lO SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 94 



on the sides of the gvila (gu) and extending from the maxillary 

 articulation to the foramen magnum and the lateral extensions of 

 the occiput, from which they are not separated. The vertex itself 

 occupies nearly the entire dorsal aspect of the head and most of the 





Fig. I. — Morphology of the head of Creophilus villosus (Grav.). 



A, dorsal and ventral aspects of head with appendages removed. B, minute 

 setae and pores from terminal segment of antenna. C, detail of joint between the 

 tenth and eleventh segments of antenna. D, antenna. E, lateral aspect of head 

 with appendages removed. F, sagittal section of head to show tentorium. G, dorsal 

 aspect of labrum. H, ventral aspect of labrum. 



lateral aspects as well. The area between the eyes, from the anterior 

 tentorial pits to the occiput and the areas immediately behind and be- 

 neath the eyes as far as the postgenae are all a part of this sclerite 

 (fundamentally a pair of sclerites, one on each side of the midline 



