292 PROCEEDINGS OF THE NATIONAL MUSEUM vol. io4 



of the push-ups were 5 or 6 inches in diameter, and as much as 4 

 inches high with the burrows descending to a depth of 6 or more feet. 



An area which encompassed several old slumped burrows was 

 excavated and it yielded three third-stage larvae in pupal cells. One 

 cell was at a depth of bji feet, the others were at 6 and 6)^ feet. From 

 the position of the cells it seemed probable that they branched off a 

 central burrow, but this could not be definitely ascertained. 



One cell was found in which the larva had failed to develop. This 

 cell was composed of tightly packed cow dung 2}^ inches long and three 

 fourths of an inch in diameter. Also a number of old cells were 

 found, but it was impossible to tell if the food had been dung or 

 surface litter. 



Only the three tlurd-stage larvae were found and no information 

 on the other immature stages was obtained. 



The range of the species is rather similar to that of Piltotrupes 

 profundus, being the western part of central and northern peninsular 

 Florida from Citrus to Columbia Counties. 



Mycotrupes cartwrighti Olson and Hubbell 



Mycotrupes cartwrighti Olson and Hubbell, in Olson, Hubbell and Howden, 1954, 

 pt. 1, pp. 20-24. Type, male, Leon County, Fla., 6.5 miles east of Talla- 

 hassee, Hubbell (UnMich). 



The species can usually be distinguished by its large size (15 to 20 

 mm. in length), the faWy uniform circular granulations of the elytra, 

 elytral apices usually joining without forming a notch, the large 

 elongate tubercle behind the median anterior pronotai margin in the 

 male, the V-shaped tubercle connected to the margin in the female, 

 and the slightly incurved ventral tip of the phallobase (pi. 5, fig. 5) 

 of the male genitaha. 



The habits of the adults probably do not differ greatly from retusus 

 or gaigei. Several specimens examined were labeled "at dung" and 

 one specimen was labeled "light." 



The species ranges across northern Florida and southern Georgia 

 in almost a straight line from Atlantic Beach, Fla., to ThomasvUle 

 and Americus, Ga. 



Mycotrupes pedester Howden 



Mycotrupes pedester Howden, in Olson, Hubbell and Howden, 1954, pt. 1, pp. 

 24-28. Type, male, Punta Gorda, Charlotte County, Fla., Ramstadt 

 (UnMich). 



This species, which is closely allied to cartivrighti, can be distin- 

 guished by its normally small size (13 mm. to 16 mm. in length), by the 

 fairly uniform and well separated granulations of the elytra, by the 

 male genitalia (pi. 5, fig. 8), by the elytral apices which usually form 

 a small notch where they meet, and by the sharply delimited posterior 



