Biological aspects of the true spider Latrodectus Geometricus Koch 1841(Araneae:Theridiidae) feeding on different prey under laboratory conditions [electronic resource].

Includes reference.

This study was conducted to rear the spider Latrodectus geometricus Koch, 1841 (Theridiidae) when fed on different prey under laboratory conditions. The biological aspects including, 1-mating, 2-oviposition, 3- development, 4-adult longevity 5-lifecycle, 6-moulting, and 7 -predation efficiency were carried out. Male and female pass through four and eight immature stages (spiderlings) respectively before reaching adult stage with the life cycle averaged 91.15 & 198.57 days respectively at 25°C. and relative humidity of 70-80 %. Obtained data also showed that the first and second spiderling consumed the largest number of red spider ( Tetranychus urticae), both to sexes spiders, while the third and fourth spiderling fed on the Drosophila melanogaster. From fifth spiderlings two adult; the individuals fed on the different stage from larvae Spodopetra lettrolaris for males and females. However, the longevity periods of the spider lasted 25.4: and 171 39.71 days for male and female.

Summary in Arabic.

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