Asicimbex shengi 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 shengi Yan & Wei sp. nov.

Fig. 13

Material examined.

Holotype, female, China: Liaoning Province, Shenyang City, Mt. Qipan , 11 May 2014, leg. Tao Li (ASMN).

Diagnosis.

This new species is similar A. lii Yan & Wei sp. nov., but differs from it by the following characters: the apical club of antenna clearly shorter than antennomere 3 and about 1.15 × as long as antennomeres 4 and 5 together; the mesoscutal middle and lateral lobes black without pale markings, mesepisternum above carina almost entirely reddish brown, surface almost smooth; lancet with 51 serrulae, serrula small, clearly narrowed toward apex, distance between the middle serrulae more than 2 × as broad as a serrula; the total annuli length of lance 5.4 × height of the 13th annulus.

Description.

Holotype, female. Body length about 19 mm (Fig. 13A ).

Color. Head and antenna dark yellowish brown (Fig. 13B-D ), dorsum with a M-shaped black macula; thorax black (Fig. 13E ), narrow posterior margin and broad lateral margin of pronotum, tegula, mesoscutellum and dorsum of metascutellum yellowish brown, mesepisternum largely (only small macula on anterior margin black), posterior part of mesepimeron, metapleuron largely reddish brown (Fig. 13E, H ). Abdominal terga 1-3, median triangular macula of tergum 4, anterior margin of tergum 5 black, other part of tergum 4 and almost entirely tergum 5 yellow brown; both sides of terga 6-8 and ventral fold of terga 2-8 dark brown to blackish brown (Fig. 13I ); sternites largely dark brown; both sides of sternites 4-7 pale brown (Fig. 13F, I ); pale macula at middle of terga 6-8 of the same size, above 4 × broader than long (Fig. 13F ). Fore wing infuscate in anterior half and subhyaline in posterior half, veins and stigma pale brown (Fig. 13A ). Legs yellowish brown, coxae with black longitudinal stripes ventrally and dorsally, trochanters and femora largely blackish brown (Fig. 13G ).

Head. Dorsum of head with indistinct minute punctures, remaining parts smooth with strong luster (Fig. 13B, D ). Anterior incision of clypeus small and roundish, labrum small, roundish at apex; malar space about 1.5 × diameter of middle ocellus; postocellar area weakly elevated, 2 × broader than long; lateral furrows distinct, slightly divergent backwards, anterior part of middle groove distinct; POL: OOL: OCL = 3: 4: 6; head behind eyes weakly enlarged (Fig. 13B, D ). Antenna length about 1.5 × head breadth, club 1.2 × as long as antennomere 3, club breadth about 2.1 × apical breadth of antennomere 3, antennomere 3 as long as longest axis of eyes (Fig. 13C ).

Thorax. Mesonotum including mesoscutellum densely punctured (Fig. 13E ); mesopleuron indistinctly and finely punctured, hardly microsculptured, shiny (Fig. 13H ); mesosternum shallowly and weakly punctured. Median mesoscutal groove and notaulus broad and shallow; mesoscutellum roundly elevated without middle furrow; mesepisternum with a distinct oblique carina; cenchri narrow, distance between inner margin of cenchri 2.2 × longest axis of a cenchrus.

Abdomen. Abdominal terga finely and densely microsculptured (Fig. 13F ). Tergum 1 with lateral carina distinct, posterior corner not produced, posterior margin broadly and roundly incised (Fig. 13F ); middle process of sternum 7 broad, basal breadth about 1/3 breadth of sternite 7 (Fig. 13G ); apical margin of ovipositor sheath truncate in lateral view (Fig. 13K ). Lancet with 51 serrulae (Fig. 13L ), middle serrulae distinctly narrowed toward truncate apex with 4-6 proximal subbasal teeth and 3-5 distal subbasal teeth, distance between serrulae about 2.3 × basal breadth of serrula (Fig. 13M ); lance long and slender, subapical annuli broadened, total length of annuli 5.4 × height of 13th annulus, first annulus 1.6 × as high as broad (Fig. 13J ).

Male. Unknown.

Distribution.

China (Liaoning).

Etymology.

The specific epithet refers to the last name of Dr. Maoling Sheng, a famous Chinese taxonomist of Ichneumonidae .

Host plant.

Unknown.

Figures

Figure 13. Asicimbex shengi Yan & Wei sp. nov., holotype, female A female adult in dorsal view B head in dorsal view C antenna D head in front view E thoracic notum F abdominal terga G leg H mesopleuron and metapleuron I lateral side of abdomen J lance K ovipositor sheath in lateral view L lancet M middle serrulae.