WICKHAM THE HAP.ITS OF AxMERICAN CICINDELIDiE. 215 



C. purpurea Oliv. In grassy places by roads or in paths through 

 meadows. It is known to hibernate. At Bayfield, Wisconsin, I 

 found it in sandy roads through pine forests in July. Mr. Kemp finds 

 it in May and September on darkish sandy ground along edges of 

 timber in the vicinity of Atco, New Jersey. The black race, audii- 

 ho7iii Lee, is taken by Mr. P. C. Truman at Pierre and Volga, South 

 Dakota. He writes that it is less rare at the former place and is con- 

 fined, so far as his observation goes, to high grassy prairies in a light 

 clayey loam soil where some sand is present, never frequenting a heavy 

 clay soil nor spots where it is at all damp. It is not gregarious, no 

 more than two or three being seen together, and, though occasionally 

 found with or near purpurea and vulgaris, the association always 

 seemed accidental. He has not been able to find any spring brood, 

 always taking the species after August 25 (though I had one in my 

 own collection from Brookings, South Dakota, with the date April 

 18), and it seems most plentiful in September, continuing until hard 

 frosts. To find it he goes out on warm, still afternoons, slowly fol- 

 lowing some little-used country road through or near unbroken prairie 

 where grass is thin and short. Thus an occasional individual is scared 

 up, and flying a short distance, alights again in the bare track or 

 among the adjacent grass. Mr. Knaus has "a single specimen only, 

 taken in August, six miles north of Salina, Kansas, along red clay 

 roadside in company with purpurea and splendiday Dr. Williston 

 met with it abundantly in early spring. He found it most commonly 

 in open clayey bottoms of ravines near the chalk washes on the Lar- 

 amie plains, Wyoming. In Colorado, Mr. Oslar has found it occur- 

 ring "pretty generally over the foot-hills" about the end of March. 

 C. graminea Schaupp, the green form, was described from Kansas and 

 California. I took it at Denver, on a vacant lot, in June, and Mr. 

 Oslar finds it well distributed over the foot- hills at the same time as 

 the preceding variety. There are two broods. At Volga, South Da- 

 kota, Mr. Truman takes graminea abundantly, some of the specimens 

 running closely into the type form of the species. He wrote that it 

 is " double-brooded, being seen in May and June and again in August 

 and September. It delights in company, congregating w'lXh putpurea, 

 vulgaris, repanda and \2guttata on sandy lake shores and in sandy 

 pits and cuttings. I have oftenest found it on the margin of one of 

 our small lakes, along the side bounded by a wooded bluff. Have 

 also taken it on an old prairie road occasionally, but that seemed not 



