Rearing Theridion melanostictum O.P. Cambridge (Araneae: Theridiidae) on Tetranychus urticae Koch and larvae of Spodoptera littoralis Boisd

Document Type : Original research articles

Author

Plant Protection Research. Institute , Agri. Res. Center, Giza, Egypt

Abstract

Theridion melanostictum O. P. Cambridge, 1876 (Araneae: Theridiidae) was collected from apple trees, El- Sadat city, El-Menofia governorate. Reared  under laboratory  conditions  of 24-26°C  and 60-70%  R.H., males reached maturity  after 4 spiderlings (instars); while females after 5 (instars). Spiders were fed every two  days  on  the two preys,  Tetranychus urticae Koch and larvae of Spodoptera littoralis (Boisd.). Total spiderlings averaged (105±2 and 136.6±3), (51.1±1.6 and 57.5z2.7) days for male and female when fed on T. urticae  and  S. littoralis, respectively.  Life cycle, feeding  behavior, food consumption and mating behavior were observed.

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