margin without appendages. Valve ( Fig. 2 View FIGURE 2 , J) oval. Subgenital plates ( Fig. 2 View FIGURE 2 , J) with apical process long, digitate, tapering distally and strongly curved dorsad, with several fine hair-like microsetae arising from lateral margin. Style ( Fig. 2 View FIGURE 2 , K) with apical process longish, wide and rather thick, lateral lobe prominently protruding with short microsetae, apex sclerotized. Connective ( Fig. 2 View FIGURE 2 , L, M, N) Y-shaped, ventral margin angled at mid-length in lateral view; stem robust and longer than arms, articulated with aedeagus. Aedeagal shaft ( Fig. 2 View FIGURE 2 , L) curved dorsad, apex expanded in lateral view, lamellate; shaft ( Fig. 2 View FIGURE 2 , M, N) with a pair of long laterobasal processes, process apically tapering and extending nearly to apex of shaft; gonopore ( Fig. 2 View FIGURE 2 , L, M, N) large, apical on ventroposterior surface. Anal tube ( Fig. 2 View FIGURE 2 , I) large, strongly sclerotized laterally and dorsally.
Female: Seventh sternite ( Fig. 1 View FIGURE 1 , H) black, hind margin concave; ovipositor ( Fig. 1 View FIGURE 1 , H) exceeding apex of pygofer; dorsal margin of the first valvulae ( Fig. 2 View FIGURE 2 , O, P) slightly produced near the middle, sculpturing pattern strigate; dorsal margin of the second valvulae ( Fig. 2 View FIGURE 2 , Q, R) with a near median blunt tooth, with serrate teeth restricted to approximately apical one-fourth.
Material examined. Holotype: ♁, Hainan Province, Jianfengling Mountains, 900 m, 7-V-2008, Coll. Men Qiulei ( NWAFU) . Paratypes: 1♁ 1♀, same data as the holotype except 980 m, 5-V-2008 ; 1♀, same data as the holotype except 950 m, 9-V-2008 .
Etymology. The specific epithet of this new species originates from the Latin word “ macro ” and Greek “ klados ”, referring to the aedeagal shaft having a pair of long ramiform laterobasal processes.
Remarks. This new species is similar to D. vilbastei Zhang & Webb, 1996 , but it can be distinguished from the latter by the following characters: face with broad yellowish transverse band in middle below eyes (without transverse band, frontoclypeus black brown in D. vilbastei ); male pygofer side with ventroposterior margin without process (with a pair of processes in D. vilbastei ); style with lateral lobe prominently protruding (absent in D. vilbastei ); aedeagal shaft with apex expanded in lateral view (not expanded in lateral view in D. vilbastei ).
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.