Estudos taxionômicos e biológicos sôbre buprestídeos minadores do gênero Pachyschelus solier, 1833, com a descrição de uma espécie nova (Insecta, Coleoptera)

This paper deals with two Brazilian species of the genus Pachyschelus Sol., namely: P. urvillege sp. n. and P. mimus Obenberger, 1925. P. urvillege sp. n. is described based on specimens reared from leafmined Urvillea glabra Cam. (Sapindaceae); it seems to be related to P. vanrooni Obenb., 1923, from which it can be distinguished by the absence of sexual dichroism, structural details of female pygidium and, as supposed, by the male genitalia (still unknown in P. vanrooni). P. mimus Obenberger, 1925, was reared from Psidium araça Raddi (Myrtaceae), and the male allotype is described. Oviposition, larval cephalic capsules and mines of both species are described, as well as other developmental stages of P. urvilleae. Some larvae of the latter were found parasitized by Tetrastichus sp.

Contribuição ao conhecimento da tribu Ormiini. III: gênero Euphasiopteryx Townsend, 1915 (Diptera, Tachinidae)

This is a contribution to the knowledge of the Tribu Ormiini in wich the author presents redescriptions of euphasiopteryx depleta (Wiedemann, 1830), Euphasiopteryx ochracea (Bigot, 1888) and describes a new species: Euphasiopteryx rosenoi sp. n. from Brazil.

Notas sôbre o gênero Colobogaster Solier, 1833, com a descrição de duas novas espécies da Região Amazônica: (Coleoptera, Buprestidae)

The study of materials belonging to several brazilian collections led us discover 2 new species of the genus Colobogaster which are here described. C. seabrai sp. n. seems to be related to C. puncticollis Waterhouse, 1882, from which it can be distinguished by: a) apical alitral tooth placed suturally, b) pronotum with 3 pairs of depressions, the 1st. pair transversal and conigous to the 2nd one, c) elitral suture brilliantgreen coloured but not the marginal edge, d) front without a horse-shoe shaped structure, e) pronotum with the discal region concolor. The structures of pronotum, the elitral and pronotal colour paterns and the genial morphology separate this one from other species of the genus. C. paraensis sp. n. is closely related to C. cupricollis Kerremans, 1897, but it is distinguished by the absence of depressions on the pronotum, by the elitral tooth placed suturally, by the abscence of humeral rip and by the general colour. Eleven other species were studied and their apical segment of the abdomen and scutellum were illustrated. It was also established the synonymy of C. ecuadoricus Obengerger, 1926.