THE CANADIAN ENTOMOLOGIST. 197 



ADDITIONS TO THE JASSID FAUNA OF N. A. (HOMOPTERA.) 



BV E. D. BALL, LOGAN, UTAH. 



Thamnoiettix Schwartzi, n. sp. 



Form and structure of Osborni nearly, slightly longer and narrower, 

 colour of geviitiata. Smoky cinereous, with two round black spots on 

 front of head, and two angled ones on scutellum. Length, 5 mm. 



Vertex blunt, rounding into front as in Osborni^ but still shorter, 

 margins almost parallel, twice wider than long, but little over half the 

 length of the pronotum. Front inflated, parallel margined to just before 

 the apex. Elytra long and narrow, very closely appressed, giving the 

 insect a wedge-shaped appearance. Venation similar to Osbor?ii, the third 

 apical cell extremely long and narrow. 



Colour. — Vertex pale yellow, slightly washed with orange, the ocelli 

 red, a pair of round black spots between them equidistant from the ocelli 

 and each other. Face pale yellow, the sutures dark, a few short smoky 

 arcs on lower part of front. Pronotum cinereous. Scutellum yellow, a 

 triangular black spot just within each basal angle. Elytra cinereous, the 

 costal margin subhyaline, a narrow smoky stripe at apex. Veins of 

 clavus and claval suture pale, veins on corium and a line along the claval 

 suture smoky, emphasized on a line which follows the outer sector omit- 

 ting its outer branch, and ends in the margin of the third apical cell. 



Genitalia. — Female segment one-half as long as its width, posterior 

 margin slightly rounding or sinuate, with a slight median projection as 

 wide as the ovipositor. Male valve short, plates together gibbous at base 

 and then rapidly narrowing into long, attenuate tips, one-third longer 

 than their basal width. 



Described from a pair from Dewey, Utah, collected by J. R. Horton, 

 and one female from Ash Fork, Arizona, collected by Barber and 

 Schwartz, and received from the U. S. National Museum. Named in 

 honour of Dr. Schwartz, of the National Museum, whose collecting in 

 Utah, Arizona and New Alexico has added so much to the knowledge of 

 the Homoptera of this region. 



Tham7iotettix Kirkaldyi, n. sp. 



Form of Osborni nearly, closely resembling geminata, smaller and 

 with a more inflated vertex than either. Length, $ 4 mm.; $ 3.5 mm. 



A^ertex rounding, one-half longer on middle than against an eye and 

 nearly as long as pronotum. Anterior margin rounding into front. Front 



June, 1911 



