Diglyphomorphomyia depressa, Fan & Li, 2022

Fan, Jun-Jie & Li, Cheng-De, 2022, Four new species of Diglyphomorphomyia Girault (Hymenoptera, Eulophidae) from China, with a key to Chinese species, ZooKeys 1095, pp. 111-121 : 111

Diglyphomorphomyia depressa sp. nov.

Figs 1-4

Type material.

Holotype, ♀ [NEFU; on card], China, Sichuan Province, Guangyuan City, Qingchuan County, 21 VIII 2015, leg. Ye Chen and Chao Zhang, by sweeping. Paratypes: 2♀ [on slides], China, Liaoning Province, Anshan City, Tiedong District, Gudaoguan, 19-21 VI 2015, leg. Yan Gao and Hui Geng, by yellow pan trapping.

Diagnosis.

Head dark brown. Antennae yellowish except F3, F4 brownish, club brownish except yellowish apex. Mesosoma yellow except propodeum brown. Midlobe of mesoscutum with two pairs of long setae. Scutellum with a longitudinal depression in anterior 2/3.

Description.

Female. Body length 2.4 mm, fore wing length 1.7 mm. Head dark brown. Antennae yellowish with F3 and F4 brownish, club brownish except yellowish apex. Mesoscutum, axillae and scutellum yellow. Propodeum brown. Legs yellowish. Gaster mostly yellow with two brown transverse bands posteriorly and margins brown. Ovipositor black.

Head (Fig. 2 ) 1.2 × as wide as high in frontal view and ~ 2.2 × as wide as long in dorsal view. Lower face smooth, frons weakly reticulate. Vertex with engraved reticulation, meshes isodiametric, and scattered setae. POL 1.8 × OOL. Malar space 0.4 × eye height. Occiput weakly reticulate. Relative measurements (length: width): scape = 28: 5; pedicel = 10: 5; F1 = 16: 5; F2 = 11: 5; F3 = 12: 7; F4 = 10: 7; clava = 16: 7.

Mesosoma (Fig. 1 ). Midlobe of mesoscutum punctate with two pairs of long setae, lateral lobe of mesoscutum reticulate. Notauli ending laterad to inner angles of axilla. Axillae weakly reticulate and separated from each other. Scutellum with a longitudinal depression in anterior 2/3 and two pairs of long setae, sublateral grooves meet posteriorly. Spiracle with a transverse carina anteriorly, separated from metanotum by a distance shorter than a diameter of spiracle; each propodeal callus with seven long setae.

Wings. Fore wing (Fig. 3 ) 2.3 × as long as wide. Speculum narrow. Relative measurements (length): SMV = 43; MV = 40; PMV = 22; STV = 16. Hind wing (Fig. 4 ) ~ 4.0 × as long as wide.

Metasoma (Fig. 1 ). Gaster ovate, 1.8 × as long as wide, and 1.1 × as long as mesosoma. Ovipositor exserted beyond apex of gaster.

Male. Unknown.

Host.

Unknown.

Distribution.

China (Sichuan, Liaoning).

Etymology.

Latin: depressum = depression, sink; and refers to the longitudinal depression in anterior 2/3 of scutellum.

Remarks.

This new species differs from all other known members of the genus in having a scutellum with a longitudinal depression on its anterior 2/3.

Figures

Figures 1 - 4. D. depressa sp. nov., female, holotype 1 habitus in dorsal view 2 head in frontal view 3 fore wing 4 hind wing. Scale bars: 100 μm.