Neopius citrinus Sheng & Chen, 2019

Sheng, Ying-Yi, Wu, Qiong, Achterberg, Cornelis Van & Chen, Xue-Xin, 2019, Three newly recorded genera from China (Hymenoptera, Braconidae, Opiinae) with the notes on the genus Neopius and descriptions of three new species, Zootaxa 4604 (3), pp. 588-600 : 592-595

Neopius citrinus Sheng & Chen , sp. n.

Figs 13 –22

Type material. Holotype, ♀ ( ZJUH), “NE China: Liaoning, Shenyang, Dongling , 6.V.1994, Juxian Lou, No. 947507” . Paratypes: 1³ ( ZJUH), “NE China: Heilongjiang, Jingpo Lake, 26.VIII.1995, Juxian Lou, No. 962322”; 1³ ( ZJUH) “NE China: Jilin, Antu , 5–6. VIII.1994, Juxian Lou, No. 976939” .

Description. FEMALE. Holotype. Length. Body 2.6 mm, of fore wing 2.7 mm.

Head. Antennomeres 30, 1.3× fore wing (antenna 3.4 mm); third segment 1.3× as long as fourth segment, length of third, fourth and penultimate segments 2.8, 2.2 and 1.8× their width respectively ( Fig. 21 ); length of maxillary palp 0.7× height of head; labial palp segments petiolate, rather moniliform ( Fig. 12 ); occipital carina complete and present medio-posteriorly, distinctly developed dorsally and with crenulate laterally and dorsally, rather far from hypostomal carina ( Fig. 19 ); hypostomal carina medium-sized; length of eye in dorsal view 1.5× temple; frons coriaceous and glabrous, with two deep depressions laterally and a small but rather shallow depression medially ( Fig. 19 ); face largely granulated, medially weakly elevated ( Fig. 18 ); malar suture shorter than basal mandible width; width of clypeus 2.6× its maximum height and 0.6× width of face; clypeus flattened, smooth except for some punctures and its ventral margin straight; hypoclypeal depression medium-sized; malar suture depressed deeply and distinct, without punctures between malar suture and mandible; mandible uniformly widened baso-ventrally ( Fig. 18 ).

Mesosoma. Length of mesosoma 1.3× its height ( Fig. 15 ); dorsal pronope absent and pronotum horizontal anteriorly; pronotal side coriaceous and coarsely crenulate anteriorly and posteriorly; epicnemial area coarsely crenulate; precoxal sulcus originated from anterior margin of mesopleuron, wide, distinctly impressed and densely and coarsely crenulate, absent posteriorly ( Fig. 15 ); pleural sulcus coarsely crenulate; mesosternal sulcus narrow and finely crenulate; notauli elongated until half of mesoscutum, crenulate basally and gradually reduced posteriorly; mesoscutum coriaceous or superficially granulate; medio-posterior depression of mesoscutum round and rather shallow; lateral margin of mesoscutum crenulate; scutellar sulcus deep, parallel-sided and with 6 short crenulate; scutellum smooth, coriaceous and convex; metanotum crenulate posteriorly ( Fig. 16 ); propodeum densely coarsely sculptured and with a short medio-longitudinal carina anteriorly ( Fig. 17 ); metapleuron largely and densely sculptured, crenulate anteriorly and posteriorly ( Fig. 16 ).

Wings. Fore wing: pterostigma narrow elliptical ( Fig. 13 ); 1-R1 reaching wing apex and 0.9× as long as pterostigma; r:3-SR:SR1 = 7:29:66; 2-SR:3-SR:r-m = 22:29:8; length of r as long as pterostigma; 1-M slightly curved and SR1 nearly straight; m-cu slightly postfurcal; cu-a distinctly postfurcal and 1-CU1 widened; CU1b short and absent apically, first subdiscal cell open; CU1a quite short; apical quarter of M+CU1 sclerotized; first subdiscal cell of fore wing moderately long. Hind wing: M+CU:1-M:1r-m = 14:12:7; cu-a slightly straight; m-cu absent; 1-1A slightly curved ( Fig. 14 ).

Legs. Length of femur, tibia and basitarsus of hind leg 4.4, 8.3 and 5.5× as long as wide, respectively; hind femur and tibia with dense setae; telotarsus enlarged, length of telotarsus 0.7× as basitarsus (Fig. 22).

Metasoma. Length of first tergite as long as its apical width, its surface evenly gradually convex medially, longitudinally rugose and punctate medially and with a medio-longitudinal carina posteriorly, dorsal carinae separated and almost up to posterior margin of tergite, between carinae with fine, longitudinal sculpture ( Fig. 17 ); second suture obsolescent; second tergite as long as third tergite and sparsely granulate-punctate; third tergite and following tergites smooth; second and third tergites 0.4× as long as metasoma after first tergite ( Fig. 12 ); length of setose part of ovipositor sheath 0.1× fore wing and 0.3× hind tibia (Fig. 22).

Colour. Black, dark brown or yellow; vertex and frons largely, mesosoma, first tergite black; antenna, mandible apically, T3–T6 anterior margin, telotarsi and tarsal claw, ovipositor sheath dark brown; temple, face, clypeus, mandible, second tergite and T3–T6 posterior margin; ovipositor; legs except telotarsi and tarsal claw yellow; wing membrane evenly slightly infuscate.

MALE. Antennomeres 27 (1) or 28(1), third antennomere 1.3–1.4× as long as fourth segment, length of third and fourth segments 3.7, 2.7 their width, respectively; length of eye in dorsal view 1.1 or 1.3× temple; malar suture quite shallow and not distinct or wide and deep; length of mesosoma 1.4× its height; r of fore wing shorter than or as long as pterostigma; m-cu nearly interstitial; length of tibia and basitarsus of hind leg 7.5 and 3.3× as long as wide respectively; legs except tarsal claw yellow; T3 posterior margin to T6 dark brown.

Distribution. China (Palaearctic: Liaoning, Jilin, Heilongjiang).

Biology. Unknown.

Etymology. Name is derived from Greek adjective “kitrinos” (means yellow), latinized as citrinus .

Comments. The new species differs from Neopius rudis ( Wesmael, 1835) by having the face yellow (face largely dark brown); notauli nearly complete, basal half crenulate and gradually reduced posteriorly (notauli complete, extended to medio-posterior depression); vein m-cu of fore wing shorter than vein 2-CU1 (vein m-cu of fore wing about 1.5× vein 2-CU1); occiput rather straight in dorsal view (occiput concave in dorsal view)

Figures

FIGURE 12. Neopius citrinus Sheng & Chen, sp. n., ♀, holotype, habitus, lateral aspect.

FIGURES 13–21. Neopius citrinus Sheng & Chen, sp. n., ♀, holotype. 13—fore wing. 14—hind wing. 15—mesosoma lateral aspect. 16—mesosoma, dorsal aspect. 17—propodeum and first metasomal tergite, dorsal aspect. 18—head, anterior aspect. 19—head, dorsal aspect. 20—head, lateral aspect. 21—antenna. 22—hind leg and ovipositor, lateral aspect.