26o CALIFORNIA ACADEMY OF SCIENCES. 



west as well the east; and it is now distributed over the 

 whole width of the continent from the mouth of Macken- 

 zie River in Arctic America to Panama and northern Bra- 

 zil. It dwells on weeds and grasses of many kinds. Mr. 

 John Xanthus brought specimens from Cape St. Lucas, 

 and in the present collection there are specimens labeled 

 " Cal. 2 " and " Cal. 9." 



Lygus vividus n. sp. 



Elongate suboval, bright tender green, beneath green- 

 ish-white, minutely pubescent. Head yellow, nearly ver- 

 tical, short, blunt, polished, longitudinally indented an- 

 teriorly; eyes large, black, prominent, with coarse facets, 

 the space between them narrow; the tylus thick, moder- 

 ately curved, the rostrum yellow, reaching to behind the 

 middle coxa?. Legs pale luteous, finely pubescent, the 

 posterior femora thick, somewhat flattened, obsoletely 

 bicarinated beneath ; the nails and tip of tarsi dark piceous. 

 Pronotum convex, short, with the anterior lobe, collum 

 and margins all around, yellow, indented space between 

 the callosities slightly carinate across the front, the collum 

 cylindrico-convex, almost in contact with the corner of 

 the eye, lateral margins steep, the carinate edge almost 

 obliterated, the surface generally clothed with yellow, 

 almost erect, pubescence, and obsoletely scabrous. Scutel- 

 lum longer than wide, pubescent and scabrous like the 

 pronotum, moderately convex, yellow across the depressed 

 base. Hemielvtra densely minutely scabrous, closely pu- 

 bescent, with the broad almost straight costa pale green- 

 ish-yellow, the long cuneus of the same color; mem- 

 brane long, dusky whitish with the vein green. Venter 

 greenish white, minutely sericeous pubescent. 



Length to tip of venter 33^-4 mm. Width of prono 

 tum 1^-2 mm. 



