Apsilocera dupla Mitroiu

Mitroiu, Mircea-Dan & Achterberg, Cornelis Van, 2013, Revision of the Oriental species of Apsilocera Bouček (Hymenoptera, Pteromalidae), with description of twelve new species, Zootaxa 3717 (4), pp. 448-468 : 461-462

Apsilocera dupla Mitroiu & van Achterberg, sp. n.

( Figs 5 , 23 )

Type material. Holotype, ♀ (RMNH), “N. VIETNAM: Hoa Binh, Hang Kia Pà Cò N.R., 1329 m, N20°44’36’’ E104°53’45’’, 2.iii–15.iv.2011, Mal. tr. 5, C. v. Achterberg, RMNH’11”. Paratypes (3 ♀, IEBR, RMNH): 1 ♀, “N. VIETNAM: Ninh Binh, Cuc Phuong N.P., nr centre, c 225 m, 1.xi–20.xii.1999 (I), Mai Phu Quy, RMNH’00”; 1 ♀ “S. VIETNAM: Dak Lak, Chu Yang Sin N.P., nr dam, c. 500 m, 3–9.vi.2007, Mal. traps, C. v. Achterberg & R. de Vries, RMNH’07”; 1 ♀, “ INDONESIA: N Ceram, 11 km E Wahai, nr PHPA-HQ, coastal rainforest, 2–20.iii.1997, Mal. trap 14, C. v. Achterberg & R. de Vries, RMNH’97”.

Diagnosis. Head very transverse in anterior view, without ornamentation; clypeal margin bidentate ( Fig. 23 ); each funicular segment with one row of sensilla; clava brown ( Fig. 5 ); mandible formula 4:4, distal tooth sharp ( Fig. 23 ). Mesosoma almost flattened; fore coxa mainly dark, mid and hind coxae pale yellow, the latter with a small dark spot basally; fore wing hyaline. Metasoma dorsally brown except small pale basal depression ( Fig. 5 ).

Description. Holotype female, body length: 2 mm. Colour ( Fig. 5 ): head black, with very slight blue-green reflections; eyes reddish, ocelli whitish; scape and pedicel reddish-brown, darker dorsally; flagellum light brown; mandible dark reddish-brown. Mesosoma as head, but with slight coppery reflections on pronotum, scutellum, axillae and axillulae; wings hyaline; tegula and venation brown; fore coxa mainly dark, mid and hind coxae pale yellow, the latter with a small dark spot basally; trochanters and tibiae pale yellow; femora and tarsi yellow, tips of the latter darker. Metasoma dorsally brown except small pale basal depression; hind margin of distal tergites slightly darker; lateral and ventral sides of metasoma extensively pale yellow basally; ovipositor sheaths brown.

Head very transverse in anterior view, without ornamentation; clypeal margin bidentate ( Fig. 23 ); each funicular segment with one row of sensilla ( Fig. 5 ); mandible formula 4:4, distal tooth sharp; gena strongly receding towards mouth, but not hollowed at mouth corner ( Fig. 23 ); temple virtually absent; occiput straight. Relative measurements—length: 18; width: 41; height: 28; POL: 10; OOL: 8; eye height: 17; eye length: 13; malar space: 9; mouth width: 17; distance between clypeal margin and toruli: 18; scape length: 17; pedicel length: 3.5; pedicel width: 2.5; pedicel plus flagellum: 47; F1 length: 4; F1 width: 4; F6 length: 5; F6 width: 4; clava length: 12; clava width: 4.5.

Mesosoma almost flattened ( Fig. 5 ); propodeum smooth; fore wing with basal cell bare, open below; basal vein irregularly pilose; ventral side of costal cell with one row of few hairs and a few additional hairs in distal third; speculum reaching parastigma; stigma not long, lower edge not emarginate ( Fig. 5 ). Relative measurementslength: 42; width: 31; height: 23; mesoscutum length: 16; scutellum length: 14; scutellum width: 15; propodeum length: 6; fore wing length: 100; fore wing width: 50; M: 24; S: 10; P: 26.

Metasoma ovate-acuminate ( Fig. 5 ); ovipositor sheaths clearly visible in dorsal view. Relative measurements—length: 60; width: 27; length of first tergite: 12; distance from base of metasoma to tip of hypopygium: 27.

Variability. In female paratypes the metasoma ranges from 1.4–1.7× as long as broad, the ovipositor sheaths varying from hardly visible to distinctly visible in dorsal view.

Distribution. Vietnam, Indonesia.

Hosts. Unknown.

Etymology. From the Latin “ duplus ” (double), which refers to the shape of the clypeal margin, which has two small teeth.

Comments. See A. maculata .

Figures

FIGURES 1 – 6. Apsilocera spp., female, holotype, lateral view. 1 A. acuticristata; 2 A. bicristata; 3 A. cornuta; 4 A. dentata; 5 A. dupla; 6 A. elongata.

FIGURES 19 – 24. Apsilocera spp., female, holotype, head in anterior view. 19 A. acuticristata; 20 A. bicristata; 21 A. cornuta; 22 A. dentata; 23 A. dupla; 24 A. elongata.