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Insecta: La búsqueda de la clasificación perfectaInsecta: Searching for the perfect classification
(Sociedad Entomológica Argentina, 2005-12)
La historia de la clasificación de los insectos es analizada desde el punto de vista de sus relaciones externas (e.g., Unirramea, Mandibulata, Atelocerata, Pancrustacea) e internas (e.g., Hexapoda, Insecta, Entognatha, ...
Biological activity of limonoids from meliaceae against a subterranean termite (Heterotermes tenuis) (Isoptera: Rhinotermitidae)
(2007-11-16)
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)
(2007-11-15)
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)
(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, ...
Population dynamics of Ectatomma brunneum (Hymenoptera, Formicidae) under laboratory conditions
(2005-12-12)
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)
(2006-06-07)
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)
(2012-02-15)
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 ...
Nuevo registro de pulgas (Hexapoda, Siphonaptera) parasitando al Pingüino de Magallanes Spheniscus magellanicus (Forster) (Aves, Sphenisciformes, Spheniscidae) en la ArgentinaNew record of fleas (Hexapoda, Siphonaptera) parasitizing the Magellanic Penguin Spheniscus magellanicus (Forster) (Aves, Sphenisciformes, Spheniscidae) in Argentina
(Asociación Parasitológica Argentina, 2016-10)
Las pulgas del género Parapsyllus Enderlein, 1903 (Rhopalopsyllidae, Parapsyllinae) parasitan aves en forma exclusiva, en su mayoría marinas. Damos a conocer un nuevo registro de Parapsyllus longicornis (Enderlein, 1901) ...
Enzymatic activity of the hypopharyngeal gland extract from workers and males of Scaptotrigona postica Lat. (Hymenoptera, Apidae, Meliponini)
(2003-03-15)
The objective of this research was to contribute to elucidation of the function of the hypopharyngeal glands of S. postica in enzyme production, using the Api Zym kit (Bio Mérieux). Dealing with a comparative analysis ...
Ultramorfologia e Histologia da Glândula Salivar do Tórax de Polistes versicolor (Olivier) (Vespidae), Comparada com a de Outros Hymenoptera
(2003-12-01)
The salivary system of the Hymenoptera consists of the mandible, hypopharynx and thoracic salivary glands. It is very important because it is related to various aspects of the life of the insects, such as pheromone production, ...