48 U.S. NATIONAL MUSEUM BULLETIN 2 79 



Epipharynx with about 18 to 24 setae near anterior border on each 

 side of corypha. Paria with about 15 to 25 anterior setae and about 

 10 to 15 stouter posterior setae on each side. Glossa with 4 sensory 

 spots and about 12 to 16 setae dorsally; with 2 sensory spots and 2 

 long setae ventrally. Maxilla with stipes bearing about 1 to 4 setae on 

 exterior surface. Maxillary stridulatory area with longitudinal row of 

 about 15 to 30 stridulatory teeth. 



Prothorax with about 45 to 60 setae on lateral lobe. Infraepisternal 

 area with about 3 to 5 setae; infraepimeral area with about 14 to 18 

 setae. 



Mesothorax with about 35 to 50 setae on lateral lobe. Infraepisternal 

 area with to about 2 setae; infraepimeral area with about 24 to 32 

 setae. 



Metathorax with transverse row of about 10 to 15 spinules and about 

 4 to 8 setae on smaller dorsal lobe (DL2). Anterior lateral lobe (LLl) 

 with about 10 to 14 setae; posterior lateral lobe (LL2) with about 25 

 to 40 setae. Infraepisternal area with to about 2 setae; infraepimeral 

 area with 20 to 25 setae. 



Legs with each tibiotarsus with terminal w horl of 6 setae plus about 

 12 to 15 setae proximad of whorl. 



Abdomen with transverse row of about 1 5 to 20 spinules and about 

 16 to 30 setae on DLl of segment 7. 



Omorgus carinatus (Loomis) 



Trox carinatus Loomis, 1922, Journ. Washington Acad. Sci., vol. 12, p. 135, 

 fig. 1. 



Description based on the following material. Twenty-three larvae 

 reared from 6 adults collected at a dried coyote carcass about 2.0 miles 

 east of Rodeo, Hildago Co., N. Mex., August 7, 1963, by Noel Mc- 

 Farland and Chris Schuberth. 



LI: head capsule width 2.20 to 2.28 mm.; 3 specimens. 

 LII: head capsule width 2.99 to 3.08 mm.; 4 specimens. 

 LIII: head capsule width 3.78 to 4.22 mm.; 16 specimens. 



Description of Third Stage Larva 



Figures 12 and 28 



Cranium dark red brown to black, with about 14 to 23 setae near 

 each antenna. Each anterior angle of frons with about 6 to 9 setae. 

 Epipharynx with about 20 stout marginal setae near anterior border 

 on each side of corypha. Paria with about 12 to 25 anterior setae and 

 about 9 to 14 stouter posterior setae on each side. Median sense cone 

 of haptolachus with small group of phobae at anterior end. Glossa 



