Made available in DSpace on 2022-04-28T20:01:16Z (GMT). No. of bitstreams: 0 Previous issue date: 2003-01-01; Morphological caste differences and ovary conditions were analyzed in four colonies of Brachygastra augusti collected in different stages of the colony cycle. Differences between castes are distinct suggesting pre-imaginal determination. Many intermediates (non-inseminated ovary-developed females) were ...
Made available in DSpace on 2022-04-28T20:21:12Z (GMT). No. of bitstreams: 0 Previous issue date: 2007-01-01; The male genitalia of Pseudopolybia vespiceps are described and compared to congeners. Characters of the male genitalia are combined with morphological characters of the females and nests and used in a phylogenetic analysis. The single cladogram resulting supports monophyly of the genus Pseudopolybia an...
Made available in DSpace on 2022-04-28T19:52:58Z (GMT). No. of bitstreams: 0 Previous issue date: 2022-06-01; Parasitoid wasps within the Vespoidea superfamily have been chronically under surveyed, thanks to the bigger attention given to the social species within that group or to the other parasitoids within the megadiverse Parasitica infraorder. To address that, we test a new sampling technique for the capture...
Made available in DSpace on 2022-04-28T20:56:58Z (GMT). No. of bitstreams: 0 Previous issue date: 2009-01-01; In this work, an alternative method for the capture of neotropical social wasps is described, which may supplement or replace the procedures commonly used in wasp surveys. The method was tested in a seasonal semideciduous forest in the northwest of São Paulo State, collecting a larger number of species ...
Made available in DSpace on 2022-04-28T21:00:53Z (GMT). No. of bitstreams: 0 Previous issue date: 2010-04-15; Social wasp diversity in Semideciduous Seasonal Forests of the northeast of São Paulo State is poorly known, causing a lack of information on the diversity of these wasps from these areas which have been degraded. The objective of this work was to evaluate the social wasp (Vespidae, Polistinae) diversit...
Made available in DSpace on 2022-04-28T21:00:53Z (GMT). No. of bitstreams: 0 Previous issue date: 2009-01-01; Human exploitation of the forest in the northwest of São Paulo State has generated enormous fragmentation of that forest. Such disturbance has reduced the populations of insects in general. This work was a survey of social wasps (Hymenoptera, Vespidae; Polistinae) in three areas in different stages of r...
Made available in DSpace on 2022-04-28T21:00:55Z (GMT). No. of bitstreams: 0 Previous issue date: 2009-01-01; Characters of adult morphology, male genitalia, and nest architecture are combined in a cladistic analysis of the neotropical paper wasp genus Synoeca. The single resulting cladogram supports the monophyly of genus. The species are related as follows: S. chalibea (S. virginea (S. septentrionalis (S. sur...
Made available in DSpace on 2022-04-28T21:25:13Z (GMT). No. of bitstreams: 0 Previous issue date: 2010-01-01; Morphometric studies performed in several species of Neotropical social wasps from the tribe Epiponini showed that in some species there are marked differences between castes, while other species present highly distinct castes with differences only in ovarian development. This work analyzed females from...
Made available in DSpace on 2022-04-28T22:49:09Z (GMT). No. of bitstreams: 0 Previous issue date: 2011-07-18; Richards' gland in the epiponine wasp Metapolybia docilis occurs at the anterior side of the 5 th abdominal sternite, and is formed by approx. 360 secretory cells. The cells discharge their secretory products through accompanying duct cells into a reservoir that is formed by the invaginated intersegment...
Made available in DSpace on 2021-06-25T10:47:15Z (GMT). No. of bitstreams: 0 Previous issue date: 2020-01-01; Neotropical swarm-founding wasps are divided into 19 genera in the tribe Epiponini (Vespidae, Polistinae). They display extensive variation in several colony-level traits that make them an attractive model system for reconstructing the evolution of social phenotypes, including caste dimorphism and nest ...