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Oviposition and post-embryonic development of Aglaoctenus lagotis (Araneae: Lycosidae)

By Vanessa Stefani Sul Moreira and Kleber Del-Claro


The present study describes the life history of Aglaoctenus lagotis Holmberg, 1876 from oviposition to adulthood, analyzing the number of eggs in each egg sac, birth rate, number of instars, sex ratio, cephalothorax size of all instars, and developmental time in laboratory. The results indicate that the studied species can produce two egg sacs during the reproductive period, and that the post-embryonic phase includes 12 nymphal instars. A higher mortality rate was observed during the first three instars, featuring a Type III survival curve. The sex ratio was geared towards the female in the adults and no significant difference was observed in the length of the cephalothorax between male and female. This species can therefore be considered monomorphic. Sexual dimorphism was observed in the cuticle color, with males being light brown whereas females are dark brown

Topics: Birth rate, number of instars, sexual dimorphism, LCC:Zoology, LCC:QL1-991, LCC:Science, LCC:Q, DOAJ:Zoology, DOAJ:Biology, DOAJ:Biology and Life Sciences
Publisher: Sociedade Brasileira de Zoologia
Year: 2011
DOI identifier: 10.1590/S1984-46702011000500003
OAI identifier:
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