356 New S2}ecies of Cyjjselidm. 



Hahitat, New Grenada, Bogota. Type in my collection. 



Kemarhs. — This species differs from all its allies in its much 

 smaller dimensions, and in the character of the collar in front. 



The regular gradation in size of the four species of this genus 

 is remarkable — the difference in total length and in that of the 

 wing, between each, being approximately one inch. 



H. semicoUaris is in length 10 inches ; the wing, 10. 

 IT. zonaris, " 9 " " 9. 



H. Mscutata, " 8.1 " " 8.3. 



B. minor, " 7 " " 7. 



The localities of the several species are as given below : — 



H. semicoUaris seems to be strictly confined to Mexico, and 

 is very rare in collections. 



H. zonaris is the most widely distributed species, being noted 

 from Brazil and the Argentine Republic; 1 have specimens, 

 also, from Jamaica and from Guatemala. 



H. Mscutata, I think, has been found only in south-eastern 

 Brazil ; I obtained my specimen of it from a collection sent from 

 Rio Janeiro. 



H. minor, so far as known, inhabits only New Grenada. 



