Chelonus (Stylochelonus) acaretrus, Zhou & Achterberg & Tang & Chen, 2024
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publication ID |
https://doi.org/ 10.11646/zootaxa.5412.1.1 |
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publication LSID |
lsid:zoobank.org:pub:DB6DD20F-6EB7-4152-AC80-2F67EE06684B |
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DOI |
https://doi.org/10.5281/zenodo.10676128 |
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persistent identifier |
https://treatment.plazi.org/id/2B5587AD-F07D-730C-FF39-6CADFF07B8E4 |
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treatment provided by |
Plazi |
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scientific name |
Chelonus (Stylochelonus) acaretrus |
| status |
sp. nov. |
Chelonus (Stylochelonus) acaretrus sp. nov.
Figs 101–104 View FIGURE 101 View FIGURE 102 View FIGURE 103 View FIGURE 104
Material examined. Holotype: female, Gutian Mt. , Zhejiang Prov., China, 3.VII.2005, Hongying Zhang, No. 200602221 ( ZJUH) . Paratypes: 1 female, Shenyang , Liaoning Prov., China, 10.VII.1994, Juxian Lou, No. 947173 ; 1 male, Dongliao , Jilin Prov., China, 22–31.VII.1988, Xiaoming Lou, No. 888131 ; 1 female, Lao Mt. , Shandong Prov., China, 4.VIII.1995, Junhua He, No. 955892 ; 1 male, Baotianman , Henan Prov., China, 13–15.VII.1998, Xuexin Chen, No. 991789 ; 2 females, Qingchen Mt. , Sichuan Prov., China, 19.VII.2006, Zhilei Gao, Nos. 200610765, 200610766 ; 1 female, Longxi Mt. , Fujian Prov., China, 8.VII.1991, Changming Liu, No. 969745 ; 1 male, Xiangtuo Mt. , Guangdong Prov., China, 11. V.2004, Zaifu Xu, No. 20048091 ; 2 females and males, Longsheng Huaping , Guangxi Prov., China, 25–26. VI.1982, Junhua He, Nos. 23608, 82382, 822028, 823067 ; 1 male, Bawang Ling , Hainan Prov., China, 20–23.VIII.2005, Jinxian Liu, No. 200702347 .
Diagnosis. This new species is similar to C. (S.) pedator ( Dahlbom, 1833) , both species having the metasomal carapace very short, but they can be separated by the following characters: temples strongly narrowed posteriorly behind eyes in dorsal view ( Fig. 102G View FIGURE 102 ) (versus strongly widened in C. (S.) predator ); metasomal carapace widest at middle ( Fig. 102E View FIGURE 102 ) (versus tapering towards base) and face 1.9 × wider than high ( Fig. 102F View FIGURE 102 ) (versus 1.5 ×).
Description. Holotype, female, length of body 2.9 mm, of fore wing 2.7 mm.
Head. Head transverse, width of head 2.5 × its dorsal length; occiput slightly excavated; antennomeres 22, filiform, antenna slightly widened after middle, length of 3 rd and penultimate antennomeres 3.9 × and 2.2 × their width, respectively; eye 1.5 × as long as temple in dorsal view; OOL: OD: POL=19: 7: 11; temple strongly narrowed behind eyes; frons and vertex striate-rugulose ( Fig. 102G View FIGURE 102 ); face flat, transverse punctate-rugose, width of face 1.9 × its height; eyes about parallel; clypeus sparsely punctulate, interspaces shiny, 2.2 × wider than high, distance between tentorial pits 1.2 × distance between pits and eyes ( Fig. 102F View FIGURE 102 ).
Mesosoma. Length of mesosoma 1.3 × its height; side of pronotum reticulate-rugose, mesopleuron coarsely reticulate-rugose ( Fig. 102B View FIGURE 102 ); notauli indistinct; anterior part of mesoscutum dense punctate and posterior part coarsely reticulate-rugose, scutellum slightly convex, rugose; scutellar suture comparatively deep and with carinae; propodeum coarsely rugose, tubercles distinct ( Fig. 102C View FIGURE 102 ).
Wings. Vein r straight; marginal cell 0.9 × as long as pterostigma; pterostigma 3.5 × longer than wide; r: 3-SR: SR1=14: 11: 62; SR1 straight; marginal cell 2.8 × longer than second submarginal cell; 1-CU1: 2-CU1=15: 29; 2-R1 absent ( Fig. 102A View FIGURE 102 ).
Legs. Hind coxa smooth and shiny; length of hind femur, tibia and basitarsus 3.0 ×, 4.9 × and 3.6 × their maximum width, respectively; length of inner hind tibial spur 0.5 × hind basitarsus.
Metasoma. Length of carapace 1.7 × its maximum width, widest at middle, apex of carapace with small tubercle; basal 0.7 of carapace striate-rugose and reticulate-rugose apically ( Fig. 102E View FIGURE 102 ); carapace in lateral view 2.4 × longer than high, posterior height of metasoma 1.5 × its anterior height, carapace apically slightly incurved ( Fig. 102D View FIGURE 102 ).
Colour. Reddish brown; antenna brown; mandible light brown; palpi light brown; pterostigma and parastigma dark brown; wing and its veins medium light brown; legs partly brown; carapace entirely black.
Male. Antennomeres 27, antenna clearly widened medially, antenna three coloured, 3 rd –5 th antennomeres light brown, 6 th –9 th yellowish and remainder of antennomeres brown ( Fig. 104I View FIGURE 104 ); carapace apically almost not incurved ( Fig. 104D View FIGURE 104 ); apical aperture in posterior view small and nearly round ( Fig. 104F View FIGURE 104 ); carapace with yellowish band in basal 1/3; other characters as in female ( Fig. 104E View FIGURE 104 ).
Biology. Unknown.
Distribution. China (Fujian, Guangdong, Guangxi, Hainan, Henan, Jilin, Liaoning, Shandong, Sichuan, Zhejiang).
Etymology. Named after its short metasomal carapace, “ acares ” is Greek for short and “ etrom ” is Greek for belly.
| V |
Royal British Columbia Museum - Herbarium |
| VI |
Mykotektet, National Veterinary Institute |
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.