THIS CANADIAN ENTOMOLOGIST. 127 



inner border of the eye, must be depended upon to separate it. The 

 mesothorax has two delicate grooves. 



Hab. — Florida. 



This species is dedicated to my friend, Dr. Geo. H. Horn, the dis- 

 tinguished American Coleopterist. It is at once distinguished from the 

 European hwstemma Bosci by its stouter form, shorter horn ; in that 

 species the horn projects over the entire head ; and by its differently col- 

 ored legs. 



80 (2). Inosteinvia Cressofii, n. sp. 



$. Length, .09 to .10 inch. Robust, black, finely punctate. It is 

 at once distinguished from /. Hornl by its larger, more robust form, its 

 much stouter horn, which is of a uniform thickness throughout, not nar- 

 rowed at base, and by having rufous colored tibiae and tarsi. 



Hab. — Florida. 



Described from two specimens and dedicated to my friend, the learned 

 American Hymenopterist, Mr. E. T. Cresson. 



81 (3). Inostemma Riley i, n. sp. 



$ , %. Length, .04 inch. Black, polished. This species is at once 

 distinguished from all others by its much smaller size, rufous colored 

 femora and tibiae, sometimes obfuscated in the middle, and the horn in. 

 female extends only to the base of the head. 



Described from ten specimens, and dedicated to my friend, the emin- 

 ent economic Entomologist, who so ably fills the position of U. S. Ento- 

 mologist, Dr. C. V. Riley. 



82 (4). Inostemma Packardi. n. sp. 



% . Length, .07 inch. This species is at once distinguished from the 

 others by the brevity of its horn, which reaches only slightly beyond the 

 middle of the thorax and obliquely truncate at tip, not rounded as are the 

 tips in the other species. Head and pleurae punctate. Antennae black, 

 scape reddish at base. Legs red, cox^ at base black. Wings hyaline, 

 submarginal vein black. 



Hab. — Florida. 



Described from one specimen, and dedicated to my learned friend, 

 Prof A. S. Packard, from the study of whose excellent work, " Guide to 

 the Study of Insects," I early derived so much benefit and imbibed some 

 of my love for the study of insects. 



