Bulletin (Volume 85)

This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1914 edition. Excerpt: ...(Patch '12b: 230). Both nymphs and imagines found in August. TRIOZA ARIZONA Aulmann. Figs. 189, 357, 363, 515. Trioza marginata Crawford '10a:232; '10b:356.--patch '12b:228. Trioza arizonse Aulmann '13:39 (new name). Length of body 2 mm; length of forewing about 3; width of head 0.70. General color light brown, mesoscutellum often with two darker stripes; antennse and legs lighter colored; abdomen pale ventrad. Head narrower than thorax, much broader than prothorax; vertex slightly impressed discally and postocellar areas well elevated, about twice as broad as long, scarcely emarginate in front at median line. Genal cones about two-thirds as long as vertex, slightly divergent, subacute, sparsely pubescent. Antennae about one and a half times as long as width of head. Thorax strongly arched, moderately broad; pronotum very short, much longer than praescutum. Hind tibia with two small spines at apex within and one outside. Wings slender, nearly three times as long as broad, subacute at apex, with a more or less pronounced brown band along posterior margin. Genitalia.--Male.--Anal valve with a relatively large lobate projection caudad on each side, somewhat as in maura; forceps slender, simple, acute, and slightly toothed on inner margin apically. Female.--Genital segment short, scarcely longer than preceding segment, very acutely pointed; dorsal valve slightly longer than ventral. Described from one male and several females from Arizona (no data), and one from Fort Yuma, Arizona (Hubbard), January 20. Type.--Cat. No. 18087, U. S. Nat. Mus. (Type of T. marginata.) This species shows a marked resemblance to T. maura, but is sharply differentiated from it by the maculation of the wings. TRIOZA MAURA Forster. Figs. 190,192, 354, 385, 370, 371, 372, ...