Project 551: Santos, B. F., A. P. Aguiar, A. M. Tedesco. 2012. Trigonalidae (Hymenoptera) from cacao agroforestry systems in northeastern Brazil, with two new species of Trigonalys Westwood. Journal of Hymenoptera Research. 25:19-34.
AbstractA survey of Trigonalidae from cacao (Theobroma cacao L.) agroforestry systems in southern Bahia, northeastern Brazil, is conducted. A total of 65 specimens were studied, and three species are recognized. Trigonalys melanoleuca Westwood is diagnosed and illustrated. Two new species are described and illustrated. Trigonalys erythrocephala sp. n. has most of head reddish brown; metasomal armature in sternum III conspicuous, Y-shaped; supra-antennal elevation conspicuous; hind coxa with sharp lateral angles, its dorsomesal portion strigate; legs entirely dark brown; and fore wing lightly infuscate, darker towards anterior margin. Trigonalys gotica sp. n. with body blackish or dark brown and has pale yellow marks; mesopleuron with an oblique mark; female armature absent; frons and vertex punctate-areolate; supra-antennal elevation subtle; propodeal foramen V-shaped; and fore wing vein M arising distinctly basad to 1cu-a.
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MorphoBank Project 551
MorphoBank Project 551
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