International Journal of Acarology (1995) 21, 229-232

Sergey Izraylevich, Uri Gerson and Manes Wysoki (1995)
Karyotype and the sex determining mechanism of the mite Hemisarcoptes coccophagus Meyer (Acarifomes: Astigmata: Hemisarcoptidae)
International Journal of Acarology 21 (4), 229-232
Abstract: Hemisarcoptes coccophagus Meyer (Acariformes: Astigmata: Hemisareoptidae) is a parasite of armored scale insects (Homoptera: Diaspididae). This mite can adjust the sex ratio of its progeny. We found that H. coccophagus has a diploid karyotype with 2n=14 in both sexes; the sex determining mechanism is either diplo-diploidy or parahaploidy. This provides one of the few examples, and the first in the Acariformes, of a non-arrhenotokous arthropod genetic system with the ability of facultative sex ratio adjustment.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Link to article at publishers website
Database assignments for author(s): Uri Gerson

Research topic(s) for pests/diseases/weeds:
biocontrol - natural enemies
Research topic(s) for beneficials or antagonists:
general biology - morphology - evolution

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
Hemisarcoptes coccophagus (predator)