Jungicephus bidentus, Haiyan Nie, Lin Liu & Meicai Wei, 2016

Haiyan Nie, Lin Liu & Meicai Wei, 2016, On Jungicephus Maa (Hymenoptera: Cephidae) with description of a new species from China, Zoological Systematics 41 (2), pp. 236-240 : 238

Jungicephus bidentus sp. nov.

( Figs 1–14 )

Female. Body length 10.5 mm ( Fig. 1 ). Body black, a cross band near base of mandibles ( Fig. 6 ), a stripe on lower inner orbit, a strongly curved cross band on supraclypeal area ( Fig. 2 ), a small macula on posterior orbit, a central spot on mesoscutellum ( Fig. 12 ), posterior band on abdominal tergites 5–6, posterior corner of tergite 7, a small spot below spiracle of tergite 8, small middle spot on tergites 9–10, shiny yellow. Legs black, a large spot on outer side and a small spot on ventral apex of hind coxa, apex of fore and middle femora and apical 3/4 of hind femur shiny yellow, tibia and tarsus of fore and middle legs yellowish brown, apical third of hind tibia and hind tarsus entirely dark brown. Wings hyaline, base of vein C brown, other veins and pterostigma blackish brown. Hairs on dorsal side of head and thorax dark brown, hairs on mesopleuron pale brown.

Body shiny. Supraclypeal area feebly coriaceous, clypeus and mandibles densely and coarsely punctured, temple and postocellar area minutely and sparsely punctured, frons and upper inner orbit hardly punctured; anterior half of pronotum polished, without punctures or sculpture, posterior half evenly punctured; scutum densely punctured, shiny; mesoscutellum hardly punctured, smooth and strongly shiny; center of metapostnotum densely microsculptured; mesepisternum feebly microsculptured, upper transverse furrow densely microsculptured; first and second abdominal terga largely polished, impunctate, lateral sides of tergites 1–2 and all other tergites densely punctured.

Malar space 1.25 times diameter of lateral ocellus; left mandible as Fig. 6 ; 5th maxillary palpomere 1.15 times as long as 3rd palpomere ( Fig. 4 ), 3rd palpomere 1.3 times as long as 4th palpomere; labial palp as Fig. 5 ; head in front view as Fig. 2 , frons with a broad and very shallow middle furrow; postocellar furrow fine and shallow, interocellar furrow and lateral furrows absent; POL: OOL: OCL=17: 10: 5; temple shorter than eye in dorsal view and distinctly narrowed backwards, posterior margin of head distinctly concave ( Fig. 3 ). Antenna with 23 antennomeres, third antennomere 1.3 times as long as fourth antennomere. Posterior margin of pronotum shallowly incised; mesoscutellum 1.3 times broader than long, anterior margin roundly protruding ( Fig. 12 ). Forewing with cell 2Rs as long as 1Rs, vein 2A roundly bent at basal corner, and being separated from vanal fold about 3 times breadth of vein 2A ( Fig. 9 ). Claw as Fig. 7 . Abdominal tergum 1 as Fig. 12 ; ovipositor sheath as Fig. 11 , apical sheath 0.53 times as long as basal sheath. Lance simple, slightly curved up with 12 small dorsal dents in apical half; lancet simple, distinctly curved up with 13 oblique dents in apical 4/7.

Male. Body length 8.5–10.5 mm. Color and structure similar to female except facial macula larger ( Fig. 13 ), mesoscutellum entirely black, abdominal tergites without yellow band, posterior corner of 4th–8th tergites with yellow macula, posterior margin of abdominal sternites 4–8 yellow; claw as Fig. 8 ; 8th sternite deeply and roundly incised, posterior margin of sternite 9 shallowly incised ( Fig. 14 ).

Variation. Antennomeres varies from 21 to 23.

Distribution. China (Beijing, Shaanxi, Henan, Chongqing).

Etymology. The specific epithet refers to the two teeth of the left mandible.

Holotype. ♀, Chongqing, Nanchuan, top of north slope of Mt. Jinfo (29˚01'55"N, 107˚11'09"E; elev. 2100 m), 1.VII. 2012, coll. Meicai Wei, Gengyun Niu. Paratypes. 8♂, same data as the holotype; 1♂, Shaanxi, Zhouzhi, Louguantai (34˚02'939"N, 108˚19'18"E; elev. 899 m), 25.V.2006, coll. Xun Zhu; 1♂, Henan, Songxian , 19.VII.1996, coll. Meicai Wei; 1♀, Beijing, Xiaolongmen , 29.VII.1984, coll. Hong Huang.

Host plant. Unknown.

Remarks. See the above key for the differences between the new species and the type species of the genus.

Figures

Figures 1 – 14. Jungicephus bidentus sp. nov. 1. Adult female, dorsal view. 2. Female head, frontal view. 3. Female head, dorsal view. 4. Maxillary palp. 5. Labial palp. 6. Left mandible. 7. Female claw. 8. Male claw. 9. Fore wing. 10. Hind wing. 11. Ovipositor sheath. 12. Mesoscutellum and propodeum. 13. Male head, frontal view. 14. Apical two sternites in male, ventral view.