. Bulletin. Insects; Insect pests; Entomology; Insects; Insect pests; Entomology. Fir,. 9.—Systeiia tseniata, dark variety—about 6 times natural size (au- thor's illustration, Di- vision of Entomology). This species (fig. 10) resembles in its habits the two flea-beetles that have just been mentioned. Its color is shining black throughout except the major portion of the head, which is red. It has been known as an enemy of beets since 1891. It also attacks potato and })eans, but is not restricted to vegetalde crops, being quite fond of the foliage of fruits, including grape, gooseberry", pe
. Bulletin. Insects; Insect pests; Entomology; Insects; Insect pests; Entomology. Fir,. 9.—Systeiia tseniata, dark variety—about 6 times natural size (au- thor's illustration, Di- vision of Entomology). This species (fig. 10) resembles in its habits the two flea-beetles that have just been mentioned. Its color is shining black throughout except the major portion of the head, which is red. It has been known as an enemy of beets since 1891. It also attacks potato and })eans, but is not restricted to vegetalde crops, being quite fond of the foliage of fruits, including grape, gooseberry", pear, and others. It inhabits practically the entire arable region east of the Rocky Mountains, including southern Canada and the Southern States (Bui. 33, n. s., Div. Ent., pp. 111-113). THE SMARTWEED FLEA-BEETLE. {Systena hudsonias Fonst.) From the red-headed flea-beetle thi,^ differs in being uniformly shining black. Otherwise the two species are very similar. Taken all in all, it is perhaps the most abundant of the flea-beetles which have been mentioned, but, although it shows a fondness for a number of crop plants^ including sugar beet, potato, grape, beans, and sweet corn, it is much more confined to weeds (L. c, pp. 113-lU). The larval habits of the three species last mentioned have not been positively ascertained, but there is little doubt that they will be found to be much the same as those of the pale-striped flea-beetle, since the beetles of all of them occur in greatest numbers on the same species of weeds, and, even when occurring in moderate abundance, seem to show little Fig. 10.—Systena frontalis— much enlarged (author's illustration, Bivision of Entomology). «This and the preceding species are discussed in Bui. 23, n. s., Div. Ent., p. 23. 11612—No. 43—03 2. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not
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