128 GEO. H. HORN, M.D. 



Whatever may be the affinities of this insect, it certainly is not a 

 Cteut'stf-s, while it appears to replace in our own fauna the Chennium or 

 Oentrotoma of the old world. There are no semblances of appendages 

 such as are seen on the outer edges of the palpi of genera near Cte- 

 ntsf.es and Ceiifrofoma, nor is there any stoutseta such as is found on the 

 last joint of the palpus of Ti/ra^. In the present genus the palpi are 

 so short as scarcely to exceed the mentum in length, and are conse- 

 quently very difficult to define without dissection, a matter of no great 

 ease in a Pselaphide. It is to be desired that sufficient specimens may 

 be found to warrant the sacrifice of some of them. 



Atinus monilicornis. 



Ctenisies monilicornis, Brendel, Proc. Ent. Soc. Phil. 18fi6, p. 190. 

 Collected by Mr. Fuchs in the mountainous region of East Tennes- 

 see. 



FusTiOER Fuciisil, Brendel (loc. cit.) — Dr. Brendel seems willing 

 to accord two ocelli to this insect, each containing three facets. Sev- 

 eral specimens in my cabinet, and that of Dr. LeConte have failed to 

 show any such structure even under the power of a quarter-inch ob- 

 jective. Dr. Brendel has without doubt been deceived by reflected 

 light from prominent points of sculpture. 



