University of California

New species of the genus Cryptognathus Kramer (Acarina: Cryptognathidae)


F. M. Summers
W. M. Chaudhri

Authors Affiliations

F. M. Summers was Professor of Entomology and Entomologist in the Experiment Station, Davis; W. M. Chaudhri was Lecturer in Entomology, West Pakistan Agricultural University, Lyallpur, Pakistan.

Publication Information

Hilgardia 36(7):313-326. DOI:10.3733/hilg.v36n07p313. March 1965.

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The genus Cryptognathus is defined and the relatedness of its family to others now included in the superfamily Raphignathoidea is discussed. Eight new species from California and two from the Galapagos Islands are described. One previously named subspecies, C. cucurbita cucurbitella, is elevated to specific rank and redescribed. The species included in this study comprise two distinct groups. Characteristic patterns of ornamentation on the dorsal and ventral body plates are found to be especially useful for distinguishing one species from another. A key for identifying females of the new species is provided.

Literature Cited

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Kramer Paul M. Ueber die Milbengattungen Leptognathus Hodge; Raphignathus Dug.; Caligonus Koch; und die neue Gattung Cryptognathus. Arch. f. Naturg. 1879. 45(Bd.1):142-57.

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Meyer Magdalena K. P., Ryke P. A. J. Mites of the superfamily Raphignathoidea (Acarina: Prostigmata) associated with South African plants. Ann. and Mag. Nat. Hist., Ser. 13. 1959. 2:209-34.

Summers F, Chaudhri W. 1965. New species of the genus Cryptognathus Kramer (Acarina: Cryptognathidae). Hilgardia 36(7):313-326. DOI:10.3733/hilg.v36n07p313
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