442 I'ROCEKDIXdS OF THE NATIONAL MCSFA'M. voi-xxm. 



TRIMEROTROPIS FALLAX Saussure. 

 Trlmerotroph fill lux .Saissi're, Prodr. ffidip., 1884, p. 170. 



Very similar to the preceding species, from wliich it may he distin- 

 guished by the following characters: Scutellum of the vertex moder- 

 ately sulcate, with the median carina always apparent and usiiall}^ 

 distinct. Pronotimi with the antericn- margin not plainly angulate 

 and the pi'ocess of the metazone slightly obtuse-angidar, the angle 

 sharp and the sides straight, not sinuate in the least; metazone twice 

 as long as the prozone. Tegmina with the maculations quite evenly 

 scattered (sometimes faint) over the whole surface, with- scarcely a 

 trace of the usual bands, the apex distinctly o])li(iuely truncate^ instead 

 of evenly rounded. 



Length of l)ody, male, 22 mm., female, 27 mm.: length of tegmina, 

 male, 23 mm., female, o(» mm; length of posterior femora, male, 12 

 mm., female, 14 mm. 



One male and one female. Placer County, California; Bruner col- 

 lection. Three males and one female. Placer County, California; U. S. 

 National Museum: C^alifornia. Saussure, Koebele. 



TRIMEROTROPIS NUBILA, new species 



Color variable, but maculations usuall}" distinct. Frontal costa only 

 slightly constricted below the ocellus; scutellum of the vertex shal- 

 lowly sulcate, with the median carina indistinct. Pronotum with the 

 anterior margin distinctly augulate, and the process of the metazone 

 rectangulate and sharp, with the margins slightly sinuate; the median 

 carina is moderately cristate on the prozone, with the front lobe nearly 

 twice as long as the second; the lateral carinse are distinct on the front of 

 both prozone and metazone. The tegmina have the annular fuscous 

 spots gathered into two somewhat distinct l)ands; the maculations on 

 the distal two-tifths are about as mimerous in the middh^ as along the 

 margins of this area; the intercalary vein is separated from the median 

 by once its width; th(> distance between the radial and median forks is 

 considera])ly greater than the width of the anterior tield; the radial 

 sector has three or four forks; the median and cubital veins do not 

 fuse at the end of the intercalary area, but are free or connected by a 

 cross vein; the anterior fork of the culiitus furcates near its base. The 

 wings are moderately broad, scarcely twice as long as broad, with the 

 disk greenish-yellow and the rest of the wing infuscated, or the sub- 

 apical portion merely infumated; the fuscous l)and does not extend 

 be^^ond the fifth lobe, or less than halfway to the anal angle; the 

 median stem joins the radius a little more than one-third the length of 

 the wing from the base, and the latter forks halfway between this 

 point and the apex. The second dividing vein joins the second anal 

 one-third the distance* from the l)ase to margin. The posterior femora 



