UHLER ON INSECTS. 785 



ValUopsis new sp. 



A few specimeus were obtained both at Cauou City aud at Colorado 

 Springs, August 11 to 17. 



Agapostemon tricolor St. Farg. 

 Not rare in the vicinity of Colorado Springs, Angust 13 to 17. 



Agapostemon new sp. 



A few specimens were taken near the foot-hills west of Colorado 

 Springs, August 13. 



Andrena 'polygama Davis. 

 Two specimens captured at Mauitou, August 13. 



HaJ ictus new sp. 

 Kot rare in the valley of the Arkansas west of Canon City, August 11. 



GoUetes consors Cresson (?). 

 A few specimens occurred at Caiion City on flowers, August 11. 



Fam. VESPID^. 



PoJistes mirifer Sauss. 



An exceedingly abundant species on various kinds of flowers, such 

 as Polanisia and golden-rod, in the vicinity of Denver, in Beaver Brook 

 Gulch, and in Clear Creek Caiion, early in August. 



Uumenes occidentalis Cresson. 



Moderately common in Beaver Brook Gulch and in Clear Creek 

 Caiion, August G. 



Odgnerus new sp. 

 Common in the vicinity of Colorado Springs, August 13 and later. 



Folyhia Jiavitarsis Sauss. 



A few specimens were flying around flowers in Beaver Brook Gulch 

 and in Clear Creek Canon, August 6 and 7. ^ 



Fam. CRABRONID^. 



Gerceris new sp. 

 Moderately common in Clear Creek CaQon, August 7. 



Eucerceris fidvipes Cresson. 



Many specimens seen and a few captured in the vicinity of Colorado 

 Springs, August 13 and later. 



Philanthus laticinctus Cresson. 



A few specimens were taken in the valley of the Arkansas, near 

 Canon City, August 11. 



Philanthus new sp. 



Xot uncommon on the heads of Polani.sia and other flowers in the 

 western suburbs of Denver, August 8 and later. 



TJigreopus coloradensis Pack. 

 Moderately scarce in Clear Creek Canon, August 7. 



