Haltichella strigata Wang & Li, 2021

Wang, Zi-Tong & Li, Cheng-De, 2021, Three new species, and new distributional data, of Haltichella (Hymenoptera, Chalcididae) from China, ZooKeys 1060, pp. 1-16 : 1

Haltichella strigata Wang & Li sp. nov.

Figure 3

Type material.

Holotype, ♂ (NEFU), China, Heilongjiang Province, Harbin City, Maoershan Town, 19.VII.2014, sweeping, Hai-Feng Bai. Paratypes (NEFU): 1 ♂, China: Heilongjiang Province, Yichun City, Liangshui National Nature Reserve, 11.VII.2013, sweeping, Hui Geng, Yang Peng, Si-Zhu Liu, Guo-Hao Zu; 1 ♂,China: Heilongjiang Province, Yichun City, Liangshui National Nature Reserve, 1.VIII.2015, sweeping, Xing-Yue Jin, Si-Zhu Liu, Xin-Yu Zhang; 1 ♂, China: Heilongjiang Province, Yichun City, Fenglin National Nature Reserve, 15.VII.2011, sweeping, Jun-Chao Wang.

Diagnosis.

Body mostly black (Fig. 3A ), antenna with scape yellowish brown, funicle yellowish brown to brown and club yellowish brown; fore and mid legs yellowish brown, metafemur reddish brown; eye (Fig. 3D ) with dense and long setae; scape shorter than pedicel to Fu2 combined; Fu1 longest; all the funicular segments longer than broad; postmarginal vein shorter than marginal vein and 3.5 × as long as stigmal vein (Fig. 3E ); Gt1 with two longitudinal carinae at base, between them with some longitudinal striae (Fig. 3H ).

Description.

Male (holotype). Body length 2.9 mm, mostly black (Fig. 3A ). Head and mesosoma with dense punctures and white pubescence; antenna (Fig. 3C ) with scape yellowish brown, funicle yellowish brown to brown and club yellowish brown; eye silvery gray and ocelli brownish (Fig. 3D ); tegula yellowish brown; fore and mid legs yellowish brown; hind leg mostly reddish brown except yellowish brown tarsus, distal apex of tibia yellowish brown; fore wing hyaline, venation brownish.

Head (Fig. 3B, D ) with long, white pubescence, 1.2 × as wide as long in frontal view; eye with long, white setae; scrobe not reaching anterior ocellus, finely striate; preorbital carinae distinct and not reaching behind anterior ocellus; POL 5 × as long as OOL; antenna (Fig. 3C ) with scape shorter than pedicel to Fu2 combined; pedicel small; Fu1 longest, 1.7 × as long as broad; all the funicular segments longer than broad; Fu2-7 subequal in length; club 2-segmented, 2.6 × as long as maximum width, 1.8 × as long as and about as broad as the preceding segment.

Mesosoma (Fig. 3I ) with dense punctures and white pubescence, apex of mesoscutellum with two teeth, pubescence on mesoscutellum longer than that on pronotum and mesoscutum; propodeum (Fig. 3F ) with submedian carinae distinct and parallel, between them with some transverse and fine striations. Fore wing hyaline (Fig. 3E ), 2.4 × as long as broad; postmarginal vein shorter than marginal vein and 3.5 × as long as stigmal vein. Metafemur (Fig. 3G ) and metatibia with long and white pubescence; metacoxa with coxal tooth on baso-dorsal side; metafemur 2.2 × as long as broad, with a row of comb of teeth but without forming any lobes.

Metasoma (Fig. 3H ) oblong, 1.6 × as long as broad in dorsal view; Gt1 longest, occupying 0.6 × length of metasoma with two longitudinal carinae at base, between them with some longitudinal striae, with white pubescence on lateral sides; dorsal surface of Gt2-6 with microsculptured and white pubescence.

Female. Unknown.

Hosts.

Unknown.

Distribution.

China (Heilongjiang).

Variation.

Two paratypes differ from the holotype by having black eyes, but no other significant differences were found in the available material.

Etymology.

Latin: stria = furrow, line; and refers to the longitudinal striae between two longitudinal carinae of T1.

Comments.

Haltichella strigata sp. nov. is similar to H. achterbergi Narendran, 1989 in having a similar shape of the antenna and the metasoma, but can be separated from the latter by the following combination of characters. The new species has the fore wing hyaline (vs partly infuscated in H. achterbergi ); Gt1 with some striae between the two longitudinal carinae (vs absent); postmarginal vein shorter than the marginal vein (vs longer); dorsal surface of Gt 2-6 with white pubescence (vs glabrous and polished on the dorsal side medially).

Compared with other species of this genus, the new species differs by having dense and long setae on its eyes (Fig. 3D ) and Gt1 with some striae between the two longitudinal carinae. A female holotype would be preferable but we failed to collect female specimens. However, most likely the female will share at least part of the differences listed for the male holotype.

Distribution.

New distributional records for China.

Figures

Figure 3. Haltichella strigata sp. nov. (holotype male) A habitus, lateral view B head, front view C antenna D head, dorsal view E forewing F propodeum G hind leg H metasoma I mesosoma, dorsal view.