Now showing items 21-30 of 385
Biological activity of limonoids from meliaceae against a subterranean termite (Heterotermes tenuis) (Isoptera: Rhinotermitidae)
Recent studies, proposed to obtain active compounds against termites (Heterotermes tenuis Hagen, as a model) have showed that attention could be driven to the limonoids, because they present high insecticidal activity ...
Description and morphometry of the sting apparatus in the three worker casts of Acromyrmex subterraneus brunneus (Formicidae, Attini)
We studied the morphometry of the sting apparatus of Acromyrmex subterraneus brunneus workers by dissection and mounting of the structures on slides, and present here a brief description and illustrations. Sting apparatus ...
Comparative morphology of the midgut of three species of Cephalotes (Hymenoptera, Formicidae, Myrmicinae)
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, ...
Population dynamics of Ectatomma brunneum (Hymenoptera, Formicidae) under laboratory conditions
Ectatomma brunneum Smith is an ant of wide distribution in Latin America, occurring from Panama to Argentina, and it can be found all over Brazil, usually in areas with open vegetation such as forest edges or clearings, ...
Daily activity resources collection by the swarm-founding wasp Angiopolybia pallens (Hymenoptera: Vespidae)
Angiopolybia pallens (Lepeletier, 1836) exhibited an intense activity at the beginning (6:00-7:00 a.m.) and end of the day (5:30-6:00 p.m.) (bimodal daily activity) and a low efficiency index in resources collection. The ...
Division of labor in pachycondyla striata Fr. Smith, 1858 (Hymenoptera: Formicidae: Ponerinae)
Four colonies of the ant Pachycondyla striata were used to analyze the specie behavioral repertoire. Forty-six behavioral acts were recorded in laboratory. Here, we present the record the division of labor between the ...
Change of collembolan (Hexapoda: Collembola) community structure related to anthropic soil disturbanceCambio de la estructura de la comunidad de colémbolos (Hexapoda: Collembola) en relación con el disturbio antrópico de los suelos
(Universidad Nacional de Cuyo. Facultad de Ciencias Agrarias, 2018)