Neohybrizon Hisasue & Konishi, 2019

Hisasue, Yu & Konishi, Kazuhiko, 2019, A new genus of the subfamily Hybrizontinae (Hymenoptera: Ichneumonidae) from Japan, Zootaxa 4664 (2), pp. 241-250 : 242-243

Neohybrizon Hisasue & Konishi , gen. nov.

Type species. Neohybrizon mutus Hisasue & Konishi , sp. nov.

Description. Head wider than high; face with median longitudinal convexity and with a short longitudinal ridge on dorso-median portion; face smooth except on median longitudinal convexity granulate; occiput and interocular area polished; occipital carina strong; anterior tentorial pit large and deep; clypeus very narrow, apical portion of clypeus 0.2–0.4 × as wide as minimum interocular distance, with some longitudinal striae, apical margin rounded; apical margins of malar space depressed,with carina; mouth parts much reduced; mandible absent; area of surrounded by hypostomal carina elliptic; maxillary palpus reduced to 1 segment; labial palpus disappeared; antenna with 11 flagellomeres ( Fig. 8 ); scape about as long as pedicel or somewhat shorter, F1 relatively slender.

Mesosoma polished; anterior margin of pronotum with transverse groove, and with ventral margin rounded; mesoscutum longer than wide except marginal rim, highly elevated and narrowed anteriorly; marginal rim of mesoscutum lamellate; posterocentral area of mesoscutum depressed; epicnemial carina absent; mesopleural fovea elongate to median portion of mesopleuron and rugose; sternalus absent; propodeal spiracle elliptic.

Fore wing 3.4–4.7 mm, and entirely covered with dense hairs; stigma slender; M+CU non-tubular except apical area; RS almost straight, apical 4/5 slightly curved; M entirely straight; RS+M very short; 2r&RS short; 1m-cu&M longer than first abscissa of CU; distal abscissa of CU straight, apical 1/4 non-tubular; M+CU present only apical portion. Hind wing slender; veins non-tubular except R.

Legs with weak and dense hairs; femora clavate. Hind coxa 1.9–2.7 × as long as trochanter; femur long; basitarsus shorter than following tarsomeres combined; 2–5 tarsal segments weakly flattened; 4th tarsomere longer than 5th tarsomere; maximum width of 4th tarsomere wider than maximum width of 5th tarsus.

Metasoma slender; T1–T4 depressed, smooth and hairless except apical and lateral marginal areas with sparse hairs; T1 polished, 3.2–4.3 × as long as apical width; T2 longer than T1, and its apical width; T5–T7 compressed, and covered with dense hairs; ovipositor tapering toward apex; ovipositor sheath, lateral and dorsal area with dense hairs.

Etymology. The genus name is from the Greek neo (new) + hybrizon (the type genus of the subfamily, Hybrizon ), named after the possession of many derived character states.

Figures

FIGURES 4–8. Neohybrizon mutus sp. nov.: 4, lateral habitus of female; 5, ditto male; 6, head of female in posterior view; 7, head of male in frontal view; 8, antenna of female. Scales: 4–5, 8, 1.0 mm; 6–7, 0.5 mm.