THE CANADIAN ENTOMOLOGIST. 267 



which is as wide as its median length. Pronotum broad and short, 

 scarcely longer than vertex. Elytra broad, only slightly longer than the 

 abdomen. 



Colour : Vertex pale yellow, a pair of large, nearly quadrangular 

 black spots on the margin just outside the ocelli, a still larger one on the 

 apex, triangularly forking posteriorly, and two small round ones on the 

 posterior margin equidistant from the median line and the eyes. Face 

 pale, with the sutures black-lined, those around the lorae heavily so ; a 

 pair of black spots above the antennae. Front smoky, set off from vertex 

 by an arcuated black line, the median line pale, triangularly widening 

 below, with about nine pale arcs on each side. Pronotum pale green, the 

 anterior margin lighter, submargin sometimes with faint dusky spots. 

 Scutellum pale powdery green. Elytra pale green, heavily powdered with 

 white. Venation obscure. 



Genitalia : Female segment as long as broad, slightly narrowing to 

 the truncate apex ; lateral margin depressed, a black line on the posterior 

 margin, sometimes reduced to two spots. Male valve broad and short, 

 bluntly angular, plates together, broadly triangular, their apices broadly, 

 slightly roundingly, truncate, scarcely exceeding the broad swollen 

 pygofers. 



Described from eight examples from Beaumont, California, collected 

 by the author. A large and readily recognized species. 



Thamnotettix Titiisi, n. sp. 



Size and form of melanogaster nearly. Slender, parallel, vertex 

 right-angled. Green, with the face and tip of elytra smoky. Length, 9 , 

 5.5 mm.; c^ , 5 mm. 



Vertex one-half wider than long, right-angled in front, the disc flat or 

 transversely depressed, roundingly angled with the front. Front much 

 narrower than in atridorsum, wider and more nearly parallel margined 

 than in melanogaster, distinctly longer than wide. Elytra long, narrow, 

 inclined to be flaring at the tips, giving the insect a parallel-margined 

 appearance. Venation simple. 



Colour : Vertex pale straw, inclined to be greenish at base, and 

 smoky or tawny at tip. The smoky front is visible from above on either 

 side the apex of vertex, and often there are a pair of oblique spots at the 

 base. Face pale, the front smoky, growing darker above, with numerous 

 pale arcs. Pronotum green, rarely with dark spots on the submargin. 

 Scutellum pale, sometimes a pair of small black spots at base. Elytra 



