June, I9I7-] SCHAEFFER : NORTH AMERICAN ClERID^. 127 



described from three examples collected by Gustave Beyer in the 

 Rincon Mountains, Southern Arizona. 



To the localities for the true fossor of the Eastern States may 

 now be added Staten Island, N. Y., on the up-beach at Ward's Point, 

 Tottenville. On June 5, 1914, the writer was seated on the sand by 

 the trunk of an ailanthus tree that is destined to be killed by the 

 encroaching sea, when a small turtle-shaped beetle, about five milli- 

 meters in length, was seen to move an inch or two in the sand, which 

 it closely resembled in color. If I kept quiet it would move about 

 frequently, but only an inch or two at a time. I soon .found that 

 there were others about and that they sometimes buried themselves 

 in the sand; occasionally upon carefully examining a small area, I 

 would see one suddenly appear on the surface from its subterranean 

 wanderings. They were really quite common and a considerable 

 number were soon collected. 



On September 18, 1914, Mr. Charles W. Leng visited the locality 

 with me and we looked about on the surface for Amniodonus. There 

 were none, but by digging four or five inches below the surface, 

 among the roots of the large crab grass, Synthcrisma sanguinalc L., 

 •vve collected a number, though of course they could not be found as 

 commonly by this method as in early summer when they came to the 

 surface in the sun. On May 14, 1915, several were found about a 

 quarter of a mile to the eastward along the beach, and on July 9 and 

 10, 191 5, the original locality was visited by Mr. Ernest Shoemaker, 

 Mr. Lewis B. Woodruff and the writer, when the beetles were again 

 collected in considerable numbers. Four pairs were found in copula- 

 tion, and the male was observed to be smaller and narrower than the 

 female; also the males seemed to be generally darker, that is to have 

 some of the scales worn off of their elytra. 



