Heterospilus foersteri Marsh

Marsh, Paul M., Wild, Alexander L. & Whitfield, James B., 2013, The Doryctinae (Braconidae) of Costa Rica: genera and species of the tribe Heterospilini, ZooKeys 347, pp. 1-474 : 69-70

Heterospilus foersteri Marsh sp. n. Figure 43

Female.

Body size: 3.0-4.0 mm. Color: body entirely dark brown, metasomal terga 4-7 usually lighter brown, face and eye orbits occasionally yellow; scape yellow, without lateral longitudinal brown stripe, flagellum brown; legs yellow, femora light brown on apical half; wing veins brown, stigma brown. Head: vertex transversely costate; frons transversely costate; face striate; temple in dorsal view broad, slightly bulging, width greater than 1/2 eye width; malar space greater than 1/4 eye height; ocell-ocular distance nearly 3 times diameter of lateral ocellus; 23-29 flagellomeres. Mesosoma: mesoscutal lobes granulate; notauli scrobiculate, meeting at scutellum in triangular costate area; scutellum smooth; prescutellar furrow with one cross carinae, rarely with weak carinae on each side; mesopleuron smooth; precoxal sulcus smooth or weakly scrobiculate, shorter than mesopleuron; venter smooth; propodeum with basal median areas distinctly margined, granulate, rugose along apical carina, basal median carina distinct, areola not 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 shorter than vein 1M. Metasoma: first tergum length slightly greater than apical width, longitudinally costate-granulate; second tergum costate-granulate, width less than 3 times length; anterior transverse groove present, straight; posterior transverse groove present; third tergum costate at base, smooth apically; terga 4-7 smooth; ovipositor longer than metasoma.

Holotype female.

Top label (white, printed) - Costa Rica: Puntarenas [;] Golfo Dulce. 24km w. [;] Piedras Blancas, 200m [;] xii.1991. Paul Hanson; second label (red, partially printed and hand written) - HOLOTYPE [;] Heterospilus [;] foersteri [;] P. Marsh. Deposited in ESUW.

Paratypes.

1 ♀, same data as holotype except date of ii.1993 (ESUW). 1 ♀, top label - Costa Rica: Guanacaste [;] Santa Rosa Natl. Park [;] 300m. ex. Malaise trap [;] Site #: (blank) [;] Dates: 2-23.iii.1986 [;] I.D. Gauld & D. Janzen; second label - [SE] Bosque San Emilio [;] 50yr old deciduous forest [;] [O] in clearing, fully [;] isolated part of day (ESUW). 1 ♀, top label - Costa Rica: Guanacaste [;] Santa Rosa Natl. Park [;] 300m. ex. Malaise trap [;] Site #: (blank) [;] Dates: 18. i– 8.ii.1986 [;] I.D. Gauld & D. Janzen; second label - [SE] Bosque San Emilio [;] 50yr old deciduous forest [;] [C] more or less fully [;] shaded as possible (ESUW).

Comments.

The dark brown body, single cross carina in prescutellar groove, and the granulate basal median areas of the propodeum are characteristic for this species.

Etymology.

Named for A. Foerster who presented the first subfamily classification of the Braconidae .