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Life cycle, development, feeding and immature life stages of the Fedrizziidae (Mesostigmata: Fedrizzioidea)

Seeman, O.D.


2000 - Volume: 41 Issue: 1-2 pages: 39-52


Keywords

Fedrizziidae reproduction life cycle development feeding

Abstract

Adult mites in the family Fedrizziidae are associated with passalid beetles, but their immature life stages have never been described. Herein, I describe the life cycles and illustrate the larva, protonymph and deutonymph of Fedrizzia grossipes Canestrini and Neofedrizzia camini Womersley . All life stages of both species fed on nematodes, and adults also scavenge upon dead mites, sometimes using their cheliceral excrescences to collect the internal juices from the carcasses. On a nematode diet at 25+/-1 deg. C, N. camini completed larva-adult development in 48+/-2 days and egg-adult development in 57+/-3 days; on the same diet, F. grossipes developed slowly, had high mortality, and rarely moulted into adults. Mating in N. camini occurred venter to venter, and post-copulatory mate guarding was observed, sometimes resulting in the death of newly-moulted females.

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Article editorial history

Date published:
2001-09-28

Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 International License
2000 Seeman, O.D.

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