Vol. XI] VAN DUZEE—NEW HEMIPTEROUS INSECTS H9 



Described from one male and two female examples taken 

 by Mr. A. Koebele at Nogales, Arizona, in September, 1906. 

 This species should perhaps not be considered as congeneric 

 with gracilis as the latter has the head longer and more de- 

 pressed and the margins of the pronotum laminate, but in 

 these respects debilis is nearly intermediate and is apparently 

 more typical of the genus. 



Named for Mr. A. Koebele who collected the specimens on 

 which the description is based. 



Holotype, male, No. 761, and allotype, female, No. 762, 

 Mus. Calif. Acad. Sci. ; a paratype in collection of Mr. 

 Koebele. 



Type locality, Nogales, Arizona. 



10. Lygidea solivaga, new species 



Smaller and paler than rubecula; color and aspect of a 

 small Platylygus; fulvo-testaceous, in male marked with 

 piceous on head and pronotum and tinged with rufous on 

 elytra. Length 5^2 to 6 mm. 



Male: Head vertical, produced below the eye for a space equal to three- 

 fourths length of eye; vertex much swollen, more prominent than in rubecula, 

 polished, its base depressed and slenderly carinate; clypeus prominent, convex; 

 rostrum somewhat surpassing hind coxae. Pronotum shaped as in rubecula, 

 the sides straight and ecarinate; surface more closely and finely punctate, 

 Callosities prominent; scutellum minutely transversely rugose; vertex, pro- 

 notum and scutellum with a median smooth line indicated. Antennae long, 

 slender; segment I as long as head viewed from above; II 3 J/2 times as long 

 as I and nearly as thick, a little more slender at base; III and IV slender, 

 together two-thirds length of II. IV nearly one-half of III. Elytra closely, 

 minutely punctate. Sinistral male clasper small, but little wider at base, 

 almost terete; dextral larger than sinistral, its superior angle somewhat pro- 

 duced and acute. Upper surface clothed with short, appressed pale hairs, 

 more apparent on elytra. 



Color, above fulvo-testaceous, paler on pronotum anteriorly and scutellum; 

 head more fulvous with an oval piceous cloud either side anteriorly between 

 the eyes; pronotum becoming fuscous toward sides and base, callosities pol- 

 ished black, collum and slender hind edge whitish, median line pale; scutel- 

 lum with a brown cloud either side the pale median line, becoming piceous 

 on basal lobe; elytra obscurely mottled with dull rufous, the apex of cuneus 

 rufous; membrane faintly fuliginous with indications of a paler area at apex 

 and smaller one either side; antennae fuscous, segment I and immediate base 

 of II and III pale; beneath piceous, polished, prosternum, margin of the 

 pleurae, osteolar region, coxae and disk of venter yellowish; legs irrorate with 

 rufous or brown, the base of femora pale. 



Female: Fulvo-testaceous, almost uniform, base of pronotum more or less 

 infuscated ; antennae slightly darker toward apex. 



