444 PROCEEDINGS OF THE NATTOXAL MVf^EUM. 



Posterior tih'ui' exactly as in Ti'mnfotropii^. 



Length of body, male, 20 mm., female, 25 mm.; length of tegmina, 

 male, 21i nnn., female, 29 mm.; leng-th of posterior femora, male, 9:^ 

 nnn., female, 12 mm. 



7V/?e.— Cat. No. 5374, U.S.N.M.; Tig-hes Station and Julian, south- 

 ern California, Seudder. The species is known to me by this single 

 specimen, a female. It is without :; locality label. 



CAERULEIPENNIS group. 



Size medium, color brown or gray, consideral)ly varied with darker 

 spots. Scutellum of the vertex nuich (male) or little (female) longer 

 than broad; central and lateral foveohe distinct; eyes as long (male) 

 or decidedly (female) shorter than the genal groove. Pronotum with 

 the lateral carina^ wanting; anterior lobe of the crest of the prozone not 

 much longer than the pt)sterior. Tegmina with the annular macuhi- 

 tions distinctly segregated into three bands; intercalary vein in the 

 apical half separated from the median by a space not greater than 

 (male) or plainly greater than (female) its width; last branch of the 

 radial sector distant from the fork f I'om one-third to one-half the length 

 of the sector; area of the cubital forks tilled with irregular cells in sev- 

 eral roww; median and cubital forks not fused, free or connected by a 

 short vein; anterior fork of the cubitus forking near the base. Wings 

 with the disk blue, fuscous l)ands present or plainly indicated ))y inf us- 

 cated veins and cells. Posterior femora l)lack on the disk of the inner 

 face, with two light bands on the apical half; plainly but not con- 

 spicuously banded on the outer face. Posterior tiltia^ l)lue, with a 

 lighter su))])!isal annuhis. 



TRIMEROTROPIS CAERULEIPENNIS Bruner. 

 Trimeratroj)!.^ (■(vrxleipeiiiiix Brcxek, Can. Ent., XVII, 1885, p. 10. 



Scutellum distinctly wider than in cyanijh^x/n's^ with the median 

 carina distinct, especially in front. Pronotum with the anterior 

 margin distinctly angulate; median carina strongly cristate upon the 

 })r()zone; metazone with the disk finely gi'anulate, its process right 

 (male) or ol)tuse angulate (female), the sides slightly arcuate and tip 

 scarcely rounded. Wings long and narrow, being twice as long as 

 wide; disk light ])lue, ]x)rdered exteriorly by the usually incomplete 

 and narrow fuscous band which, when present on the exterior border, 

 reaches much less than halfway to the anal angle; apical two-fifths 

 hyaline without any infuscated cells. Posterior tibia' light blue with 

 a distinct light annulus, which is sometimes intensified on the outside 

 by a white cloud. 



Length of ])ody, male, 18 nun.; female, 28 mm. Length of teg- 

 mina, male, 23 mm.; female, 31 nun. Length of posterior femora, 

 male, 12 mm.; female, 15 mm. 



