22 THE CANADIAN ENTOMOLOGIST. 



the base in the middle, so that all that is visible of this segment is a 

 triangular strip on either side from under the margin of which another 

 more broadly triangular strip is exposed ; male, ultimate segment very 

 large, valve transverse, one-half as wide and one-third as long, the 

 posterior margin truncate, plates as wide as the valve and nearly four 

 times as long, apparently united for more than half their length, the 

 apices broad and individually rounding. 



Described from nine specimens from Los Angeles Co., Calif. 

 (Coquillett and Koebele), and four specimens from Pasadena, Calif. (H. 

 C Fall). 



This, and the following species, introduce a new subfamily into the 

 American fauna. It remains only to discover a Ledra and a Ulopa and 

 we shall have all the European groups represented. 



Paropulopa Mexicana, n. sp. — Resembling interrupta, but larger. 

 Front distinctly convex, elytra long and narrow. Pale testaceous brown 

 with fuscous pitting. Length, 3.5 mm.; width, 1.25 mm. 



Vertex slightly longer and more angular than in the preceding form, 

 fuller and less sharply angled with the vertex. Front full and distinctly 

 convex, a slight depression under the apex of vertex, the carinae under 

 the ocelli very faint. Pronotum shorter and broader than in interrupta, 

 the posterior margin straight. Elytra long, regularly tapering from both 

 margins, coriaceous, the claval suture often indistinct ; the venation 

 similar to interrupta, but weak and irregular posteriorly, no cross nervure 

 between the sectors before the anteapical cells. 



Colour : testaceous brown, with more or less of fuscous on vertex 

 and pronotum, chiefly in the coarse pits. 



Genitalia : female segment two and one-half times the length of the 

 penultimate, the lateral margins parallel to the middle, then suddenly 

 narrowed one-fourth the width of the segment and again parallel ; 

 posterior margin truncate or roundingly emarginate, with an open median 

 notch. 



Described from two females from the Sierra Madre Mts., Chihuahua, 

 Mex. Alt. about 7,500 ft. Collected by C. H. T. Townsend, and sent 

 by T. D. A. Cockerell. 



