44 U.S. NATIONAL MUSEUIVI BULLETEN 2 79 



LI: head capsule width 2.64 to 2.85 mm.; 4 specim.ens. 



LII: head capsule width 3.52 mm.; 2 specimens. 



LIII: head capsule width 4.04 to 4.83 mm.; 15 specimens. 



Description of Third Stage Larva 

 Figures 29 and 57 



Cranium dull red brown, with about 11 to 1 8 setae near each antenna. 

 Frons without posterior frontal setae. Each anterior angle of frons 

 with about 3 to 7 setae. Epipharyns with about 16 to 22 stout setae 

 near anterior border on each side of cory^ha. Paria with about 19 to 32 

 anterior setae and about 7 to 11 stouter posterior setae on each side. 

 Glossa with 4 sensory spots and about 13 to 17 setae dorsally; with 

 2 sensory spots and 2 long setae ventrally. Maxilla with stipes bearing 



I to 3 setae on exterior surface. Maxillary stridulatory area with 

 longitudinal row of about 15 to 20 stridulatory teeth. 



Prothorax with about 30 to 45 setae on lateral lobe. With 1 seta on 

 infraepisternal area; infracpimeral area with about 6 to 10 setae. 



Mesothorax with about 22 to 30 setae on lateral lobe. Infraepisternal 

 area usually without setae; infracpimeral area with about 10 to 14 

 setae. 



Metathorax with transverse row of about 1 2 spinules and 4 setae on 

 smaller dorsal lobe (DL2). Anterior lateral lobe (LLl) with about 7 to 



II setae. Posterior lateral lobe (LL2) with about 21 to 25 setae. Infra- 

 episternal area usually without setae; infracpimeral area with about 

 10 to 14 setae. 



Legs with each tibiotarsus with terminal whorl of 6 setae plus about 

 14 to 18 setae proximad of whorl. 



Abdomen with transverse row of spinules on DLl of segments 1 

 through 6. Segment 7 with transverse row of spinules posterior to row 

 of sparse setae on DLl. 



Qmorgus monachus (Herbst) 



Trox monachus herbst, 1 790, Natursystem aller bekannten inund auslandischen 

 Insekten, vol. 3, p. 25, pi. 21, fig. 7. 



Description based on the following material. Thirteen larvae reared 

 from 2 adults collected under an old crow carcass at the Boyce Thomp- 

 son Institute Forest Research Laboratory, Hardin Co., Tex., May 12, 

 1964, by Robert I. Gara. Eight larvae collected beneath a pile of 

 chicken feathers 4.0 miles north of Bronson, Sabine Co., Tex., July 7, 

 1964, by David R. Smith and Charles W. Baker. 



