Tarasco costata Barbalho & Scatolini, 2004

Barbalho, Sandra M., Scatolini, Denise & Penteado- Dias, Angélica M., 2004, Redefinition of genus Tarasco Marsh (Hymenoptera: Braconidae: Doryctinae) and description of two new Brazilian species, Zootaxa 411 (1), pp. 1-6 : 4-5

Tarasco costata Barbalho & Scatolini , new species

( Figs 4–6 )

Female. Color. Head honey yellow; ocelli black; compound eyes brown; mandibles yellow with black tips; antenna yellowish brown on basal 2/3 and pale yellow on apical third; palpi pale yellow; most part of mesosoma, first, second and third metasomal terga honey yellow to orange, remaining terga brown; venter of metasoma yellow to light brown; propodeum dark brown to black; ovipositor and sheaths light brown with dark tips;fore and middle legs yellow, hind leg brownish yellow; wings infuscated, fore wing banded; stigma brown with pale spot at base; veins light brown, tegula honey yellow. Body length: 3.0 mm. Head. Face striate; vertex granulate and weakly striate in median region; frons granulate; malar space striate; face width 1.6x eye width; face height 1.4x eye height; length of malar space about equal to oral opening and 1/3 compound eye height; distance between two lateral ocelli 1/3 the diameter of them; ocellocular distance two times the diameter of lateral ocellus; antenna with more than 29 antennomeres; first flagellomere about equal in length with scape+pedicel. Mesosoma: prothorax laterally, lateral portion of mesoscutum lobes, dorsal part of mesopleuron ( Fig. 4 ), propodeum ( Fig. 5 ) and hind coxae dorsally costate; mesonotum strongly declivous anteriorly; sternaulus scrobiculate; legs granulate; hind coxa with a short basal tubercle; hind femur swollen, 3.0x as long as wide. Wings ( Fig. 6 ): fore wing vein r­m present, but not tubular; vein m­cu arising interstitial with vein 2RS; r vein shorter than half of 3RS; hind wing vein SC+R present and tubular and RS, M and m­cu present, but spectral. Metasoma: first tergum costate, long and narrow, parallel sided until apex where is suddenly broads; second and third terga mainly finely striate, line between terga weak or absent; remaining terga smooth and shinning. Ovipositor longer than metasoma.

Male. Unknown.

Holotype female. BRAZIL. Para, Jacareacanga, October, 1959. Deposited in MPEG.

Biology. Unknown.

Etymology. The name of the species refers to the deep sculpturing on the propodeum.

Figures

FIGURES 1–6. 1–3: Tarasco granulata sp nov.: 1, wings; 2, propodeum; 3, metasoma. 4–6: T. costata sp nov., 4, part of mesosoma; 5, propodeum; 6, wings.