236 Journal New York Entomological Society. [^oi. xx. 



This remarkably distinct species requires little comparison with 

 the other forms at present known. The plain brown tibiae and the 

 remarkable venation will serve to distinguish the species at a glance. 



Explanation of Plate XVI. 

 These figures show the venation, and the main features of color-pattern. 



wing of Brachypremna similis Williston. 



wing of Brachypremna dispeltens Walker. 



wing of Brachypremna unicolor Osten Sacken. 



wing of Brachypremna breviventris Wiedemann. 



■King oi Brachypremna williamsoni, n. sp. 

 /, wing of Brachypremna Candida, n. n. 



