Palpostilpnus aki, Reshchikov & Santos & Liu & Barthélémy, 2019
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publication ID |
https://doi.org/ 10.5852/ejt.2019.582 |
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publication LSID |
lsid:zoobank.org:pub:6DF295A1-1E15-454A-B122-AE4AB4553D17 |
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persistent identifier |
https://treatment.plazi.org/id/45415886-F552-46D2-89D7-6DD771A1AAAA |
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taxon LSID |
lsid:zoobank.org:act:45415886-F552-46D2-89D7-6DD771A1AAAA |
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treatment provided by |
Plazi |
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scientific name |
Palpostilpnus aki |
| status |
sp. nov. |
Palpostilpnus aki sp. nov.
urn:lsid:zoobank.org:act:45415886-F552-46D2-89D7-6DD771A1AAAA
Diagnosis
Body obliquely elongate ( Fig. 5A View Fig ). Postero-ocellar distance 1.5 times as long as ocular-ocellar distance ( Fig. 6G View Fig ). Occipital carina complete. Epomia absent. Epicnemial carina present on lower half of mesopleuron. Propodeal carinae absent except for posterior portion of median longitudinal carina ( Fig. 6C View Fig ). T1 2.35 times as long as apically broad ( Fig. 6A View Fig ). Wings hyaline ( Fig. 6H View Fig ).
Etymology
This species is named after Dr. Akihiro Nakamura of the Xishuangbanna Tropical Botanical Garden.
Material examined
Holotype
CHINA • ♀; Yunnan, Ailao Shan ; 2200 m a.s.l.; Plot B; Malaise trap 323 XTBG; Aug. 2011; A. Nakamura et al. leg.; KIZ.
Description
Female
SIZE. Fore wing length 3.41 mm. Body oblique elongate, 1.42 times as long as its height ( Fig. 5A View Fig ).
HEAD. Face 1.7 times as broad as high, with moderately dense setae, strongly granulose and densely punctate, centrally weakly convex ( Fig. 6B View Fig ). Clypeal suture indistinct. Clypeus slightly convex, with basal half granulose and apical half weakly transversely striate, apical margin sharp, slightly convex. Mandible polished, sparely setose, with dorsal tooth slightly longer than ventral tooth. Malar space nearly polished, 1.14 times as long as mandibular basal width. Gena glossy, sparsely punctate. Vertex punctate, posterior portion from posterior ocelli to occipital carina steeply slanted. Frons densely punctate, with lower half transversely rugose. Postero-ocellar distance 1.5 times as long as ocular-ocellar distance. Antenna shorter than body length, with 24 flagellomeres, ventral side from eighth flagellomere to apex flattened and thickened ( Fig. 6F View Fig ). Occipital carina complete.
MESOSOMA. Pronotum ventrally smooth, dorsally distinctly punctate. Epomia absent. Mesoscutum ovoid, 0.8 times as long as wide, weakly convex, with leathery texture and dense punctures ( Fig. 5E View Fig ). Notaulus absent ( Fig.5C View Fig ). Scutellum slightly evenly convex, shallowly punctate, with apex polished. Postscutellum polished, with scattered punctures. Mesopleuron polished, sparsely punctate, area above dorsal end of epicnemial carina smooth and weakly rugose ( Fig. 5C View Fig ). Epicnemial carina reaching to dorsal 0.5 of mesopleuron ( Fig. 5C View Fig ). Sternaulus absent ( Fig. 5C View Fig ). Metapleuron punctuate and setose, punctures closed. Juxtacoxal carina absent. Submetapleural carina complete. Fore wing with 1cu-a distad of M becoming Rs by 0.3 of length of 1cu-a, 3rs-m absent, distal abscissa of M spectral; ramulus absent; length of vein Cu slightly longer than 2cu-a ( Fig. 6H View Fig ). Hind wing with cu-a strongly inclivous and interrupted at lower 0.18. Distal abscissa of Cu spectral. Distal abscissa of M spectral. Inner profile of fore basitarsus with basal half distinctly bent. Hind coxa with sparse punctures.Hind femur stout, 2.6 times as long as its maximum width ( Fig. 6D View Fig ). Basal portion of hind tibia slender, gradually thick toward apex. Longer spur of hind tibia 0.4 times length of hind basitarsus. Propodeum gradually sloping in lateral view, shallowly punctate, punctures dense on central area and metapleuron, sparser on lateral portion of propodeum. Propodeal carinae absent except for apical portion of median longitudinal carina ( Fig. 6C View Fig ).
METASOMA. T1 2.35 times as long as apically broad, petiole flattened, smooth, centrally with scattered punctures; postpetiole densely punctate, without dorsolateral or median dorsal carinae; ventrolateral carina weak; spiracle small and slightly projected ( Figs 5D View Fig , 6A View Fig ). T2 coarsely and densely punctate ( Fig. 6A View Fig ). T3–T5 coarsely and densely punctate, punctures closer than those of T2 ( Fig. 6B View Fig ). T6 mostly finely and sparsely punctate, centrally polished. Ovipositor very thin, 1.32 times as long as hind basitarsus ( Fig. 6E View Fig ).
COLOUR. Head black. Mandible whitish yellow with teeth apically yellowish brown. Palpi white. Antenna black brown, scape yellowish brown, ventral side of petiole light brown, ventral side from eighth flagellomere to apex brown. Mesosoma yellowish brown, mesoscutum centrally and laterally black brown; apex of scutellum fuscous; mesopleuron with epicnemium black; basal half of propodeum fuscous and central area from base to apex black. Fore and middle legs brownish yellow, fore and middle trochanters whitish yellow, mid tibia and tarsus very lightly fuscous; hind coxa brownish yellow, trochanter fuscous, hind femur brownish yellow with apical 0.3 fuscous, hind tibia fuscous with basal 0.5 whitish yellow; hind tarsus fuscous with basal half of basitarsus and ventral sides of second to fifth segments brownish yellow. T1 entirely black; T2 with basal half and apical margin whitish yellow, with a transverse black band behind middle; T3–T4 black brown with basal and apical margins whitish yellow. Wings hyaline, veins and stigma fuscous. Ovipositor sheath slightly fuscous.
Male
Unknown.
Remarks
This species is similar to P. rotundatus Sheng & Sun, 2013 , but differs from it by the absence of the median propodeal longitudinal carina ( Fig. 6C View Fig ). It is also similar to P. trifolium sp. nov. and P. tamasek sp. nov., from which it differs by the entirely reddish anterior and lateral part of the mesonotum ( Fig. 5E View Fig ) and entirely reddish scutellum (vs black anterior and yellowish lateral part of mesonotum and black scutellum in the latter species) and by the long T1 (2.35 times as long as apically broad, vs 1.8–1.9 times as long as apically broad in P. trifolium sp. nov. and P. tamasek sp. nov.).
Distribution
China (Yunnan).
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