. The Canadian entomologist. Insects; Entomology. 238 THE CANADIAN ENTOMOLOGIST Length 6 to 7 mm.; length of wing 5 to mm. Described from 12 specimens taken in 1918 at El Centre and Alhambra, Cal. Adult male (after Williston's quotation of Osten Sacken) (2). ". . Length 7 mm. Face, including the frontal triangle, pale yellow, slightly opalescent, a bluish black stripe extends from the oral edge to the antennse, forming a semicircle above them. Antenna reddish, third segment brown along the upper edge, vertex black. Thorax bright green, a pale yellow stripe on each side betwe
. The Canadian entomologist. Insects; Entomology. 238 THE CANADIAN ENTOMOLOGIST Length 6 to 7 mm.; length of wing 5 to mm. Described from 12 specimens taken in 1918 at El Centre and Alhambra, Cal. Adult male (after Williston's quotation of Osten Sacken) (2). ". . Length 7 mm. Face, including the frontal triangle, pale yellow, slightly opalescent, a bluish black stripe extends from the oral edge to the antennse, forming a semicircle above them. Antenna reddish, third segment brown along the upper edge, vertex black. Thorax bright green, a pale yellow stripe on each side between the humerus and the root of the wings; ante-scutellar (post-alar) callosity yellowish; scutellum of a saturate yellow, the extreme corners dark; halteres with yellow knobs. First abdominal segment metallic greenish black, its extreme anterior margin only yellow; the rest of the abdomen black, opaque; an interrupted yellow cross-band on the second segment equal to about one-third the segment in breadth; a somewhat broader, slightly arched, and not interrupted yellow cross-band on the third segment; on the fourth, two narrow, parallel, longitudinal lines in the middle and an obliquely placed, large, oval spot on each side of them, yellow; the narrow fifth segment shows a yellow picture, somewhat resembling that of the fourth segment. Legs yellow; tip of tarsi brownish; hind femora with a brown ring before the tip; hind tibiae with two such rings, one before the middle, the other before the tip; hind tarsi brown, except the under side of the first joint. Wings hyaline; stigma brownish ;. Fig. 31. A, B.—Allograpla obliqua, female, dorsum of abdomen and front view of head. C, D.—Allograpla fracla, female, dorsum of abdomen and front view of head. Osten Sacken (3) described the species from a single male collected at Santa Monica, Cal., in 1876. There are before the writer 22 males from southern California; of these 20 have the cross-band of the second segment cons
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