Natural Enemies
A gryllacridid was observed feeding on the eggs of O. magnificus, and a sarcophagid parasitoid has been reared from eggs of the same species. Five species of hymenopteran parasitoids are known to attack Mastiphora eggs. Tromatobia notator parasitizes M. cornigera, M. bisaccata and M. phrynosoma; Gelis sp. parasitizes M. cornigera. The eupelmids Arachnophaga abstrusa, A. ferruginea and A. picea parasitize Mastophora species, M. hutchinsoni and M. cornigera, respectively.
Read more about this topic: Bolas Spiders
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