Contribuição ao conhecimento da sistemática e biologia de buprestídeos minadores do gênero Pachyschelus Solier, 1833: (Coleoptera, Buprestidae)

Abstract

<abstract language="eng">Buprestid leaf-miners are generally included in the subtribe Trachytes. The genera belonging to this subtribe are commonly very rich in number of species and their systematics envolves huge difficulties. On the other hand the biological knowledge on those insects is very poor. The A. tries to clarify the systematical status of two species of Pachyschelus - P. subundulatus Kerr. and P. fulgidipennis Lucas, and redescribes also P. binderi Obenberger. The hosts of the first two species are recorded, namely: Terminalia catappa (Combretaceae) - host-plant of P. subundulatus and Luhea spp. (Tiliaceae) - host-plant of P. fulgidipennis. The mines, developmental stages and habits of the three species are described and is made a full redescription of the adults, both male and female. The study is based on reared material from mined leaves, as well as insects assembled in several brazilian collections, both private and public ones. The importance of some biological facts as well as some morphological characters are stressed. The knowledge of the host-plants and the shape and other structural features of the mine were found to be helpfull to the identification of the species. Some morphological features of adults also prooved to be of systematical value. Besides the female pygidium and the male genitalia, the tibiae of the third pair of legs show some intersting structural details, reasonably alike in both sexes and quite different in each species

Distribution, survivorship and mortality sources in immature stages of the neotropical leaf miner Pachyschelus coeruleipennis Kerremans (Coleoptera: Buprestidae)

“…Although 70% of attacked leaves had only one egg of P. coeruleipennis, the mean density of immatures in the sample was not very low (20-40% of mined leaves), if compared with leaf-miner species from North America (e.g., Faeth, 1990). Similar low densities of immatures per leaf were observed for other Pachyschelus species in Brazil (Kogan, 1963(Kogan, , 1964. As a consequence, intraspecific competition was unimportant as a mortality cause in immature P. coeruleipennis.…”

“…Studies from temperate regions, however, have concentrated on lepidopteran leaf miners (see Hespenheide, 1991). Among beetle leafminers, buprestids have been studied several times (e.g., Kogan, 1963Kogan, , 1964Hespenheide & Kim, 1992;Story et al, 1979;Turnbow Jr. & Franklin, 1981;Connor, 1988). Pachyschelus species are neotropical in distribution and have been studied in Brazil by Kogan (1963;1964) and in Central America by Hespenheide & Kim (1992).…”

Oldest leaf mine trace fossil from East Asia provides insight into ancient nutritional flow in a plant–herbivore interaction

“…Notably, buprestid mines have some distinctive features that are comparable to those of the described mines. The buprestid mines are typically blotchy; they often are full-depth mines, avoiding epidermal and vascular tissues; the frass trails are generally long and stringy when freshly deposited, which later can be fragmented and become granular 58 , 80 – 83 .…”

Morphology of the adult and immatures of a striking new species of leaf-mining Brachys Dejean from Brazil (Buprestidae, Agrilinae)

“…This situation is even more critical concerning to Neotropical genera, the only descriptions of larvae of Brazilian leaf-mining Buprestidae are concentrated in the years 1963 and 1964 presented by Marcos Kogan, a researcher at the Instituto Osvaldo Cruz in Rio de Janeiro. In this period, the author contributed with important biological and taxonomic aspects of leaf-mining buprestids of the genus Pachyschelus Solier, 1833 (subtribe Pachyschelina) and Leiopleura Deyrolle, 1864 (subtribe Leiopleurina), including immature forms: Kogan (1963) described the eggs, larvae, pre-pupae and pupae of three species of genus Pachyschelus: P. subundulatus Kerremans, 1896, P. fulgidipennis Lucas, 1858 and P. binderi Obenberger, 1925. Later on, Kogan (1964b) described immature forms and presented biological data for P. mimus Obenberger, 1925 andP.…”