Orientoglypta absenta Gong & Chen, 2025

Gong, Jiabao, Zhu, Jiachen, Tang, Pu, Wu, Qiong, van Achterberg, Cornelis & Chen, Xuexin, 2025, The genus Orientoglypta Kuslitzky, 1973 (Ichneumonidae, Banchinae) from China with descriptions of four new species, Biodiversity Data Journal 13, pp. e 174852-e 174852 : e174852-

Orientoglypta absenta Gong & Chen sp. nov.

Materials

Type status: Holotype. Occurrence: catalogNumber: No. 937263 (ZJUH) ; recordedBy: Songlin Yao; sex: female; occurrenceID: DF9FE75F-7141-5A27-BBBD-A1867BB07C62; Location: country: China; stateProvince: Guizhou; locality: Fanjing Mountain ; Event: verbatimEventDate: 11. Ⅶ. 1983; Record Level: basisOfRecord: PreservedSpecimen

Type status: Paratype. Occurrence: catalogNumber: Nos. 936691, 936786, 937202, 937215, 937216, 937232 (ZJUH) ; recordedBy: Songlin Yao and Xuexin Chen; sex: 6 females; occurrenceID: 55D83F73-C38E-5016-AF24-F94662904EDA; Location: country: China; stateProvince: Guizhou; locality: Fanjing Mountain ; Event: verbatimEventDate: 11–12. Ⅶ. 1983; Record Level: basisOfRecord: PreservedSpecimen

Description

Female. Body slender, its length 6.5–7.0 mm. Fore wing length 5.3–5.8 mm.

Head 0.7 times as long as wide; clypeus 0.6–0.7 times as long as wide. Anterior tentorial pit small. Face shallowly punctate, slightly convex medially, 0.6 times as long as wide. MSL 0.6 times as long as BWM. Frons narrowly smooth above antennal sockets, punctate upper 0.6. OOL 1.1–1.4 times as long as OD; IOD 0.8–0.9 times as long as OD; interocellar area without pit. Vertex and gena shiny and with a few punctures. Occipital carina distinct dorsally, slightly angled in dorsal part. Antenna with 35 flagellomeres. F 1 1.9–2.1 times longer than F 2.

Mesosoma punctate. Lateral area of pronotum largely smooth in ventral part (Fig. 3 F). Distal abscissa of vein CU of hind wing absent (Fig. 3 B). Anterior projection of submetapleural carina rounded at posterior angle. Posterior transverse carina, pleural carina and anterior transverse carina of propodeum complete (Fig. 3 C). Area basalis of propodeum rough (Fig. 3 C). Punctures on propodeal area superomedia sparser than on area externa and area dentipara (Fig. 3 C). Latero-median longitudinal carina on propodeum present, its part between anterior and posterior transverse carinae of propodeum complete. Latero-longitudinal carina on propodeum partly present. Hind femur 4.8–5.1 times as long as maximum width in lateral view. Hind tibia 7.0–7.9 times as long as maximum width in lateral view. Hind basitarsus 1.8–1.9 times as long as second hind tarsal segment.

Metasoma. Metasomal tergite 1 sparsely punctate, except for anterior and posterior parts smooth and inner area between latero-median carinae with sparse punctures (Fig. 3 G). Metasomal tergites 2–4 shallowly punctate, except for posterior margins and posterior half part of tergite 4 (Fig. 3 D). Oblique grooves on metasomal tergites 2–4 moderately impressed (Fig. 3 D). Metasomal tergite 1 1.6–1.8 times as long as maximum width, latero-median carina present. Metasomal tergite 2 1.0–1.1 times as long as maximum width. Metasomal tergites 2 and 3 each without a pair of short latero-longitudinal keels. Ovipositor sheath 1.8–1.9 times as long as hind tibia.

Colour. Body (excluding wings and legs) black, except for: clypeus, mandible, except tip, palpi, scape and pedicel outer spot, pronotum collar, membranous part of sternites, yellow; anterior margin of lateral area of pronotum, yellowish-brown; antenna, except for yellow outer spot of scape and pedicel, brown; small spot of pronotum before tegula, tegula and ovipositor, yellowish-brown; posterior margin of metasomal tergites medially 1–5 reddish-brown. Wings membrane hyaline; veins and pterostigma brown. Legs yellow, except for apex of hind tibia dark brown.

Male. Unknown.

Diagnosis

Distal abscissa of vein CU of hind wing absent (Fig. 3 B). Metasomal tergites without distinct yellow or brownish bands, but posterior margins smooth medially and with reddish-brown metallic lustre (Fig. 3 D).

Etymology

Named after the absent distal abscissa of vein CU of the hind wing, “ absens ” is Latin for absent.

Distribution

China ( Guizhou).

Biology

Unknown.

Notes

This species resembles O. laevis , but it can be distinguished by the following character states: posterior margins of metasomal tergites smooth medially and with reddish-brown metallic lustre (metasomal tergites black, without reddish-brown metallic lustre in O. laevis ); area between latero-median carinae of tergites 1 with sparse punctures (area between latero-median carinae of tergites 1 without punctures, smooth in O. laevis ); pronotal collar and anterior margin of lateral area of pronotum yellowish-brown (pronotal collar and lateral area of pronotum black in O. laevis ); punctures on propodeal area superomedia sparser than on area externa and area dentipara (punctures on propodeal area superomedia as dense as area externa and second area dentipara in O. laevis ).

Figures

Figure 3. Orientoglypta absenta sp. nov., ♀, holotype. A Habitus, lateral aspect; B hind wing; C propodeum, dorsal aspect; D metasoma, dorsal aspect; E collar, dorsal aspect; F pronotum, lateral aspect; G first metasomal tergite, dorsal aspect. Scale bars: 1 mm (A); 0.5 mm (B – G).