. A manual of dangerous insects likely to be introduced in the United States through importations. yr- i rp, • ter; A, cocoon. All enlarged. (Marsh.) ^rywry. mines iea\es. ine mines are and biology. Fly thorax lead gray, with five faint dorsal stripes, abdo-naen yellow gray with a faint brownish stripe; entire body with black bristles; headsilver white, with reddish shimmer; front and scutellum with orange, silver graystreaks; eyes red; palpi yellow with dark apex; femora yellowish, tibiae brown;length, 6 mm. The species varies in color and has received a number of name
. A manual of dangerous insects likely to be introduced in the United States through importations. yr- i rp, • ter; A, cocoon. All enlarged. (Marsh.) ^rywry. mines iea\es. ine mines are and biology. Fly thorax lead gray, with five faint dorsal stripes, abdo-naen yellow gray with a faint brownish stripe; entire body with black bristles; headsilver white, with reddish shimmer; front and scutellum with orange, silver graystreaks; eyes red; palpi yellow with dark apex; femora yellowish, tibiae brown;length, 6 mm. The species varies in color and has received a number of names. Distribution: Europe. Introduced into the United States and quite injurious tospinach. SoRAUER, p. Handbuch der Pflanzenkrankheiten, 3d ed., 1913, vol. 3, p. 428, 429, fig. , F. H. U. S. Dept. Agr. Div. Ent., bul. 43, 1903, pp. 50-52, fig. 50 (P. vicina Lintner).Ormerod, Miss E. Manual Injurious Insects, 1890, pt. 1, pp. 144-147, fig. (P. betae Curt.).Jablonowski, Jozsef. Die Tierischen Feinde der Zuckerrube (translation by Julius Reitzer), 1909, pp. 303-315, figs. BEET INSECTS. 43 B. OTHER IMPORTANT BEET INSECTS. Tetranychus telarius Linnseus, the red spider; Europe; very injurious to sugar-beet foliage. A-phis rumicis Linnaeus; Europe; sugar-beet foliage. ?^Gryllotalpa gryllotalpa Linnaeus (vulgaris Latreille); Europe, introduced into New Jersey; Gryllus mclas Charp.; Europe; seriously injures the roots. ^BlitopUaga opaca Linnaeus; Europe, North America; feeds as larva on foliage of beets, an imusuahabit for this family. It is harmless in America at undata Miller; Silpha obscura Linnaeus; and Phosphuga atrata Limiaeus; Europe; larvaefeed on foliage of beets.
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Keywords: ., bookcentury1900, bookdecade1910, bookpublisherwashingtongovtprin
