220 DAVENPORT ACADEMY OF NATURAL SCIENCES. 



orado River in eastern San Diego County on dark sand or ordinary 

 soil by ponds and rivers. It is scattered and moderately shy. 



C. pusilla Say. Apparently very rare. Schaupp notes its occur- 

 rence on moist mud in the Platte and other river valleys. C. terricola 

 Say, was taken by the expedition from the California Academy of Sci- 

 ence at San Pedro Martir and Sierra el Chinche, Baja California, in 

 September and October. 



C. hirticoUis Say. Has much the same habits as repanda but is less 

 commonly found in the interior. On the Atlantic beaches it is com- 

 mon. It is also to be had in less profusion along the shores of the 

 great lakes and about the banks of smaller bodies of water, lakes or 

 rivers. At Iowa City I took a few in August on a sand bar in the 

 Iowa River. In California it has been taken by Mr. Fall along the 

 Colorado River during July, and on Long Beach in August. Dr. 

 Blaisdell took it at San Diego and in San Francisco County in April, 

 flying in company with latesignata and gabhii. He noticed it chiefly 

 on dark muddy shores along ocean and bay beaches or on the near-by 

 flats. White sand was less productive. 



C. cinctipennis Lee. It is said to occur "on muddy plains near 

 rivers." I took a lot of the green form on the muddy flats bordering 

 the Little Colorado River at Winslow, Arizona, in July. But the 

 brown form seems to have different habits, since I got it in abundance 

 along a sandy road running through a grove near Buena Vista, Color- 

 ado, in July It is only moderately shy. Mr. Roland Hay ward also 

 found this brown form on the Placerville road. Horsefly Peak Divide, 

 San Miguel County, Colorado, July 13. It occurred in swarms but 

 not intermixed with other species. " From memory only," he writes, 

 " I should say the soil was sandy, the country mountainous and rather 

 thinly wooded or grassy. The beetles occurred along the road and 

 near springs." The western variety, imperfecta Lee, is abundant 

 locally at various points in Idaho, Oregon and Washington. I once 

 came across iv in numbers, early in June, along the banks of a creek 

 near The Dalles, Oregon. 



C. luiialoj2ga Schaupp. The type is from Sierra County, California. 

 So I am told by Mr. Chas. Fuchs who has the specimen in his collec- 

 tion. It was taken in July. 



C. rectilatera Chaud. Abundant on river bars and sandy banks in 

 southern Texas. I have taken great numbers at Columbus and Hous- 



