Gasteruption Latreille, 1796

Zhao, Ke-xin, Achterberg, Cornelis van & Xu, Zai-fu, 2012, A revision of the Chinese Gasteruptiidae (Hymenoptera, Evanioidea), ZooKeys 237, pp. 1-123 : 5-6

Gasteruption Latreille, 1796

Gasteruption Latreille, 1796: 113; Pagliano 2008: 202. Type-species (designated by Latreille 1810): Ichneumon assectator Linnaeus, 1758.

Gasteruptron Westwood, 1840: 56. Invalid emendation.

Gastryptium Agassiz, 1846: 159. Invalid emendation.

Gasteryption Schletterer, 1890: 375. Invalid emendation.

Gasteruptia Dominique, 1893: 198. Invalid emendation.

Gasteruptium Schulz, 1906: 133. Invalid emendation.

Gastrhyptium Schulz, 1911: 55. Invalid emendation.

Foenus Fabricius, 1798: 240; Pagliano 2008: 197. Type-species (designated by Latreille 1810): Ichneumon jaculator Linnaeus, 1758. Curtis (1832) designated Ichneumon assectator Linnaeus, 1758, as type-species and this was considered valid by Pagliano (2008: 197). Westwood (1840) considered correctly Ichneumon jaculator Linnaeus to be the type-species as designated by Latreille (1810).

Faenus Abeille de Perrin, 1879: 260, 262. Invalid emendation.

Phoenus Schletterer, 1890: 375. Invalid emendation.

Rhydinofoenus Bradley, 1909: 38; Pagliano 2008: 388. Type-species (by original designation): Rhydinofoenus kaweahensis Bradley, 1909.

Dolichofoenus Kieffer, 1910: 77; Pagliano 2008: 162. Type-species (by original designation): Foenus raphidioides Westwood, 1851.

Trichofoenus Kieffer, 1910: 77; Pagliano 2008: 436. Type-species (by original designation): Gasteruption merceti Kieffer, 1904.

Description.

Body length 5.0-20.0 mm.

Head. Head directly or gradually narrowed behind eyes and curved laterally; vertex convex posteriorly (but flat in e.g., Gasteruption bimaculatum ); occipital carina developed to absent; antenna of female 14-segmented, male 13-segmented; eye large, glabrous or setose; clypeus without longitudinal striae or ridge; mandible short and robust, overlapping slightly when closed, with a large laterally directed basal tooth, subapical tooth small or absent; malar space present; maxillary palpi 6-segmented, labial palpi 4-segmented.

Mesosoma. Propleuron more or less elongate; pronotum divided in three lobes separated by curved crenulate notauli, antero-lateral pronotal tooth present or absent; anteriorly mesonotum in lateral view rounded or truncate ( Gasteruption varipes ); lateral lobes of mesoscutum usually less sculptured than middle lobe; propodeum sculptured, medio-longitudinal carina or elevation distinct or indistinct.

Legs. Trochantellus only present on hind leg, but usually incompletely differentiated; hind trochanter with oblique subapical groove; hind tibia clavate.

Wings. Fore wing (Fig. 1B): jugal lobe absent, vein r-m absent; discal cell generally present (rarely absent, see Fig 271), formed by junction of 1-SR+M, 1-CU, 2-CU and 1m-cu, vein 1-SR+M arising from junction of M+CU1 and 1-SR; basal third of vein 2-M tubular and remainder only pigmented. Hind wing with 3-4 hamuli; vein M+CU, 1-CU and r-m usually partly visible.

Metasoma. Metasoma inserted very high on propodeum; first metasomal tergite ventrally almost closed, concealing most of first sternum, except posteriorly; second tergite immovably joined to first tergite and widely open ventrally; female hypopygium with a deep slit-like Y-shaped or a shallow V-shaped notch; ovipositor from shorter than metasoma to longer than body length, apex of ovipositor sheath black, dark brown, pale yellow, ivory or white.

Key to species of the genus Gasteruption Latreille from China