THE CANADIAN ENTOMOLOGIST. 147 



SOME NEW NORTH AMERICAN FULGORIMl. 



BY E. D. BALL, FORT COLLINS, COLORADO. 



Some time ago, when about to publish a synopsis of the genus 

 Scoiops, the writer discovered that Dr. Uhler had the same genus in hand 

 and his MSS. ready for the press. As the result of the correspondence, 

 the writer dropped his work for the time, and Dr. Uhler promised to send 

 his types as soon as his paper was published. (Proc. Md. Acad. Sc, p. 

 401, 1900.) With his usual thoughtfulness, the Doctor sent on the types> 

 and with the aid of these and a fine series of eastern forms received from 

 Mr. Otto Heidemann the author has been able to definitely place all the 

 described species and recognize a number of new ones. 



The genus is found in its greatest abundance in the border line of 

 plain and mountain region, and so many new forms have been found here 

 in the past few years that there are no doubt many more to be found 

 on further search. 



All but one or two of the species have been found to occur in two 

 wing lengths; one in which the elytra are about the length of the abdomen 

 and the under wings very short and probably not functional ; the other in 

 which the elytra are long and flaring, the wings well developed. 



On account of the curved or angled nature of the cephalic process, 

 the measurement of its length is a somewhat difficult matter. In the 

 present paper the length given has been measured in a straight line from 

 the tip to the middle of the eye. 



Scoiops Osborni, n. sp. 



Form and structure of sulcipes, but larger and with a stouter process. 

 Colour pale yellow as in the lighter species of hesperius. Elytra light, 

 sparsely dotted with fuscous. Length: macropterous examples 11 mm., 

 brachypterous 9 mm.; length of horn 3 mm.; width 4 mm. 



Cephalic process long and slightly bent at the sulcus, larger than in 

 sulcipes and not constricted beyond the sulcus, as large as that of 

 hesperius, but regularly tapering anteriorly. Elytra with the two inner 

 nervures of corium forked well before the middle and one branch at least 

 of each again forked before the apex of clavus, cross nervures not as 

 numerous as in sulcipes and very faint except at apex. 



Colour : cephalic process and face yellow, pronotum and scutellum 

 straw colour, a pair of pitchy black spots on the sides of the pronotum 



