92 THE CANADIAN ENTOMOLOGIST. 



head has a brown cloud, the ocelli are rufous and some of the elytral 

 nervures are broadly interrupted with white. Length, about 3 mm. 



Colorado, Arizona, California. Described from ten examples repre- 

 senting both sexes. I'his plain little insect I have received from several 

 correspondents labelled Agallia venata, Uhl., and Agallia enervis, Uhl., 

 and two highly-coloured examples from California came with the name 

 Agallia longula. Uhl. The Californian material was received from Mr. 

 Coquilleit ; those from Arizona were from the Morrison Collection, and 

 the specimens from Colorado I owe to the kindness of Prof. C. P. Gillette. 



Mr. Uhler's M. S. name, venata, would be appropriate for this species, 

 but it is too near the European venosa. The other names, enervis and 

 longula^ are inapplicable to the more typical examples, so 1 have taken 

 the liberty of applying to it the name of the well-known scientist who first 

 recognized the species. 



5. Thamnotettix atridorsum, ;/. sp. 



Allied to Th. mofuata. Female : Pale yellow, washed with green 

 above, especially on the pronotum and elytra. Beneath tawny yellow, or 

 whitish on the venter ; disc of the tergum, at least basally, the metaster- 

 num and basal segment of the venter commonly, tip of the rostrum, sides 

 of the oviduct and two spots, sometimes coalescing, on the middle of the 

 apical margin of the last ventral segment, black. Elytra subhyaline, a 

 little smoky at apex, in some examples quite strongly washed with 

 greenish ; nervures strong, greenish. Wings hyaline, iridescent. Vertex 

 produced and quite strongly angled before, length at the middle twice 

 that next the eye and nearly equal to that of the pronotum ; median 

 impressed line distinct to beyond the middle. Front rather broad, show- 

 ing about six pale brown arcs above. Clypeus scarcely widened toward 

 the rounded apex, sides rectilinear. Cheeks obtusely angled and longi- 

 tudinally wrinkled externally. Eyes and antennal setae pale brown. 

 Sides of the pronotum short, carinate. Last ventral segment long and 

 narrow, sides regularly arcuated from the truncated apex to the. base. 

 Length, 4}^ mm. 



Colorado. Described from three female specimens received from 

 Prof C. P. Gillette. This species is proportionately broader and shorter 

 than. 2^/^. inomata, the pronotum is shorter and more concave behind and 



