Heterospilus cressoni 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 : 57-58

Heterospilus cressoni Marsh sp. n. Figure 33

Female.

Body size: 3.5-4.0 mm. Color: head brown, face and eye orbits often lighter; scape and pedicel yellow, flagellum brown with apical 4-6 flagellomeres white; mesosoma brown, propodeum and mesopleuron dorsally dark brown; first metasomal tergum brown, second tergum brown medially and laterally with yellow longitudinal stripes laterally, third tergum yellow basally and medially, brown laterally, terga 4-6 yellow with anterior and posterior borders and laterally brown; wing vein brown, stigma brown with extreme base often yellow; legs with coxae and trochanters yellow, femora yellow on basal 1/4, light brown on apical 3/4, tibiae and tarsi brown. Head: vertex transversely striate, smooth near occipital carina; frons striate; temple smooth; face rugose-striate; temple in dorsal view bulging, about 1/2 eye width; malar space about 1/3 eye height; 26-31 flagellomeres. Mesosoma: mesoscutal lobes striate-granulate, middle lobe with median longitudinal raised line; notauli scrobiculate, meeting at prescutellar furrow in wide rectangular rugose area; mesopleuron smooth; precoxal sulcus smooth, about 1/2 width of mesopleuron; scutellum smooth; prescutellar furrow with 3-5 cross carinae; venter of mesopleuron smooth; propodeum nearly entirely rugose dorsally and laterally, without margined basal median areas or areola, small smooth basal median areas present. Wings: fore wing vein r 1/3 length vein 3RSa, vein 1cu-a distinctly beyond vein 1M; hind wing vein SC+R present, vein M+CU shorter than vein 1M. Metasoma: first tergum length equal to or slightly less than apical width, longitudinally costate-rugose medially, longitudinally costate laterally, granulate between costae; second tergum apical width less than 3 times median length, longitudinally costate, granulate between costae; anterior and posterior transverse groove distinct, anterior groove slightly sinuate; third tergum longitudinally costate between transverse grooves, smooth beyond posterior transverse groove; terga 4-6 smooth; ovipositor equal to or slightly longer than metasoma.

Holotype female.

Top label (white, partially printed and hand written) - Costa Rica: Guanacaste [;] Santa Rosa Natl. Park [;] 300m. ex. Malaise trap [;] Site # BH-12-C [;] Dates: 6-27.ix.1986 [;] I. D. Gauld & D. Janzen; second label (white printed) - [BH] Bosque Humedo [;] mature evergreen dry forest [;] [C] more or less fully [;] shaded as possible; third label (red, partially printed and hand written) - HOLOTYPE [;] Heterospilus [;] cressoni [;] P. Marsh. Deposited in ESUW.

Paratypes.

2 ♀♀, same data as holotype except site # of H-4-C and dates of 23.iii - 13.iv.1986 and 4-24.v.1986 (ESUW). 1 ♀, Sirena, Osa Pen. [;] VII.77 Cos. Rica [;] D. H. Janzen (AEIC).

Comments.

This species is distinctive by the transversely costate mesoscutal lobes.

Etymology.

This species is named for E. T. Cresson who described many braconids during the late 1800s.