University of California

Biological studies of two species of tydeid mites from California


Clive Desmond Brickhill

Author Affiliations

Clive Desmond Brickhill was Research Assistant in Department of Entomology and Parasitology, Berkeley.

Publication Information

Hilgardia 27(20):601-620. DOI:10.3733/hilg.v27n20p601. October 1958.

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Tydeid mites are commonly present on vegetation, but have been studied very little. This paper mainly concerns possible sources of nutrition of two species of California tydeids, Tydeus bakeri and Lorryia ferulus, of which the former is described in this paper. Further information is given on general biology, on the various nymphal stages, and on possible economic significance.

Literature Cited

Baker E. W., Wharton G. W. An introduction to acarology. 1952. New York. Pp: The Macmillan Co. DOI: 10.5962/bhl.title.6810 [CrossRef]


Finney G. L. A technique for mass-culture of the six-spotted mite. Jour. Econ. Ent. 1953. 46(4):712-13.

Fleschner C. A., Arakawa K. Y. The mite Tydeus californicus on citrus and avocado leaves. Jour. Econ. Ent. 1953. 45(6):1092

Grandjean F. Observations sur les Tydeidae. Bul. Mus. Nat. d’Histoire Naturelle 2e Serie-Tome. 1938. X(4):377-84.

Hagen K. S. Fecundity of Chrysopa californica as affected by synthetic foods. Jour. Econ. Ent. 1950. 43(1):101-04.

Huffaker C. B., Kennett C. E. Experimental studies on predation. Predation and cyclamen-mite populations on strawberries in California. Hilgardia. 1956. 26(4):191-222.

Mcgregor E. A. The ubiquitous mite, a new species on citrus. Ent. Soc. Wash. Proc. 1932. 34(4):60-61.

Smirnoff W. A. An undescribed species of Lorryia (Acarina, Tydeidae) causing injury to citrus trees in Morocco. Jour. Econ. Ent. 1957. 50(3):361-62.

Brickhill C. 1958. Biological studies of two species of tydeid mites from California. Hilgardia 27(20):601-620. DOI:10.3733/hilg.v27n20p601
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