Hyperimerus pusillus (Walker, 1833)

Yang, Lan, Huang, Da-wei & Xiao, Hui, 2019, A new species of Hyperimerus Girault from China, with a key to species of the genus (Hymenoptera, Chalcidoidea, Pteromalidae), ZooKeys 817, pp. 105-112 : 105

Hyperimerus pusillus (Walker, 1833)

Cyrtogaster pusilla Walker, 1833: 383. Holotype female (BMNH No. 3300), examined.

Hyperimerus pusillus (Walker): Graham 1969: 83; Bouček 1993: 1306; Huang and Xiao 2005: 281-282; Schender et al. 2014: 414-417.

Mespilon exiguum Graham, 1957: 406. Synonymized by Graham 1969: 83.

Diagnosis.

Female. Body (Fig. 7, 8) length approximately 1.5 mm, dark green. Head width 1.32 × height in frontal view. Eyes height 0.58 × head height; eyes separated by 1.07 × their height. Gena with malar sulci distinct, malar space 0.55 × eyes height. Antenna (Fig. 9) with scape reaching anterior ocellus; pedicel and flagellum combined 1.2 × head width; pedicel broader than Fu1, clava shorter than length of Fu5 - Fu7 combined. Scutellum with frenum ca. 1/3 length of scutellum. Propodeum with areolate sculptures irregular and sparse, most of sculptures 2 × as big as propodeal spiracles (Fig. 10). Marginal fringe of outer margin of fore wing shorter than length of uncus; marginal vein shorter than postmarginal vein (0.59 ×), postmarginal vein approximately 1.85 × as long as stigmal vein. Petiole 0.4 × as long as broad. Gaster 1.91 × as long as broad; narrower than thorax, shorter than the length of head and mesosoma combined. Ovipositor sheaths slightly produced in dorsal view; gaster in lateral view, ovipositor sheaths 0.26 × length of gaster, 0.44 × length of hind tibia.

Material examined.

China, 1♀2♂, Sichuan: Kangding, 15.VI.2017, leg. Yanzhou Zhang (Hyp-2018-07, original number ZYZ-2017-28; Hyp-2018-09, original number ZYZ-2017-29); 1♀, Sichuan: Kangding, 2.VIII. 2017, leg. Yanzhou Zhang (Hyp-2018-04, original number ZYZ-2017-21); 1♀, Sichuan: Kangding, 29.VI.2017, leg. Yanzhou Zhang (Hyp-2018-11, original number ZYZ-2017-42); 1♂, Tibet: Zhamo, 2700m, VII. 19.1978, leg. Fasheng Li.

Hosts.

Parasitoids of Psylla pyricola ( Ghahari et al., 2010), Phenacoccus aceris , Psylla ulmi (Dzhanokmen, 1978).

Distribution.

China (Sichuan, Tibet), Holarctic, Oriental, and Neotropical regions.