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Specimens of Joppeicus paradoxus Puton obtained from Egypt wore reared in the laboratory and fed various small insects. They do not prey upon one another except under starvation. The mating position is unlike that found in any other Heteroptera. Descriptions of the nymphs and of phyletic characters are given. The Joppeicidae do not appear to be closely related to the reduvioids but are related to the cimicoid families, especially the Tingidae.
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Davis et al. (1970) studied this question.
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