Heterospilus trienta Marsh sp. n. Figure 288

Female.

Body size: 3.0 mm. Color: head brown, mesosoma and metasoma dark brown; scape yellow without lateral brown stripe; flagellum brown; wing veins including stigma brown; legs yellow. Head: vertex smooth; frons smooth; face striate at least medially; temple in dorsal view narrow, sloping behind eye, width less than 1/2 eye width; malar space equal to 1/4 eye height; ocell-ocular distance greater than 2.5 times diameter of lateral ocellus; 22-23 flagellomeres. Mesosoma: mesoscutal lobes granulate; notauli scrobiculate, meeting posteriorly in wide rectangular costate-rugose area; scutellum weakly granulate or smooth; prescutellar furrow with 3-5 cross carinae; mesopleuron granulate, smooth just above precoxal sulcus; precoxal sulcus scrobiculate, shorter than mesopleuron; venter granulate; propodeum with basal median areas margined, granulate, basal median carina present, short, areola distinctly margined, areolar area rugose, lateral areas entirely rugose. Wings: fore wing vein r shorter than vein 3RSa, vein 1cu-a beyond vein 1M; hind wing vein SC+R present, vein M+CU slightly shorter than vein 1M. Metasoma: first tergum longitudinally costate, length equal to apical width; second tergum longitudinally costate; anterior transverse groove present, straight; posterior transverse groove present; third tergum costate basally, smooth apically; terga 4-7 smooth; ovipositor about 3/4 length of metasoma.

Holotype female.

Top label (white, printed) - Costa Rica: Puntarenas [;] Res. Forestal Golfo Dulce [;] 3km. SW Rincon, 10m [;] xii.1992, P. Hanson [;] Malaise, primary forest; second label (red, partially printed and hand written) - HOLOTYPE [;] Heterospilus [;] trienta [;] P. Marsh. Deposited in ESUW.

Paratypes.

2 ♀♀, Costa Rica: Puntarenas [;] San Vito, Las Cruces [;] Wilson Botanical Gardens [;] 18-22.iii.1990, 1150m [;] J.S. Noyes (ESUW).

Comments.

The rectangular costate-rugose area on the mesoscutum, the narrow temple and the striate face are distinctive for this species.

Etymology.

The specific name is an arbitrary combination of letters.