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TRITOXA FLEXA WIED., THE BLACK ONION FLY (ORTALIDAE, DIPT.)

Published online by Cambridge University Press:  31 May 2012

F. H. Chittenden
F. H. Chittenden
Affiliation:
U. S. Bureau of Entomology.
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Extract

The black onion fly was observed as an eneniy of onions as early as 1865, but no positive published records of similar injuries were brought to the writer's knowledge until more recent years. This fly is a native species, and although recorded as occurring in New Jersey, it has not attracted attention save in the States of Ohio, Illinois, Indiana, Pennsylvania, Wisconsin, and Minnesota, and there are, therefore, reasons for believing that it is practically restricted, at least as a pest, to the middle western region and does not extend very far east or south of the states mentioned.

Type
Articles
Information
The Canadian Entomologist , Volume 59 , Issue 1 , January 1927 , pp. 1 - 4
Copyright
Copyright © Entomological Society of Canada 1927

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References

LITERATURE CITED

(1)—Banks, Nathan—Tech. Series, No. 22, Bur. Entom., U. S. Dept. Agri., pp. 34, 35, pl. III, figs. 46–46, Jan. 10, 1912.Google Scholar
(2)—Bartlett, Levi—Practical Entotnologist, vol. I, p. 20, 1865.Google Scholar
(3)—Chittenden, F. H.—U. S. Dept. Agric. Yearbook, 1912, p. 329, 1913.Google Scholar
(4)—Loew, H.—Monographs of the Diptera of North America, Pt. IIII, pp. 102–104, pl. VIII, fig. 10, 1872.Google Scholar
(5)—Shimer, H.—Prairie Farmer, Sept. 2, 1865.Google Scholar
(6)—Walker, F.—Insecta Saundersiana, Diptera, p. 383, pl. VIII, fig. 10, 1856.Google Scholar
(7)—Walsh, B. D.—Practical Entomologist, vol. I, p. 4, fig. 1865.Google Scholar
(8)—Wiedemann, C. R. W.—Aussereuropaische Zweiflugelige Insekten, vol. II, p. 483, 1830.Google Scholar