102 Journal New York Entomological- Society. [Voi. xi. 



A REVIEW OF THE NORTH AMERICAN SPECIES 

 OF PRONUBA AND PRODOXUS. 



By Harrison G. Dyar. 



The late Dr. C. V. Riley was especially interested in these genera 

 and has published much valuable and detailed matter on their structure 

 and habits. His specific descriptions are, however, more or less in- 

 complete or scattered, except in his paper in the third report of the 

 Missouri Botanical Garden (pp. 99-158, pis. 34-43, 1892). As this 

 is a botanical journal, not usually accessible to entomologists, and as 

 Riley gives no synoptic tables, I have thought it advisable to treat 

 the forms from the standpoint of species in a brief synoptic form. It 

 will only be necessary to refer to Dr. Riley's account of the relations 

 of these insects to their host plants. 



Genus Pronuba Riley. 



Synopsis of Species. 

 Fore wings white. 



Fore wings unspoUed yuccasella. 



Fore wings spotted. 



Marginal spots distinct, separate maculata. 



Marginal spots clouded, confluent var. apicella. 



Fore wings not white. 



Fore wings dead black aterrima. 



Fore wings obscure, dull gray paradoxa . 



Pronuba yuccasella Riley. 



This well-known species is easily recognized by its pure white 

 fore wings and gray hind wings with white fringe, but it is so similar 

 to Prodoxus qiiinquepiinctelbis that it is very difficult to distinguish set 

 specimens. The pup!;e are entirely unlike. 

 Pronuba maculata Riley. 



The type specimens are from Caliente, Kern Co., Gal. The 

 variety apicella is from Los Angeles Co., Gal, from seeds of Yucca 

 whipplei. The black subapical spot of typical maculata is here pro- 

 duced into a blotch and a black clouding confuses and joins the 

 marginal spots. 

 Pronuba aterrima Trelease. 



Described as a variety of maculata (4th Rept. Mo. Bot. Gard., 

 216 note, 1893), but represents a distinct species, I should think. 

 The description reads : 



