Ericydnus aeneus Nikolskaya, 1952

Kang, Ning, Hu, Hongying, Guo, Shuhan & Luo, Shungang, 2024, A new genus and three newly recorded species of Encyrtidae (Hymenoptera, Chalcidoidea) from China, ZooKeys 1193, pp. 49-61 : 49

Ericydnus aeneus Nikolskaya, 1952

Fig. 4A-G

Ericydnus aeneus Nikolskaya, 1952: 357.

Ericydnus (Aeneus) robustior Nikolskaya, 1952: 96. Synonymized by Trjapitzin 1989.

Material examined.

5♀♀ 8♂♂, China: Xinjiang, Ruoqiang, Altun Mountain Nature Reserve, 36°58′10.89″N, 90°14′44.19″E, Altitude : 4021.95 m, 14-21.VII.2020. Coll. Shun-Gang Luo, by malaise trap ; 4♀♀ 3♂♂, 37°51′49.39″N, 89°36′31.77″E, Altitude : 3782 m, 13.VII.2020. Coll. Shun-Gang Luo, by yellow pan trapping (all deposited in ICXU) .

Diagnosis.

Female. Length 1.65-1.95 mm (Fig. 4A ); body dark aeneous, head and mesoscutum covered with distinct white setae, antenna and legs black, eyes and ocelli dark red; forewing hyaline, with infuscate around postmarginal and stigmal vein, venation yellow-brown (Fig. 4D ); tarsi dark brown. Head width around 1.09 × head length in frontal view, with light reticulate, ocelli forming an obtuse angle (103-107°), OCL 0.82 × OOL; torulus below the level of lower eye margin, F1-F6 shortened towards the end, clava 3-segmented, apex with oblique truncation (Fig. 4C ), mandible bidentate. Mesoscutum flat, axillae touching (Fig. 4B ); forewing hyaline, with infuscate mark under postmarginal and stigmal vein, linea calva entire; mid tibia slightly shorter than exerted ovipositor, its spur slightly longer than basitarsus (Fig. 4E ). The exerted hypopygium 0.14 × as long as gaster.

Male. Length 1.35-1.52 mm (Fig. 4F ), clava unsegmented (Fig. 4G ), apical rounded, other characters same as female.

Hosts.

Pseudococcidae , Trionymus perrisii and Trionymus multivorus ( Japoshvili and Hansen 2013).

Distribution.

China (Xinjiang) new record; Azerbaijan, Europe, Norway, Portugal, Romania, Spain, Turkey, Uzbekistan.

Comments.

Ericydnus danatensis is similar to E. aeneus but differs in the following characters: head 1.5 × as wide as long, torulus at the level of lower eye margin, forewing with distinct dark bands ( Myartseva 1980; Sharkov 1986).

Figures

Figures 4. Ericydnus aeneus Nikolskaya, female A habitus, dorsal view B mesoscutum, dorsal view C antenna D forewing E mid leg. Male: F habitus, dorsal view G antenna. Scale bars: 100 μm.