LARVAL TAXONOMY OF THE TROGINAE IN NORTH AMERICA 35 



of transverse row of about 10 to 12 sensory spots. Maxilla with lacinia 

 with 3 unci and about 16 to 18 stout marginal setae. 



Prothorax usually with 1 or 2 setae on anterior and posterior lateral 

 lobes, with 1 seta on infraepisternal and infraepimeral areas. 



Mesothorax with about 1 1 to 12 setae on lateral lobe. Infraepisternal 

 area usually without setae ; infraepimeral area with about 3 setae. 



Metathorax usually with to 1 seta on anterior lateral lobe and about 

 5 to 6 setae on posterior lateral lobe. Infraepisternal area usually 

 without setae; infraepimeral area with about 3 setae. 



Abdomen (dorsal aspect) with DLl of segments 1 through 4 with 

 transverse band of abovit 24 to 32 spinules. DL3 with transverse row 

 of about 9 to 16 spinules. Segment 7 with transverse band of about 26 

 to 40 spinules on DLl. DL2 with about 6 to 12 scattered spinules plus 

 transverse row of setae. DL3 with about 2 to 5 scattered, small setae. 



Abdomen (lateral aspect) with segments 1 to 8 usually with about 



1 to 2 setae on LLl ; with about 3 to 6 setae on LL2; with about 1 to 



2 setae on LL3. 



Trox sonorae LeConte 



Trox sonorae LeConte, 1854, Proc. Acad. Nat. Sci. Philadelphia, vol. 7, p. 211. 



Description based on the following material. Forty-eight larvae 

 reared from an aggregation of 40 adults collected as follows : 5 at a cow 

 carcass about 18 miles south of Rodeo, Hildago Co., N. Mex., July 18, 

 1964, by Martin A. Mortenson and Mont A. Cazier; 6 at the same cow 

 carcass July 25, 1964, by David R. Smith and Charles W. Baker; 29 

 at a cow carcass about 6 miles east of Portal, Cochise Co., Ariz., July 24- 

 25, 1964, by David R. Smith and Charles W. Baker. Two larvae 

 reared from 12 adults collected at a sheep carcass about 6 miles south- 

 east of Sheffield, Pecos Co., Tex., July 17, 1964, by David R. Smith and 

 Charles W. Baker. 



LI: head capsule width 1.55 to 1.65 mm.; 10 specimens. 

 LII: head capsule width 2.01 to 2.21 mm.; 12 specimens. 

 LIII: head capsule width 2.48 to 3.05 mm.; 28 specimens. 



Description of Third Stage Larva 

 Figures 4, 20, 22, 23, 31, 35, 43, 45, 52, 53, and 56 



Cranium dark brown to black, with about 8 to 12 long setae near 

 each antenna. Postclypeus with 3 long setae on each side. Epipharynx 

 with about 10 to 13 stout marginal setae on each side. Sensory area of 

 haptomerum usually with 2 smaller sensory spots distad of 2 larger, 

 setiferous sensory spots. Haptomerum also usually with 3 setae on each 

 side caudolaterad of sensory area. Anterior region of pedium usually 

 with 4 sensory spots distad of slightly arching transverse row of about 



