406 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.xxiii. 



with a tooth on the lower posterior border. Tegmina with the last 

 branch of the radial sector distant from the fork by about one-fourth 

 (female) or one-third (male) the length of the sector; medial and 

 cubital forks fused for a short distance; intercalary vein separatea 

 apically from the median by once (male) or several times (female) 

 its own width; area of the cubital forks narrow. Wings moderately 

 long, but distinctly less than twice as long as broad, with a distinct 

 moderately broad fuscous band at least a sixth of the length of the 

 wings in width continued on the posterior border not more than half- 

 way; spur extending about halfway to the base; apex clear with the 

 tip more or less infuscated, the fuscous markings showing a tendency 

 to folloAv the main veins. 



This group includes four closely allied species which show in the 

 markings and structure a distinct tendency to Derotmema. 



TRIMEROTROPIS TEXANA Bruner. 



Conozoa texana Bruxer, Proc. U. 8. Nat. Mus., XII, 1890, p. 65. — Townsend, 

 Insect Life, VI, 1893, p. 30. 



Slender, especially in the male, with various shades of brown and 

 white commingled, a whitish spot in the middle of the lateral lobes of 

 the pronotum and a rather indistinct yellowish stripe extending from 

 the principal sulcus above the white spot downward in a curve to the 

 base of the mandibles. Scutellum of the vertex narrow with no (male) 

 or a distinct (female) median carina; eye equal to (male) oi- distinctly less 

 than (female) the genal groove. Pronotum with the median carina 

 only slightly cristate and biloliate on the prozone, scarcely more than a 

 raised line, equal throughout on the metazone; lateral carinas entirely 

 wanting except -on the anterior of the metazone of the female; meta- 

 zone twice as long as the prozone with the process acute, its margins 

 straight and tip sharp. Tegmina mainly isabelline, but with a dis- 

 tinct lightening in those areas usually occupied by the light bands. 

 This is more apparent and conspicuous on the anterior field. Wings 

 opaque yellowish green at the base, with a rather broad, distinct fus- 

 cous band; apex hyaline with fuscous margining the principal veins 

 more or less on the first and second lobes. Posterior femora with the 

 disk of the inner face and the lower sulcus black with two light bands 

 on the apical half, outer face three black bands, the two proximal 

 ones oblique; posterior tibire didl orange with a light su))))asal 

 annulus. 



Length of body, male 22 mm., female 27 mm.; length of tegmina, 

 male 24 mm., female 30 mm.; length of posterior femora, 12.5 mm. 



One male (type), El Paso, Texas, G. W. Dunn, collector; one female, 

 Las Cruces, New Mexico, Townsend, collector; Bruner collection. 



