142 



NOTES ON HETEROCERUS. 



By Geo. H. Horn, M. D. 



While attempting to bring order in an overcrowded box in my 

 cabinet, the specimens of Heterocerus had to be removed and their re- 

 placement elsewhere has cost me some little trouble in an attempt to 

 assort the specimens specifically. While I have not yet been able to 

 satisfy myself as to the validity of some of Kiesenwetter's species, certain 

 points of some interest have been developed. 



H. pusillus Say, Umbahis Kies. , luteolus Lee. This species is re- 

 markable in that the rj* has at the base of the mandibles a lobe which 

 overlaps the labrum, nearly meeting. This is our smallest species and 

 is very widely distributed. Dr. Hamilton takes it at Allegheny, Pa., 

 and I have it from Kansas, Texas, Arizona, Southern California and 

 Mexico. 



H. pallidus Say. This is the large pale species taken rather 

 abundantly by Prof Snow in Kansas and N. Mex. , extending also to 

 Arizona and Texas. 



Three species have been observed in which the labrum, ^, is more 

 or less produced at middle — labraius, ventralis fUnd pallidus. 



It is my hope to make it possible to determine our species, but the 

 difficulty of obtaining specimens from the region east of the Mississippi 

 is a great draw-back. No one seems to have collected them, and one 

 or two specimens by themselves are of little use. 



From the western regions (Cal. , Ariz., Tex.,) there is an abund- 

 ance of material. If those who can collect them will take as many as 

 possible and thereby assist in the work I have in hand, all will be 

 benefited. 



Book Notices. 



Bulletin No. i, of the Office of Experiment Stations, U. S. Depart- 

 ment of Agriculture is at hand, and contains the organization of the 

 various stations and matter of interest necessarily to entomologists. In 

 a late number of Entomologica Americana there was published a list of 

 the entomologists of the experiment stations which is rather incomplete 

 and not quite accurate. The receipt of this bulletin makes a more 

 complete list possible. 



Arkansas — C. W. Woodworth, B. S., Little Rock, Arkansas. 



^California— F. W. IMorse, Berkeley, Cal. 



Connecticut — Has no entomologist, but Dr. Roland Thaxter, the 

 mycologist, is well known as a good Lepidopterist, and prob- 



