The genus Aeolothrips haliday in North America (Thysanoptera: Aeolothripidae)
AuthorStanley F. Bailey
Author AffiliationsStanley F. Bailey was Professor of Entomology and Parasitology and Entomologist in the Experiment Station, Davis.
Hilgardia 21(2):43-80. DOI:10.3733/hilg.v21n02p043. June 1951.
Abstract does not appear. First page follows.
The genus Aeolothrips of the insect order Thysanoptera is generally known to most entomologists as “the banded-winged thrips.” So far as is known, this group of insects are beneficial, since they prey only upon plant-feeding thrips, other small insects, and mites. No previous detailed study of this group of insects in North America has been prepared. The number of known species has grown continually, and there are many references in the literature to their predaceous habit. This report attempts to bring together all known information on this group of insects in North America, to describe new species, and to set forth various accumulations of data on distribution, host plants, and seasonal habits.
The majority of the forms we have studied and collected over a period of about twenty years has been found definitely associated with specific host plants and with definite periods of seasonal appearance. Aeolothrips fasciatus Linné is the most widespread and is found on a great number of hosts throughout the growing season from late March to October. It is not single brooded as the majority of the species appears to be. It is seen much more frequently on grasses, row and field crops, and wild and cultivated flowers than on trees and shrubs. It reaches a seasonal peak of abundance in early summer in the western states. In this area, nasturtii is most commonly associated with it, particularly in meadows. This latter species is not nearly so abundant. In northeastern California and in Oregon and Washington, auricestus Treherne is also found in this association. In the eastern and southern states, alhicinctus Hal. and ‘bicolor Hinds likewise are most commonly found on grasses.
On fruit trees, native flowering trees, and woody shrubs, several Aeolothrips species are commonly found. The most numerous and widespread in the west is kuwanaii Moulton. It is very abundant in early spring, and rapidly disappears as the hot weather approaches.
Bailey S. F. The six-spotted thrips, Scolothrips sexmaculatus (Perg.). Jour. Econ. Ent. 1939. 32(1):43-47.
Bailey S. F. Cocoon-spinning Thysanoptera. Pan-Pacif. Ent. 1940. 16(2):77-79.
Bailey S. F. A review of R. C. Treherne’s species of Thysanoptera. Canad. Ent. 1949. 81(6):153-58.
Bailey S. F., Knowlton G. F. The Thysanoptera of Utah. Ent. Soc. Wash. 1949. 51(5):231
Cazier M. A., Bacon A. L. Introduction to quantitative systematics. Bul. Amer. Mus. Nat. Hist. 1949. 93(5):343-88.
Childs LeR. Two species of thrips injurious to apples in the Pacific Northwest. Jour. Econ. Ent. 1927. 20(6):807
Crawford J. C. Some new or little known Thysanoptera. Proc. Ent. Soc. Wash. 1938. 40(2):35-36.
Hartwig E. K. Six new species of South African Thysanoptera, with statistical analyses of measurements. Jour. Ent. Soc. So. Afr. 1948. 11:83-126.
Hood J. D. A contribution toward the knowledge of New York Thysanoptera with descriptions of new genera and species. II. Ent. Americana. 1927. 7(4):210-11.
Hood J. D., Herrick G. W. A list of the insects of New York. II. Thysanoptera. 1928. Cornell Univ. Agr. Exp. Sta. 67p. Memoir 101
Moulton D., Andre F. Four new Thysanoptera, with a preliminary list of the species occurring in Iowa. Iowa State Coll. Jour. Sci. 1936. 10(3):226
Priesner H. Contributions towards a knowledge of the Thysanoptera of Egypt, XIV. 38. A review of the species of the genus Aeolothrips Hal., pertaining to the Mediterranean fauna. Bul. Soc. Fouad 1st Ent. 1948. 32:317-41.
Putman W. L. Notes on the predaceous thrips Haplothrips subtilissimus Hal. and Aeolothrips melaleucus Hal. Canad. Ent. 1942. 74(3):42-43.
Williams C. B. The pea thrips (Kakothrips robustus). Ann. Appld. Biol. 1915. 1(3-4):240
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