Allodynerus reduncus Zhang, Chen & Li 2020, sp. nov.
Creators: name: Zhang, Xue
name: Chen, Bin
name: Li, Ting-Jing
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Eumenidae
Allodynerus
Allodynerus reduncus

description: Allodynerus reduncus Zhang, Chen & Li, sp. nov.
(Figs 1–12)
Material examined. Holotype, 1♀, China, Yunnan prov., Diqing City, Deqin County, Foshan Town, Meishi Vil- lage, 28°43′15″N, 98°41′6″E, 2155 m, 22.VII.2014, Tingjing Li (CQNU); paratype, 2♂, same label as holotype (CQNU).
Description. Female (Fig. 1). Body length 8.95 mm. Black, following parts yellow to brownish yellow: clypeus except apical margin and a central and small spot (Fig. 3), most of mandible, a short band along lower inner eye orbit, inter-antennal spot, scape, ventral side of pedicel, an elongated band on temple, most of pronotum, upper part of anterior face of pronotum (Fig. 8), large spot on mesepisternum, tegula except a central translucent spot, parategula, metanotum (Fig. 1), posterolateral band of propodeum, apical band on each of both terga I–VI and sterna II–VI, an arcuate transverse band in the middle of sternum II (almost integrated with apical band) (Figs 5–6), and legs largely; wings lightly brown. Body with dense, pale brown setae, setae on propodeum relatively longer than those of other parts.
Head. Clypeus (Fig. 3) 1.28× as wide as long in frontal view, densely punctate, apex slightly emarginate, emargination width about 1/4 of clypeal width; mandible normal, third tooth without a deep incision; frons, vertex and temple with reticulate punctures, punctures on frons relatively denser than those on other parts of head; smooth area around cephalic foveae extended to outer margin of posterior ocellus (Fig. 8).
Mesosoma. Mesosoma with coarse punctures, dorsal surface of pronotum and mesonotum somewhat reticulate and coarser than other parts of mesosoma; pronotal humeral angle blunt (Fig. 8); setae on anterior part of mesonotum not brush-like in lateral view; mesopleuron with dense punctures, not reticulate (Fig. 9); scutellum flat, rectangle, and punctures somewhat sparser than those on mesonotum; metanotum coarsely punctate, slightly concave mesally; dorsal face of propodeum with honeycomb punctures, upper margin of lateral face with weak sparse punctures and other part coriaceous (Fig. 9), posterior face with minute transverse striae and one median longitudinal carina (Fig. 7); ventral side of fore trochanter and femur with short and dense setae.
Metasoma. Tergum I 1.40× as wide as long in dorsal view, with coarse and dense punctures, punctures except apex coarser than those on mesosoma, and gradually and sparser from base to apex (Fig. 5); punctures of tergum II more or less smaller and sparser than those of tergum I, tergum II with a wide apical lamella strongly bent backward up, two rows of dense and deep punctures forming a wide transverse groove on the base of lamella (Fig. 5); sternum II (Fig. 6) convex basally and punctate, punctures at the apex denser; punctures at visible part of metasomal segment III slightly denser than those of segment II.
Male (Fig. 2). Body length 7.22–7.36 mm. Sculpture, punctation, setae, and coloration as in female except the follows: clypeus wholly yellow, mandible yellow except apex brownish brown to black, tergum II without an arcuate transverse band in the middle; clypeus about as wide as long in frontal view, slightly convex mesally, with smaller and sparser punctures (Fig. 4); terminal antennal segment hooked and bent backward to the base of segment XI (Fig. 10); genitalia as in figure 11: apex of volsella short, wide and more or less pointed, penis valve as in figure 12: ventral lobe of penile valve erect and basal apodeme slightly curved from base to apex, with a tiny bulge near the middle, basal plate of penile valve claviform and at apex gradually narrowed.
Distribution. China (Yunnan).
Remarks. This species is similar to A. mandschuricus Blüthgen, 1953, in sharing with its smooth area around cephalic foveae extended to outer margin of posterior ocellus (Figs 8, 51), third tooth of mandible without one deep incision, apex of volsella short and wide (Figs 11, 57), and basal plate of penis valve claviform (Figs 12, 58). It differs from A. mandschuricus and other members of the genus by the following character combination: body with abundant brownish yellow markings (Figs 1, 2), clypeus of female without two longitudinal lateral carinae apically (Fig. 3), the bulge of basal apodeme closer to middle (Figs 12, 58) (a little farther from the middle in A. mandschuricus, Fig. 58) and apical lamella of tergum II wider and more strongly bent backward up (Figs 5, 59) (narrower and less strongly bent backward and up or not bent in A. mandschuricus).
Etymology. The specific epithet is derived from the Latin word: reduncus (=bent backward), referring to the apical lamella of tergum II that is wide and strongly bent backward and up.
description: Published as part of Zhang, Xue, Chen, Bin & Li, Ting-Jing, 2020, A taxonomic revision of Allodynerus Blüthgen (Hymenoptera: Vespidae: Eumeninae) from China, pp. 545-559 in Zootaxa 4750 (4) on pages 547-549, DOI: 10.11646/zootaxa.4750.4.5, http://zenodo.org/record/3708856