Apsilocera obtusicristata 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 : 465-466

Apsilocera obtusicristata Mitroiu & van Achterberg, sp. n.

( Figs 10 , 28 )

Type material. Holotype, ♀ (RMNH), “S. VIETNAM: Dak Lak, Chu Yang Sin N.P., nr dam, 840–940 m, 2– 10.vi.2007, Mal. traps, C. v. Achterberg & R. de Vries, RMNH’07”.

Diagnosis. Head slightly transverse in anterior view, with one discontinuous crest composed of blunt teeth running between the posterior ocelli and the anterior one; clypeal margin straight and narrow; each funicular segment with one row of sensilla; clava brown ( Fig. 28 ); distal tooth of mandible sharp. Mesosoma slightly arched; fore coxa mainly dark, mid coxa yellow, slightly infuscated, hind coxa almost entirely dark dorsally; fore wing hyaline ( Fig. 10 ). Metasoma dorsally brown except small pale basal depression ( Fig. 10 ).

Description. Holotype female, body length: 1.75 mm. Colour ( Fig. 10 ): head black, with slight bluish metallic reflections in anterior part and olive green reflections dorsally; eyes reddish, ocelli whitish; scape light yellow, slightly darker in distal third; pedicel and flagellum light brown, pedicel lighter ventrally; mandible reddish-brown, teeth darker. Mesosoma black, with olive green reflections except bluish propodeum; wings hyaline; tegula reddish-brown, venation brown; fore coxa mainly dark, mid coxa yellow, slightly infuscated, hind coxa almost entirely dark dorsally; trochanters, tibiae and tarsi pale yellow, tarsal tips brownish; femora yellow. Metasoma dorsally brown, hind margin of tergites slightly darker; lateral and ventral sides of metasoma slightly lighter; ovipositor sheaths brown.

Head slightly transverse in anterior view, with one discontinuous crest composed of blunt teeth running between the posterior ocelli and the anterior one; clypeal margin straight and narrow; gena moderately receding towards mouth, not hollowed at mouth corner ( Fig. 28 ); temple virtually absent; occiput straight; each funicular segment with one row of sensilla ( Fig. 28 ); distal tooth of mandible sharp.Relative measurements—length: 18; width: 40; height: 35; POL: 8; OOL: 8; eye height: 19; eye length: 13; malar space: 10; mouth width: 18; distance between clypeal margin and toruli: 23; scape length: 19; pedicel length: 4; pedicel width: 3; pedicel plus flagellum: 46; F1 length: 5; F1 width: 4.5; F6 length: 5; F6 width: 4; clava length: 12; clava width: 5.

Mesosoma slightly arched ( Fig. 10 ); propodeum finely reticulate, alveoli very small; fore wing with basal cell bare, open below; basal vein pilose; ventral side of costal cell with one complete row of hairs and an additional row in distal half; speculum barely reaching proximal end of M; stigma elongated ( Fig. 10 ). Relative measurementslength: 40; width: 31; height: 25; mesoscutum length: 18; scutellum length: 15; scutellum width: 15; fore wing length: 92; fore wing width: 42; M: 20; S: 10; P: 23.

Metasoma short ovate ( Fig. 10 ); basal tergite with small depression at base; ovipositor sheaths not visible in dorsal view. Relative measurements—length: 48; width: 33; length of first tergite: 13; distance from base of metasoma to tip of hypopygium: 15.

Distribution. Vietnam.

Hosts. Unknown.

Etymology. The name derives from the Latin words “ obtusus ” (blunt) and “ cristatus ” (crested), and refers to the shape of the head crest, which consists of blunt teeth.

Comments. See A. longicornis .

Figures

FIGURES 7 – 12. Apsilocera spp., female, holotype, lateral view. 7 A. fulvipennis; 8 A. longicornis; 9 A. maculata; 10 A. obtusicristata; 11 A. palliclava; 12 A. tuberculata.

FIGURES 25 – 30. Apsilocera spp., female, holotype, head in anterior view. 25 A. fulvipennis; 26 A. longicornis; 27 A. maculata; 28 A. obtusicristata; 29 A. palliclava; 30 A. tuberculata.