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Comparative morphology of the midgut of three species of Cephalotes (Hymenoptera, Formicidae, Myrmicinae)
(2007-11-15)
Studies of histological nature, histochemistry and ultra-morphology of the midgut of three species of ants belonging to the genus Cephalotes (atratus, clypeatus and pusillus) were performed. In histology H-E was employed, ...
Evaluation of urban ants (hymenoptera: formicidae) as vectors of microorganisms in residential and industrial environments: II. Fungi
(2007-07-16)
Collections in households and industrial kitchens were done aiming at evaluating the potential of urban ants in spreading fungi. The most abundant ant species in households were Tapinoma melanocephalum and Paratrechina ...
Foraging activity of Trachymyrmex fuscus (hymenoptera: formicidae) in a degraded area
(2007-07-16)
Two Trachymyrmex fuscus nests were observed between 2001 and 2002 in order to analyze the ant's foraging activity and the substrate collected by workers in an area modified by human activity. The analysis of results ...
Population dynamics of Ectatomma planidens (Hymenoptera: Formicidae) under laboratory conditions
(2007-11-15)
The ant Ectatomma planidens belongs to the subfamily Ectatomminae and it is abundantly found in the Neotropical region. Five colonies of such species were studied regarding their population dynamics in the laboratory, ...
Temporal polyethism in workers of Ectatomma edentatum (Formicidae: Ponerinae)
(2003-03-15)
In the present study, adult ants emerged from five nests kept under laboratory conditions were individually monitored in order to determine their longevity and observe their individual behavior in relation to age (temporal ...
Division of labor in Ectatomma edentatum (Hymenoptera, Formicidae)
(2002-01-01)
The behavioral division of labor between queens and workers of E. edentatum was investigated under laboratory conditions. Each behavioral category of both castes was described by direct observation of the ants in the ...
The origin of lipid droplets in the post-pharyngeal gland of Dinoponera australis (Formicidae: Ponerinae)
(2002-09-01)
The post-pharyngeal gland of normal and starvation ants was studied under TEM. This study showed an orgin of lipids droplets from mitochondria (named derivate mitochondria) in the normal ants and the lipids absence or ...
New record for the army ant Labidus mars (Formicidae: Ecitoninae) in the Atlantic Rain Forest of São Paulo State, Brazil
(2003-08-18)
The occurrence of the army ant Labidus mars in Mogi das Cruzes (SP, Brazil) is recorded and includes additional information about the area, diet and foraging schedule of this rare army ant. This species of Ecitoninae was ...
Morphology of the eggs and larvae of Cyphomyrmex transversus Emery (Formicidae: Myrmicinae: Attini) and a note on the relationship with its symbiotic fungus
(Magnolia Press, 2008-11-05)
The morphology of the eggs and larvae of the ant Cyphomyrmex transversus Emery is here described and discussed for the first time. Some morphological characteristics of the symbiotic fungus that covers the eggs, larvae, ...
Resource partitioning among epigaeic and hypogaeic ants (Hymenoptera: Formicidae) of a Brazilian cocoa plantation
(1995-12-01)
Patterns of dietary and foraging strata utilization by the ground ant community of a Brazilian cocoa planatation were examined using sugar, meat and flour baits on the surface as well as buried. A total of 49 ant species ...