64 PRELIMINARY LIST 



finely rastrate, crossed by slender yellow lines, those of the case nearly straight, of the 

 middle broken and irregular, of the posterior third waved; yellow lioes of tlie corium very 

 short, wavy or irregularly sigmoid, beginning at base in two widely separated series and 

 continued towards tip in about five, partly brolten series; marks of the membrane short, 

 uneven, sigmoid or irregularly waved; the embolium fsic Fieber)is broad, whitish, marked 

 at base with a streak, with an oblique stripe on the cross vein, a spot some distance before 

 the tip and another at the tip, black. Beneath whitish yellow ; tergum black, excepting 

 the lateral border and tip, which are yellowish. 



Length to end of abdomen 7-8 mm. Width of pronotum 2.25-2.75 mm. Two specimens, 

 females, were sent to me from Colorado. A closely related species occurs in Texas and 

 California, but my series of them is too imperfect to afford accurate deductions. The 

 male is a desideratum." 



Fort Collins, June 25th at light (Baker). Spring Canon, 

 April 21st (Gillette). 



Corisa inscripta Uhl. 



Southern Colorado (Uhler, 8). 



Corisa hiterriipta Say. 



Sloan's Lake, west of Denver, August (Uhler, 5); same place in .July 

 (Packard — see Uhler, 5). 



Corisa striata L. 



Fort Collins, June 13th (Baker). 



Corisa siitilis Uhl. 



Mountains, .Tuly to September (Carpenter -see Uhler, 6), Sloan's Lake, 

 west of Denver, August 5th (Uhler, o). Common in the mountains of Colo- 

 rado (Uhler, it). 



Corisa tiiinida Uhl. 



Sloan's Lake west of Denver, July 10th (Packard— see Uhler, 5). Sloan's 

 Lake, in August, and also in several pools of water on the low grounds of 

 subiu'bs of Denver, August 5th and 8th (Uhler, 5). 



Colorado Springs, August (Tucker) . 



Cicada dorsata Say. 



Colorado (Thomas — see (Uhler, <>). 

 Cidada niarginata Say. Det. Baker. 



Canon City, August 31st (Gillette). 



Cicada tihicen L. 



Mountains of Colorado (Uhler, •3). 

 Proarna ralvata Uhl. 



Canon City, July 3d (Riley). 



Tibicen synodica Say. 



Common in eastern Colorado (Thomas and B. H. Smith— see^Uhler, 6). 

 Near Canon City, August llth (Uhler, 5). Southern Colorado,5June to July 



