THE CANADIAN ENTOMOLOGIST. 309 



Thamnotettix gladiola, n. sp. 



Size and form of longiseta nearly. Yellowish green with the vertex 

 tinged with orange. Length 4.5 mm. 



Vertex broad, rounding, almost parallel margined, very slightly longer 

 on middle than against the eye, twice wider than long, evenly rounding to 

 the moderately sloping face. Face moderately broad, not inflated, mar- 

 gins straight to just before the apex, one-half longer than its basal width. 

 Elytra moderately long, slightly exceeding the abdomen. Venation 

 regular, the outer anteapical cell variable, rarely not complete. 



Colour : Vertex bright lemon yellow, often with an orange tinge. 

 Face yellow, the front tinged with orange, a black spot just outside the 

 lorse. Pronotum pale orange yellow, an arcuated green line on anterior 

 disc. Scutellum lemon yellow. Elytra yellowish green, subhyaline, 

 allowing the black markings on tergum to show through. Tergum and 

 venter often black lined. 



Genitalia: Female segment two-thirds as long as its basal width, 

 posterior margin deeply, triangularly emarginate, the emarginalion starting 

 at the acute lateral angles and extending to one half the depth of the 

 segment at the truncate apex, where it is one-fifth the width of the 

 segment. Male valve short, obtusely rounding, plates together attenuately 

 triangular, almost twice as long as their basal width, the margins heavily 

 fringed with long hairs which almost conceal two long sword-like black 

 points which extend beyond the plates. 



Described from six examples from Dutch George's North Park, and 

 Lizard Head, Colorado, all collected by the author. 



Thamnotettix uvibratica, n. sp. 



Form and colour of cyperacea nearly, much smaller and with a 

 longer vertex. Pale straw with black dots on the vertex margin and 

 three pale brown stripes on vertex and pronotum. Length, female, 4.5 

 mm. ; male, 4 mm. 



Vertex right angled, longer than its basal width, twice as long on 

 middle as against the eye, disc flat, acutely angled with front, the margin 

 slightly rounding. Front narrow, wedge-shaped, nearly twice longer than 

 wide. Pronotum about equalling the vertex in length, elytra moderately 

 long, slightly exceeding the abdomen, flaring. Venation regular, distinct. 



Colour : Vertex straw yellow, usually the ocelli and a dot at apex 

 black, a brown median stripe and sometimes a pair of lateral stripes next 

 the eyes black. Sometimes all these markings are obscure. Face pale 



