784 BULLETIN UNITED STATES GEOLOGICAL SURVEY. 



Megacliile coloradensis CressoD. 

 IsTot rare at Colorado City, August 13. 



Megacliile inimica Cresson. 

 Moderately common in the vicinity of Denver, August 5 to 9. 



Megacliile new sp. 



A few specimens only were captured in Clear Creek CaQon, August 6. 



Megacliile new sp. 



Three new|pecies were found near Colorado Springs, on the flowers 

 of the plains, August 13 and later, 



Ccelioxys editJia Cresson. 



Not rare In the region around Colorado Springs, August 13 and 

 later. 



AntJiidium zebratus Cresson. 

 Moderately common near Colorado Springs. 



Anthidium occidentalis Cresson. 



Found in the same place as the preceding. Generally captured while 

 flying upon the heads of sunflowers and other kinds of flowers. 



Antliidium macuUfrons Smith. 



This very neat insect was found upon the flowers of EupJiorhia in the 

 western suburbs of Denver. It was not abundant, but seemed rather 

 tame and easy to capture, August 8. 



Panurgus new sp. 



Common on the white flowers of Eupliorhia, in and near Denver, Au- 

 gust 5 and later. 



Panurgus new sp. 

 Two other new species were common on flowers in the region around 

 - Colorado Springs, August 13. 



Panurgus new sp. 



Common on a narrow-leaved EupJiorhia in the vicinity of Caiion City, 

 August 10 and 11. 



Panurgus cetliiops Cresson. 



Not rare in the western suburbs of Denver, August 5 to 18. On the 

 heads of several kinds of flowers. 



Nomada new sp. 



Two new species of this genus were common on flowers in the vicinity 

 of Colorado Springs. 



Epeolus new sp. 



Found near Colorado Spriugs, August 17. Only a few specimens 

 seen. 



SpJiecodes new sp. 

 Common near Caiion City, August 11. 



