30 U.S. NATIONAL MUSEUM BULLETIN 2 79 



spots distad of transverse row of about 10 sensory spots. Maxilla with 

 lacinia with 3 unci and about 12 stout marginal setae. 



Prothorax usually with 1 seta on anterior lateral lobe and 1 or 2 

 setae on posterior lateral lobe. Infraepisternal area usually with 1 

 seta; infraepimeral area usually with 1 or 2 setae. 



Mesothorax with about 4 to 6 setae on lateral lobe. Infraepisternal 

 area usually without setae ; infraepimeral area usually with 2 setae. 



Metathorax usually without setae on anterior lateral lobe, with about 



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

 without setae; infraepimeral area with about 2 to 3 setae. 



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

 single transverse row of about 14 to 20 spinules, DL3 with single 

 transverse row of about 4 to 10 spinules. Segment 7 with transverse 

 row of about 10 to 14 spinules on DLl. DL2 with scattered spinules 

 intermixed in transverse row of setae. DL3 with scattered setae. 



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

 1 seta on LLl ; LL2 usually with 3 setae; LL3 usually with 2 setae. 



Trox foveicollis Harold 



Trox foveicollis Harold, 1872, Coleopterologische Hefte, vol. 9, page 181. 



Description based on the following material. Thirty-six larvae 

 reared from adults collected under chicken remains about 4 miles 

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

 and Charles W. Baker. 



LI : head capsule width 0.93 to 0.96 mm. ; 9 specimens. 

 LII: head capsule width 1.20 to 1.30 mm.; 7 specimens. 

 LIII: head capsule width 1.61 to 1.74 mm.; 20 specimens. 



Description of Third Stage Larva 



Figure 36 



Cranium orange brown to light red brown, with about 6 long setae 

 near each antenna. Anterior setae of frons somewhat shorter. Post- 

 clypeus usually with 2 setae on each side. Epipharynx with about 



5 to 6 marginal setae on each side of corypha. Sensory area of hapto- 

 merum with 2 smaller sensory spots distad of 2 larger setiferous sensory 

 spots. Haptomerum also usually with 2 setae caudolaterad of sensory 

 area. Anterior region of pedium usually with group of 4 sensory 

 spots distad of slightly arching transverse row of about 10 sensory 

 spots. Hypopharynx with smaller distal area usually with 2 sensory 

 spots distad of transverse row of about 10 sensory spots. Maxilla with 

 lacinia with 3 unci and about 10 to 11 stout marginal setae. 



