6 



A considerable hnmber of specimens examined by me expand 

 1.75 to 1.85 inch, and average about an incli in lengtli of body as 

 near as may be. 



Heiuaris marginalis, Orotc, Plate 2, fig. 10. ? . 



Thorax above yellowisli shading to olivaceous, the squamation becoming 

 deep yellowish over the basal abdominal segments dorsally. Middle abdom- 

 inal segments black ; the two pre-anal deep yellowish. Anal tuft black with cen- 

 tral yellowish hairs ; beneath, the abdomen is black, the yellowish hairs of 

 the preanal segments extending downwardly at the sides. Legs black ; ante- 

 rior pair with pale scales along the tarsi and tibiae inwardly. Thorax beneath 

 sulphur white. The body seems narrower, more fusiform than in the other 

 species and the squamation more depressed. Wings largely vitreous, orna- 

 mented as usual, but with a wider terminal band on the primaries than is pos- 

 sessed by H. diffinis. The inner edge of this marginal band is plainly den- 

 tate inwardly on the superior interspaces. There is a reddish apical stain as 

 in H. diffinis. 



Expanse, l.%h io 1.10 mch. Length of body, .95 inch. 



Both sexes of this species have been obligingly communicated to 

 me from Michigan by Mr. Herman Strecker. This is smaller, but 

 otherwise closely allied to H. axillaris. Grate, from Texas. 



Hemaris axillaris, Orote, Plate 1, fig. 9, primary wing. 



Sesia axillaris, Grote and Robinson, Trans. Am. Ent. Soc, Vol. 1, p. 23, 1868. 



This species differs from H. marginalis by the much wider and 

 more strongly dentate marginal band of the fore wings, exhibited 

 in the present illustration. It is our most robust species. It is 

 from Texas. On its discovery we expressed our views of the se- 

 quence of the species of the genera Hemaris (Sesia), and Haemor- 

 rhagia, which should be modified, since the examination of all the 

 new species here described, in so far, that we are now decidedly un- 

 willing to reunite them in a single genus, and disposed to insist on 

 the retention of Haemorrhagia as a distinct structural t}^e. I de- 

 sire to express my obligations to Mr. Theo. L. Mead for the kind 

 manner in which he has placed my types of this species at my pres- 

 ent disposition. They passed into the possession of the Central 

 Park Museum, with the large collections of the late Mr. Coleman 

 T. Robinson and myself, at Mr. Robinson's desire. 



