64 U.S. NATIONAL MUSEUM BULLETIN 279 



Figures 3-8 



3. Trox scaher (Linnaeus). Epipharynx. 



4. Trox sonorae LeConte. Epipharynx. 



5. Trox spinulosus dentibius Robinson. Epipharynx. 



6. Trox aequalis Say. Epipharynx. 



7. Trox unistriatus Beauvois. Epipharynx. 



8. Trox fascifer LeConte. Epipharynx. 



