neic Species o/' IlistcridK. 391 



sternum broad and widening out anteriorly, lateral stria very 

 fine, nearly smooth, widely incised at the base, edge of the 

 anterior lobe somewhat reflexed ; mesostcrnum widely pro- 

 duced in front, Avithout marginal stria, obscurely punctulate ; 

 metasternum with an extremely fine oblique stria on each 

 side, distinctly and rather closely punctulate, except at the 

 middle of basal region ; first segment of abdomen bistriate at 

 sides and more finely [)unetulate ; tibia3 dilated and witlioiit 

 teeth, the intermediate and posterior being obtusely angulate 

 in the middle of the outer edge. 



This species resembles P. castaneus- in size, colour, and 

 shape. 



J lab. Mexico. 



Paratropna castaneus, sp. n. 



Orbicularis, supra convc:cus, brunncus, nitidus ; frontc ante oculos 

 cariiiata ; thoraco elytrisque spursissimc punctatis ; prostcrno 

 utriiupie bistriuto ; mesostorno in medio punctato. 



L. 1^- mill. 



Nearly circular in outline, brown, sliining, convex above ; 

 head polished, with six or eight punctures bearing sette on the 

 forehead, carinate before the eyes, impressed anteriorly, 

 clypeus a little constricted at base; thorax, marginal stria 

 fine and clearly visible at the sides, interstice narrow, an 

 oblique impression begins behind the eye and terminates 

 before the posterior angle, and has an extremely fine bent 

 stria in its centre ; the disk has widely scattered punctures, 

 each bearing a seta ; elytra, marginal stria fine, very clear, 

 and complete, the dorsal striai are represented by punctures 

 bearing seta3 similar to the thorax, except that those in the 

 position usual to the first three stride are in rows; propy- 

 gidium and pygidium nearly smooth, a few flavous setaj 

 are visible on the surfaces ; prosternura impunctate, trian- 

 gularly incised at the base, the keel wide, with two striaj on 

 each side, both widening out anteriorly from the base ; the 

 mesosternum triangularly produced in front, the apex being 

 feebly reflexed ; anteriorly the mesosternum is immarginate, 

 but there are three very fine stria on each side, which are 

 apparently "lateral strife;" they all start from a common point 

 opposite the exterior stria of the prosternal keel, and they 

 are continued down the side of the metasternum ; meso- 

 sternum with a few scattered and feebly impressed punctures 

 in the middle ; the first segment of the abdomen has a row of 

 punctures on the anterior edge and is bistriate laterally. 



llab. Mexico. 



