Hemiptarsenus longjiangensis, Fan & Li, 2022

Fan, Jun-Jie & Li, Cheng-De, 2022, Two new species of Hemiptarsenus Westwood (Hymenoptera, Eulophidae) from China, with a key to Chinese species, ZooKeys 1103, pp. 45-56 : 45

Hemiptarsenus longjiangensis sp. nov.

Figs 9 , 10-15

Type material.

Holotype, ♀ [NEFU; on card], China, Heilongjiang Province, Yichun City, Dailing District, Liangshui National Nature Reserve, 30-31.VIII. 2019, Wen-Jian Li, Ting-Ting Zhao and Shu-Chen Deng, by yellow-pan trapping. Paratypes: 1♀ [on slide], China, Heilongjiang Province, Shangzhi City, Maoershan Town, 9.VII.2015, Ye Chen and Chao Zhang, by sweeping; 2♀ [on cards], China, Heilongjiang Province, Yichun City, Dailing District, Liangshui National Nature Reserve, 1.VIII.2015, Si-Zhu Li, Xin-Yu Zhang and Xing-Yue Jin, by sweeping.

Diagnosis.

Scape yellow with about apical 1/3 of dorsal surface dark brown, pedicel and flagellum dark brown. Metascutellum reticulate. Propodeum almost as long as length of mesoscutellum measured medially, strongly reticulate, median carina and plicae present. Gaster with a large, median, longitudinal, black patch from base to apex, margins of tergites 1-5 yellow. Metasoma almost as long as mesosoma.

Description.

Female. Length 1.9-2.1 mm (2.1 mm), fore wing length 1.8 mm. Head and mesosoma dark metallic green with greenish-blue to golden-green tinge. Eyes gray. Ocelli pale yellow. Antennae dark brown except scape yellow with about apical 1/3 of dorsal surface dark brown. Mandibles brownish with teeth brown. Petiole dark brown. Gaster with a large median longitudinal black patch in middle of dorsal surface from base to apex, margins of tergites 1-5 yellow. Legs yellowish with all trochanters yellowish white. Ovipositor black. Wings hyaline with veins yellowish brown.

Head (Fig. 11 ) 1.3-1.5 × (1.5 ×) as wide as high in frontal view and about 1.8-2.0 × (1.9 ×) as wide as long in dorsal view. Lower face and vertex transversely reticulate, frons weakly reticulate. POL 1.7-1.8 × (1.8 ×) OOL. Eyes with sparse, short pubescence. Malar sulcus present, malar space 0.26 × eye height. Each mandible with two large teeth at apex and three small teeth above large teeth. Distance between toruli 0.8 × diameter of torulus, 1.0 × distance from torulus to eye margin. Antennae (Fig. 12 ) with scape slender and cylindrical, 5.6-5.7 × (5.7 ×) as long as wide, extending far beyond vertex; pedicel 1.5-1.6 × (1.6 ×) as long as wide and scape 3.6-3.7 × (3.6 ×) as long as pedicel; funicle 4-segmented, F1 3.3-3.5 × (3.5 ×) as long as wide and 2.2 × as long as pedicel, F2 2.9-3.0 × (3.0 ×) as long as wide, F3 and F4 2.4-2.6 × (2.4 ×) and 1.8-2.1 × (1.8 ×) as long as wide respectively; clava 2-segmented, 2.5-2.6 × (2.5 ×) as long as wide, first clavomere 1.6-1.7 × (1.6 ×) as long as second.

Mesosoma (Figs 10 , 15 ) 1.8-2.0 × (2.0 ×) as long as wide. Pronotum shorter than mesoscutum, reticulate. Notauli inconspicuous. Mesoscutum strongly reticulate, midlobe of mesoscutum with three pairs of long setae. Axillae reticulate and separate from each other. Mesoscutellum almost as long as wide, shorter than mesoscutum, strongly reticulate with two pairs of long setae. Metascutellum reticulate. Propodeum almost as long as length of mesoscutellum measured medially, strongly reticulate, median carina and plicae present; spiracle separated from metanotum by a distance longer than diameter of spiracle; each propodeal callus with nine setae. Prepectus with coarse reticulate sculpture. Metacoxa reticulate on dorsal surface.

Wings. Fore wing (Fig. 13 ) 2.7-2.9 × (2.8 ×) as long as wide. Costal cell 15.4-16.0 × (16.0 ×) as long as wide. SMV with 10 setae on dorsal surface. Cubital vein straight at base. Speculum small, closed posteriorly. MV 1.3-1.4 × (1.3 ×) as long as PMV; PMV 1.9-2.0 × (1.9 ×) as long as STV. Hind wing (Fig. 14 ) about 5.7-2.9 × (5.9 ×) as long as wide.

Metasoma (Fig. 10 ) almost as long as mesosoma. Petiole short, transverse, about 0.5 × as long as wide in dorsal view. Gaster ovate, 1.5-1.6 × (1.5 ×) as long as wide. Ovipositor exserted beyond apex of gaster.

Male. Unknown.

Host.

Unknown.

Distribution.

China (Heilongjiang).

Etymology.

The specific epithet refers to Heilongjiang Province where the type locality is located.

Figures

Figure 9. Hemiptarsenus longjiangensis sp. nov., female, holotype, habitus in lateral view. Scale bar: 100 μm.

Figures 10 - 15. Hemiptarsenus longjiangensis sp. nov., female, holotype (10 - 14), paratype (15) 10 habitus in dorsal view 11 head in frontal view 12 antenna 13 fore wing 14 hind wing 15 mesosoma in dorsal view. Scale bars: 100 μm.