Asicimbex nanjingensis Yan & Wei, 2022

Yan, Yu-Chen, Yan, Wen-Long, Deng, Tie-Jun & Wei, Mei-Cai, 2022, Asicimbex Yan, Deng & Wei, a new genus with eight new species and four new combinations (Hymenoptera, Cimbicidae), Journal of Hymenoptera Research 91, pp. 265-308 : 265

Asicimbex nanjingensis Yan & Wei sp. nov.

Fig. 12

Material examined.

Holotype, female, China: Jiangsu Province, Nanjing City, Zhongshanling , July 2007, leg. Meicai Wei. Paratype, 1 male, same data as holotype (ASMN) .

Diagnosis.

This new species is most similar to A. concavicaputus Yan & Wei sp. nov. but differs from it by the following characters: antennomere 3 as long as the longest axis of eye; malar space shorter than the basal 2 antennomeres together; the anterior smoky stripe of fore wing extending to the apex; head with dorsal black macula remote from eyes; posterior of postocellar area not concave at middle; the first annulus of lance 2.2 × as high as long.

Description.

Holotype, female. Body length 15 mm (Fig. 12A ).

Color. Head dark brown (Fig. 12C, F ), frontal area and ocellar area blackish brown; antenna brown at base, dark brown at apex. Thorax black (Fig. 12E, I ), posterior margin of pronotum, anepimeron, tegula, metascutellum and lateral carina, metanotum, a large macula on posterior of mesepisternum, middle suture of metepisternum, metepimeron largely reddish brown; abdomen dark brown (Fig. 12L, M ), tergum 1 except both lateral margins black, tergum 2 blackish brown, basal margin of terga 3-8 black. Legs reddish brown, middle and hind coxae, trochanters and stripes on outer side of femora brownish black. Fore wings smoky in anterior half and hyaline in posterior half (Fig. 12A ), veins pale brown, stigma yellowish brown; hind wing weakly infuscate.

Head. Head densely and minutely punctured dorsally, clypeus sparsely punctured, surface smooth with strong luster; anterior incisions of clypeus deep and round; labrum small, broader than long; malar space 1.6 × diameter of middle ocellus; postocellar area 1.5 × broader than long; without middle furrow; lateral furrows narrow, subparallel; POL: OOL: OCL = 5: 8: 11. Head clearly dilated behind eye in dorsal view (Fig. 12C, F ). Antenna about 1.6 × broader than head breadth, club breadth about 2.2 × apical breadth of antennomere 3, club length 1.1 × length of antennomere 3, antennomere 3 as long as the longest axis of eyes (Fig. 12H ).

Thorax. Mesonotum, mesopleuron deeply and densely punctured, interspace between punctures microsculptured (Fig. 12E, I ). Notauli broad and deep; lower margin of metapleuron with obtuse oblique carina; mesoscutellum roundly elevated without middle furrow; cenchri elliptical, distance between cenchri about 3 × the longest axis of a cenchrus; metascutellum triangularly protruded upwards (Fig. 12E ).

Abdomen. Abdominal terga with fine and dense microsculptures (Fig. 12L, M ). Tergum 1 with distinct lateral carina at anterior 2/3, hind corner pointed, distinctly protruded, posterior margin broadly and very deeply incised to a depth about 3/4 lateral length of tergum; middle process of sternum 7 broad, apex roundish, basal breadth about 1/3 breadth of sternite 7. Lancet with 42 serrulae (Fig. 12N ); middle serrulae distinctly narrowed toward blunt apex with 4-5 proximal and 5-6 distal subbasal teeth, distance between serrulae 2.6 × basal breadth of a serrula (Fig. 12O ); lance short and broad, subapical annuli feebly broadened, total length of annuli 3.6 × height of 13th annulus, first annulus 2.2 × as high as broad (Fig. 12L ).

Male. Body length 20 mm (Fig. 12B ). Body color and structures similar to female, but differs from the latter in the following characters: fore coxae and femora distinctly prolonged (Fig. 12P ), middle and hind coxae and femora distinctly enlarged and extended, coxae prismatic with edges, shiny. Subgenital plate roundish at apex. Penis valve broad as shown in Fig. 12K , gonoforceps as shown in Fig. 12J .

Distribution.

China (Jiangsu).

Etymology.

The species name is derived from its type locality, Nanjing.

Host plant.

Unknown.

Figures

Figure 12. Asicimbex nanjingensis Yan & Wei sp. nov., A holotype female in dorsal view B allotype male in dorsal view C head of female in front view D head of male in front view E thoracic notum F head of female in dorsal view G head of male in dorsal view H antenna of female I mesopleuron and metapleuron J gonoforceps K penis valve L abdominal terga M lateral side of abdomen N lancet O middle serrulae P coxa and femur of male.