98 



PEELIMINARY LIST 



iriiainnoteitix geminata YanD. Det. VanDuzee. 



Colorado (VanDuziee. 4). 



Dolores, June 18th (Gillette) . 



iriiainnotettix gillettei VanD. Det. YarDuzee. 



Colorado (Gillette— see VanDuzee, 2). Colorado (VanDuzee, 4). 



Steamboat Springs, July 26th (Gillette). 



"Thamnotettix infiiscata n. sp. 



Face about an eight h wider than long ; clypeus one-fourth longer than wide, not at all 

 contracted in the middle, sides parallel, very slightly narrowed towaids the tip, basal 

 suture slightly curved; lorae as long and sliglitly 

 more than one-half as brjad as the clypeus; genae 

 broad, somewhat concave below the eyes, outer 

 margin evenly rounded; front scarcely longer than 

 broad, four-fifths longer than the clypeus, gradually 

 narrowing below, superior angle little greater than 

 a right angle and rather pointed. Face and anterior 

 balf of vertex shagreened. Disc of vertex with a 

 transverse median depression and with a small pit 

 on either side basal ly close to the eyes, length at 

 the middle once and two-thirds that next the eyes, 

 Width between the eyes once and tliree-fourths the 

 length at the middle. Pronotum eight-ninths 

 wider than long, length once and two-thirds that of 

 the vertex, curvature five-elevenths of tlie length, 

 smooth anteriorly, posterior two-thirds finely trans- 

 versely wrinkled and with numerous scattered sub- 

 obsolete dark punctures, posterior margin slightly 

 concave, sides little longer than in T. atridorsum, and 

 with adistinctcarina. Scutellum finely shagreened, 

 the transverse groove curved forwards. Last ven- 

 tral segment with hind margin concave, posterior 

 angles subacute, obliquely cut off. Color yellowish. 

 Face and '^ertex smoky j'ellow. 'Pronotum dark 

 with yellow interior and lateral margins. Scutel- 

 lum yellow, within the posterior angles smoky, two 

 dark dots before the posterior line. Elytra dark 

 smoky, subhyaline, darker on the shoulders, veins 

 yellowish. Abdomen with segments black, mar- 

 gined apically and laterally with yellow. Venter 

 with two last segments and pygofers yellow. Legs 

 sordid yellow, tips of tarsi infuscate, black spots 

 at baee of tibial spines. 



Length 6 mm. Described from one female. 



Estes Park, July 12tli (Gillette). 



Thamnotettix kennicotti Uhl. Det. VanDuzee. 



Colorado (VanDuzee, 4). 



Fort Collins, May 8tlr, Spring Canon, May lltli (Gillette). 



Thamnotettix laeta Uhl. Det. VanDuzee. 



From mountains near Beaver Brook, August 6th (Uhler, 5). High mount- 

 ains, June lyth to September 6th (Carpenter— see Uhler, 6). Colorado (Van- 

 Duzee, 4). 



