Comportamento e dieta alimentar de uma espécie de Latrodectus do grupo Mactans (Araneae, Theridiidae) em cativeiro

Abstract

ABSTRACT. 8ehavior and diet supply of Lalrodeclus group Maclans (Araneae, Theridiidae) in captivity. Lalrodeclus gr. maclans is responsible for 28% of aI! accidents provoked by spiders in state of Bahia, Brazil (1980-1990, which makes necessary the study ofits manejament. The spiders were captured in Ondina, Salvador, and in Baxio, Esplanada (Bahia, Brazil); they were mantained in captivity, with food supply weekly (Alia sp., larva of Tenebrio sp. and Drosophila me/anogasler) with three hours/ offers observation time, during march/95 to april/96. ln captivity, the spiders accepted two kinds of food : Alia sp., which seems to be the major item of its diet in natural conditions, and larva of Tenebrio sp. , which is not available in natural conditions. Drosophi/a l1Ie/anogasler was systematically rejected. The feeding behavior is composed by four distinct steps: ( I) immobilization, (2) inoculation, (3) second immobilization and (4) ingestion. Two kinds ofsocial alimentalY behavior are described. The results indicated that larvae of Tenebrio sp. can be an alternative supply for successfull maintenance ofthis specie in captivity.

Notas sobre la dieta de la viuda negra mediterránea Latrodectus tredecimguttatus (Rossi, 1790) (Araneae: Theridiidae) en el suroeste de la península ibérica

“…on L. hesperusChamberlin et Ivie, 1935 in North America;Nyffeler et al (1988) andRocha- Dias & Kobler (1999) on L. mactans (F.) in USA and Brazil, respectively; Pompozzi et al (2013) on L. mirabilis (Holmberg, 1876) in Argentina and Taucare-Ríos & Canals (2015) on L. geometricus C. L. Koch, 1841 in Chile. In the Iberian Peninsula, only Hódar & Sánchez-Piñero (2002) investigated L. lilianae.…”