34 U.S. NATIONAL MUSEUM BULLETIN 279 



Mesothorax with about 10 to 13 setae on lateral lobe. Infraepisternal 

 area usually without setae; infraepimeral area with about 3 to 5 setae. 



Metathorax usually Vv^ith or 1 seta on anterior lateral lobe and 

 about 7 to 1 1 setae on posterior lateral lobe. Infraepisternal area 

 usually without setae; infraepimeral area with about 2 to 6 setae. 



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

 transverse band of about 21 to 34 spinules; DL3 with transverse row 

 of about 6 to 1 1 spinules. Segment 7 with transverse band of about 

 25 to 29 spinules or spinules and spiniform setae on DLl. DL2 with 

 about 2 to 4 small spinules plus transverse row of setae. DL3 with 

 transverse row of about 5 to 15 small setae. 



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

 3 setae on LLl; LL2 with about 2 to 5 setae; LL3 with about 1 to 



3 setae. 



Trox tuberculatus (De Geer) 



Scarabaeus tuberculatus De Geer, 1774, Memoires pour servir a I'histoire des 



insectes, vol. 4, p. 318, pi. 19, fig. 2. 

 Trox tuberculatus (De Geer) Vaurie, 1955, Bull. Amer. Mus. Nat. Hist., vol. 106, 



p. 51. 



Description based on the following material. Twenty larvae reared 

 from an aggregation of 18 adults collected as follows: 14 adults collected 

 under a crow carcass and a cow carcass at the Boyce Thompson 

 Institute Forest Research Laboratory, Hardin Co., Tex., July 3-5, 

 1964, by Robert I. Gara, David R. Smith, and Charles W. Baker; 



4 adults collected under chicken remains in a dumpsite about 4.0 miles 

 north of Bronson, Sabine Co., Tex., July 7, 1964, by David R. Smith 

 and Charles W. Baker. 



LI: head capsule width 1.45 to 1.58 mm.; 3 specimens. 

 LII: head capsule width 1.82 to 1.98 mm.; 4 specimens. 

 LIII: head capsule width 2.44 to 2.63 mm.; 13 specimens. 



Description of Third Stage Larva 

 Figures 15 and 37 



Cranium red brown to dark red brown, with about 5 or 6 setae near 

 each antenna. Postclypeus usually with 2 setae on each side, if 3, then 

 third is very short. Epipharynx with about 7 to 9 setae on each side 

 of corypha. Sensory area of haptomerum usually with 2 smaller sensory 

 spots distad of 2 larger, setiferous sensory spots. Haptomerum also 

 usually with 3 to 4 setae on each side caudolaterad of sensory area. 

 Anterior region of pedium generally with 4 sensory spots distad of 

 slightly arching, transverse row of about 12 to 14 sensory spots. Hypo- 

 pharynx with smaller distal area usually with 2 sensory spots distad 



