Gasteruption formilis
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Ordo: Hymenoptera
Familia: Gasteruptiidae
Genus: Gasteruption
Name
Gasteruption formilis Alekseev, 1995 – Wikispecies link – Pensoft Profile
- Gasteruption formilis Alekseev, 1995: 42 (in key only).
Type material
Not available.
Other material
1 ♀ + 1 ♂ (ZJUH), “[China:] Gansu, Zhenyuan, VII.1981, Wei Cao”; 1 ♂ (ZJUH), “[China:] Xinjiang, Aletai, 25.VII.1990, Deng-yuan Wang”; 1 ♂ (ZJUH), “[China:] Xinjiang, Tacheng, 11.VII.1988, Qi Ma”.
Diagnosis
Ovipositor sheath 0.5–0.6 times as long as hind tibia and tarsus combined, about 0.4 times as long as metasoma and as long as hind tibia; hypopygium comparatively shallowly emarginate posteriorly; apex of ovipositor sheath black or dark brown; mesoscutum rather finely and very irregularly rugulose or rugose (Fig. 113; males have rugose, females anteriorly rugulose); hind tibia about 1.2 times as long as hind femur and trochanter and less swollen (Fig. 114); hind basitarsus comparatively short and wide (Fig. 114); head truncate medio-posteriorly or nearly so; vertex and frons matt and more or less coriaceous (Fig. 116); occipital carina obsolescent to narrowly lamelliform medio-dorsally (Fig. 111); clypeus with large shallow depression up to dorsal third (Fig. 115, 122); apical antennal segment 1.4–1.5 times third antennal segment; malar space 0.1–0.3 times as long as second antennal segment (= pedicellus); propleuron 0.7–0.8 times as long as mesoscutum in front of tegulae, robust (Fig. 112); median carina of propodeum absent (but sometimes a slightly elevated smooth median line).
Description
Described from a female from Gansu (Zhenyuan), body length 8.5 mm, of fore wing 4.5 mm.
Head. Head directly narrowed behind eyes and weakly curved laterally (Fig. 116); temple 0.6 times as long as eye in dorsal view; vertex and frons matt and finely rugulose; vertex moderately convex posteriorly (Fig. 111) and without depression medio-posteriorly (Fig. 116); occipital carina narrow and non-lamelliform medio-dorsally (Fig. 111); third antennal segment 1.5 times as long as second segment, fourth antennal segment as long as third segment, fifth antennal segment 0.9 times as long as third segment (Fig. 118); eye glabrous; OOL 1.7 times as long as diameter of posterior ocellus; minimum width of malar space 0.2 times as long as second antennal segment; clypeus with a distinct depression (Fig. 115).
Mesosoma. Length of mesosoma 1.7 times as long as its height; propleuron with rugulose, 0.8 times as long as mesoscutum in front of tegulae (Fig. 112); side of pronotum reticulate-rugose or rugose; mesoscutum and scutellum rugose (Fig. 113); propodeum reticulate-rugose, medio-longitudinal carina indistinct.
Wings. Fore wing: first discal cell small and subtriangular, m-cu short (Fig. 117).
Legs. Hind coxa robust and dorsally rugose; length of hind femur, tibia and basitarsus 4.3, 3.7 and 4.0 times their width, respectively (Fig. 114); middle tarsus 1.1 times as long as middle tibia; hind tibia 2.0 mm.
Metasoma. Ovipositor sheath 0.2 times as long as body, 0.4 times as long as metasoma, 0.5–0.6 times as long as hind tibia and tarsus combined and as long as hind tibia; hypopygium v-shaped incised apically.
Colour. Dark brown; pronotum red; mesoscutum black-brown; medio-longitudinal part of propodeum red; second-fifth metasomal tergites with red band; wing membrane slightly infuscate; pterostigma dark brown.
Male (described after a male from Xinjiang). Body length 10.0 mm; temple 0.75 times as long as eye in dorsal view (Fig. 119); third antennal segment 1.5 times as long as second segment, fourth and fifth antennal segment as long as third segment (Fig. 121); OOL 1.3 times as long as diameter of posterior ocellus; minimum width of malar space 0.2 times as long as second antennal segment; length of mesosoma 1.7 times as long as its height; side of pronotum reticulate-rugose or rugose; mesoscutum coarsely rugose, posteriorly coarsely reticulate-rugose (Fig. 120); scutellum rugose; medio-longitudinal carina of propodeum indistinct; length of hind femur, tibia and basitarsus 4.3, 3.7 and 5.0 times their width, respectively (Fig. 123); middle tarsus 1.1 times as long as middle tibia; colour of body black; mandible dark brown; legs (except for coxae black) dark brown; matasoma dark brown, but second-fifth metasomal tergites apically red.
Variation. Male: Body length about 10.0–11.5 mm.
Distribution
Palaearctic China (Gansu, Xinjiang).
Biology
Unknown. Collected in July.
Taxon Treatment
- Zhao, K; Achterberg, C; Xu, Z; 2012: A revision of the Chinese Gasteruptiidae (Hymenoptera, Evanioidea) ZooKeys, 237: 1-123. doi
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