SUBFAMILY III. — ORTHOTYLIN^E. 863 



943 (1177). Orthotylus marginatus (Uhler), 1895, 43. 



Black, sparsely clothed with pale appressed hairs; costal margin of 

 elytra, legs and middle of ventrals pale greenish-yellow; female with pale 

 color of elytra sometimes encroaching upon the base of claval suture and 

 veins of corium; cuneus yellowish, its inner angle fuscous; membrane 

 blackish, veins pale at apex; legs pale greenish, tibiae and tarsi with tips 

 darker; ventrals, except along middle, black. Antennae black, reaching 

 cuneus, joint 1 stouter than 2, longer than head; 2 as long as clavus; 3 

 and 4 more slender, 3 one-half as long as 2, twice as long as 4. Beak 

 reaching tips of middle coxa?. Vertex but little flattened, its carina sharp 

 and high. Pronotum three-fifths as long as wide at base, sides distinctly 

 sinuate; calli large, prominent, not united in front; basal half of disk 

 finely transversely rugose. Apex of abdomen reaching middle of cuneus, 

 male, nearly to its tip, female. Length, 5 — 5.5 mm. 



Quinze Lake, Quebec, and Hamburg, N. Y., June 14 — Aug. 

 15 ( Van Duzee) . Described from Colorado. Not recorded else- 

 where. 



944 ( — ). Orthotylus serus Van Duzee, 1921, 131. 



Closely allied to marginatus. Differs by characters given in key and 

 by having the pale costal stripe on elytra broader, its inner margin 

 straight in both sexes; cuneus dull yellow, inner half largely fuscous; 

 membrane pale fuscous with pale spot near apex of cuneus, its veins 

 wholly dark. Vertex distinctly flattened, its basal carina obtuse. Prono- 

 tum with front of calli connected by an elevated line ; basal half of disk 

 finely transversely strigose. Beak reaching middle of hind coxa?. Length, 

 6 mm. 



Salamanca, N. Y., July 24 ( / 'an Duzee) . Batavia, N. Y., July 

 5 (Minn. Univ. Coll.). Recorded elsewhere only from Hamburg, 

 Gowanda and Golden, N. Y. Host plants as in key. 



945 (— ). Orthotylus alni Knight, 1923, 521. 



Black; narrow line along side margins of eyes, narrow median stripe 

 on basal half of pronotum, stripe bordering radial vein to beyond middle 

 of corium and spot at base of cuneus, dull yellowish-translucent; mem- 

 brane and veins uniformly dark fuscous ; legs dark green, knees, tarsi 

 and tips of tibiae blackish. Joints 1 and 2 of antenna? black, 3 and 4 fus- 

 cous; 1 as long as width of vertex plus one eye, 2 three times as long 

 as 1,3 two-fifths the length of 2, twice as long as 4. Female with cuneus 

 and base of embolium more broadly translucent. Length, 5.6 — 6 mm. 



Beaver Bay, Minn., Aug. 20 (Minn. Univ. Coll.). Recorded 

 only from Eastport, Me., and New York. Host plant as in key. 



946 (1179%). Orthotylus ornatus Van Duzee, 1916b, 122. 



Male — Elongate, sides subparallel, rather robust. Fuscous-black, 

 rather thickly and very finely pubescent; cheeks, base of vertex, narrow 

 side margins of pronotum, tip of scutellum, cuneus and basal half of 

 corium, dull yellow; membrane pale fuscous, veins and spot on apical half 



