Orientoglypta laevis Gong & Chen sp. nov.

Materials

Type status: Holotype. Occurrence: catalogNumber: No. 202503614 (ZJUH); recordedBy: Tingting Zhang; sex: female; occurrenceID: FC3020ED-E7DE-5A82-A5C0-B48E78A094DD; Location: country: China; stateProvince: Xizang; locality: Zhamo Road of Motuo; verbatimCoordinates: 29.635 N, 95.488 E; Event: verbatimEventDate: 26. Ⅶ. 2018; Record Level: basisOfRecord: PreservedSpecimen

Type status: Paratype. Occurrence: catalogNumber: No. 202503612 (ZJUH); recordedBy: Yang Li; sex: female; occurrenceID: 4ACD5535-2D1A-5954-BEAE-6F685B8AB1B3; Location: country: China; stateProvince: Xizang; locality: Yigong Tea Plantation of Nyingchi; Event: verbatimEventDate: 5. Ⅷ. 2019; Record Level: basisOfRecord: PreservedSpecimen

Type status: Paratype. Occurrence: catalogNumber: No. 202503613 (ZJUH); occurrenceID: 6332FEB2-D14D-51AA-AF26-699C91D22D0B; Location: country: China; stateProvince: Xizang; locality: Tongjia village, Yigong, Nyingchi; Event: samplingProtocol: Yellow Pan Trap; verbatimEventDate: 6. Ⅷ. 2019; Record Level: basisOfRecord: PreservedSpecimen

Description

Female. Body slender, its length 6.6–7.4 mm. Fore wing length 5.2–5.4 mm.

Head 0.7–0.8 times as long as wide; clypeus 0.5–0.6 times as long as wide. Anterior tentorial pit small. Face punctate, convex medially, 0.8–0.9 times as long as wide. MSL 0.7–0.8 times as long as BWM. Frons narrowly smooth above antennal sockets, punctate upper 0.7. OOL 1.3–1.5 times as long as OD; IOD 0.7–0.9 times as long as OD; interocellar area without pit. Vertex punctate; gena smooth coverd with sparse punctures. Occipital carina distinct dorsally, almost roundly arched in dorsal part, usually slightly reduced medially. Antenna with 36–37 flagellomeres. F 1 2.0–2.2 times as long as F 2.

Mesosoma punctate. Lateral area of pronotum largely smooth in ventral part (Fig. 2 F). Anterior projection of submetapleural carina strongly angulate at posterior angle. Distal abscissa of vein CU of hind wing present (Fig. 2 B). Posterior transverse carina, pleural carina and anterior transverse carina of propodeum complete (Fig. 2 C). Area basalis of propodeum rough (Fig. 2 C). Punctures on propodeal area superomedia as dense as area externa and area dentipara (Fig. 2 C). Latero-median longitudinal carinae of propodeum present, its part between anterior and posterior transverse carinae of propodeum weaker than part before anterior transverse carina (Fig. 2 C). Latero-longitudinal carina on propodeum partly present. Hind femur 5.7–6.2 times as long as maximum width in lateral view. Hind tibia 8.1–9.3 times as long as maximum width in lateral view. Hind basitarsus 2.1–2.3 times as long as second hind tarsal segment.

Metasoma. Metasomal tergite 1 sparsely punctate, except for smooth area between latero-median carinae (Fig. 2 G). Metasomal tergites 2–4 densely punctate, except for middle part of posterior margin and posterior half of tergite 4 (Fig. 2 D). Oblique grooves on metasomal tergites 2–4 moderately impressed (Fig. 2 D). Metasomal tergite 1 1.8–2.0 times as long as maximum width, latero-median carina present and inner area between latero-median carinae smooth (Fig. 2 G). Metasomal tergite 2 1.2 times as long as maximum width. Metasomal tergites 2 and 3 each without a pair of short latero-longitudinal keels. Ovipositor sheath 1.6 times as long as hind tibia.

Colour. Body (excluding wings and legs) black, except for: clypeus, mandible, except for dark brown tip, scape and pedicel anteriorly and subgenital plate, brown; palpi and membranous part of sternites whitish-yellow; ovipositor yellowish-brown. Wings membrane hyaline; veins, pterostigma and wing base brown. Legs yellowish-brown, except for: fore and mid coxae and trochanters whitish-yellow; apex of hind tibia dark brown.

Male. Unknown.

Diagnosis

Metasomal tergites without distinct yellow or brownish bands, whole body black (Fig. 2 D). Area between latero-median carinae of tergite 1 smooth, without punctures (Fig. 2 G). Pronotal collar and anterior margin of lateral area of pronotum black (Fig. 2 F). Punctures on propodeum area superomedia as dense as area externa and area dentipara (Fig. 2 C).

Etymology

Named after the smooth area between the latero-median carinae of metasomal tergite 1, '' laevis '' is Latin for smooth.

Distribution

China (Xizang).

Biology

Unknown.

Notes

This species resembles O. aditiae and O. absenta, but it can be distinguished by the following character states: latero-median carina of metasomal tergite 1 distinct and reaching posterior margin (latero-median carina of metasomal tergite 1 indistinct in O. aditiae); pronotum matt dorsally (pronotum shiny dorsally in O. aditiae); posterior transverse carina, pleural carina and anterior transverse carina of propodeum complete and distinct (propodeum with only the posterior transverse carina present in O. aditiae). Its differences from O. absenta are described below.