20 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 94 



anterior border of the coxal cavities. It is heavily sclerotized and 

 pigmented, and bears a few setae on its mesal part and a group of 

 five or six minute punctures near the middle of each lateral side. 



Fig. 3. — Morphology of the thorax of Creophilus villosm (Grav.). 



A, dorsal and ventral aspects of thorax, showing general relationship of parts. 

 B, prothoracic trochantin. C, notal lobe of prothorax. D, detail of processes of 

 pronotal lobe. E, mesothoracic peritreme and spiracle. F, group of setae from 

 membrane between prothorax and mesothorax. 



The furcasternum is much shorter than the basisternum, less heavily 

 sclerotized, and without vestiture or sculpture, except for the minute 

 pores or pits found on most of the prothoracic integuments. 



