188 [April 



is more elongated. The smooth elevated spots are more oval than in the 

 European species. The thorax has two, instead of three transverse rows, 

 of which the middle pair in the anterior row is to a slight extent conflu- 

 ent with that of the second row. The spots on the elytra are arranged in 

 four longitudinal rows, in the s c a h e r the rows amount to six. A sutu- 

 ral row of spots also exists on each elytron ; these spots are of irregular 

 shape and disposition. The tubercles of the propygidium are the same in 

 both species, in number ; the pygidium in our species has but two spots. 

 The anterior tibiae are coarsely four-toothed, the posterior ones are bi- 

 seriately spinulose, the spines in one row alternate with those of the other 

 row, they are not in opposite pairs. Locality, Nebraska. For this beau- 

 tiful little insect the Society is indebted to Mr. John Pearsall. 



LANGTJRIA. 



L. uhlerii, rufa, nitida, thorace latitudine longiore, convexo, parce punctulato, 

 lateribus late rotundatis, elytris cyaneo-nigris, punctato striatis, abdominis seg- 

 mentis duabus ultimiir: capite antennisqiie nigris, pedibus rufis, femoribus apice 

 nigris. Long. .30. 



To Mr. Philip R. Uhler, of Baltimore, this little species is dedicated. 



It resembles closely the m o z a r d i , diifering, however, in its more 

 elongate form ; the sides of the elytra are more convergent posteriorly. 

 The thorax is more elongate, less convex above, and less strongly rounded 

 sides. The head and last two abdominal segments are black. The feet 

 are rufous, excepting the apices of the femora, which are black. When 

 more specimens have accumulated, this may prove to be a variety of 

 trifasciata. I am indebted to Mr. Uhter, for this species. It was 

 found in the neighborhood of Baltimore. 



TRIPLAX. 



T. frontalis, elongate ovalis, nitida convexa, capite parce punctulato, fronte 

 nigris, thorace flavo fere duplo breviore, antrorsum angustato subtiliter punctatis 

 elytris nigris subtiliter striato-punctatis, interstitiis vix parce punctulatis, anteu- 

 nis nigris. Long. .25. 



Resembles closely the macra Lee, from Maine, but readily distin- 

 guishable by the more deeply punctured elytral striae. The head is 

 black, excepting that behind the posterior margin of the eyes. From 

 Texas. My collection. 



I would here state that the Leptura described and figured by me under 

 the name of n i t i d i c o 1 1 i s, is identical with that described by Newman 

 as vibex. The correction is made, that trouble in future may be 

 avoided. 



