NORTH AMERICAN COLEOPTERA. 287 



Cerataltica has open cavities also, and is placed in Aphthona. 



Ltiperaltica is a composite genus, one species being a Systena, the 

 other a Galerucidse. It should be entirely dropped from the litera- 

 ture. 



HEUIGIiYPTlIS u. g. 



Head inserted on the thorax as far as the eyes, the front obtusely 

 carinate and with two tubercles se})arated at middle. Eyes oval, 

 rather coarsely granulated. Antenna3 a little longer than half the 

 body, gradually thicker externally, joints 2-10 gradually longer, 

 eleventh longer. Clypeus truncate, labrum entire. Mandibles bi- 

 dentate at apex, the lower tooth shorter. Maxillary palpi moderate 

 in length, the terminal joint fusiform, acute, longer than the preced- 

 ing joint. Thorax truncate in front, base arcuate, a moderately 

 deep ante-basal transverse impression, limited at each end by a rather 

 deeper longitudinal impression. Prosternum separating the coxse, 

 dilated behind them, the coxal cavities rather widely closed behind. 

 Mesosternum oblique, metasternum moderate in length. Ventral 

 segments 2-4 equal, fifth a little longer, first as long as the next two. 

 Elytra with indistinct humeri, punctuation confused, rarely with a 

 substriate arrangement. Legs moderate in length, tibise gradually 

 broader to apex, outer edge rounded, the anterior and middle tibise 

 each with a slender spur ; posterior tibiae obliquely truncate at apex 

 and with a terminal spur. Tarsi two-thirds as long as the tibise, 

 claw joint slender, the claws appendiculate. 



This genus has been erected for a species of elongate, parallel form^ 

 recalling Prasoeuris, which must be referred to the Crepidodera 

 series and differing from all the genera known to me in the Halticini 

 by the presence of a spur to each of the tibiae. The tibise themselves 

 are rather stouter, t, e., more dilated at tip than usual in the Cre- 

 pidoderides, and the oblique truncation of the posterior pair is mar- 

 gined by a row of short, stift' cilise. 



H. bsisalis Crotch. --Obloug, parallel, moderately couvex, piceous, surface 

 with brown bronze lustre. Antennfe half as long as the body, jjiceous, five basal 

 joints rufotestaceous. Head smooth, frontal carina broad and flat, having a 

 rhomboid area, tubercles very flat, separated from the front by a finely impressed 

 line, a group of very coarse punctures near each eye. Thorax transversely 

 quadrate, not narrowed in front, sides feebly arcuate, disc convex, the punctures 

 coarse, deep and close, except near the apex, ante-basal impression moderately 

 deep, the longitudinal impressions deeper and extend in front of as well as be- 

 hind the transverse impression. Elytra distinctly wider at base than the thorax, 



