340 Mr. G. Lewis on 



and aiitennjc are reddish brown, anterior tibia3 with seven 

 denticulations. 



This species is more cylindrical and elongate than any 

 other known. There are now nearly forty species of this 

 genus described, and others exist in collections, and they are 

 very difficult to characteiize intelligendy. 



Hub. Argentina, Province of Buenos Aires (H. Eichter). 



Eutidiiim peruanum, sp. n. 



Oblongo-ovatum, convexiusculum, nigrum, nitidura : fronte plana 

 baud striata ; pronoto impiinctato ; elytris striis 1-2 brevibus, 

 cseteris nullis ; pygidio grosse punctato, apico transvcrsim Ivcvi. 



L. 6| mill, (absque mandibulis). 



Oblong-oval, slightly convex, black and shining ; the 

 forehead is not striate, but in certain lights transverse 

 impressions may be seen which apparently correspond to 

 striee; the thorax is laterally impunctate; the elytra, stria? 

 .1-2 are basal and very short, the outer one longest ; the 

 propygidium is sparsely punctate on its lateral erlges and 

 rather widely biimpressed apically ; the pygidium is coarsely 

 punctured, with the posterior margin smooth ; the prosternal 

 keel is narrowed before the coxae. 



The large size, the more oblong form, and the coarse 

 punctuation of the pygidium distinguish this species from the 

 other four known. 



Ilab. Peru. 



Teretrius [^Teretriosoma'^l montanus, Horn, Tr. Amer. Ent. 

 Soc. viii. p. 143 (1880). 



" Black, shining. Thorax a little wider than long, rather 

 finely punctate, the punctures denser in front. Elytra not 

 more densely punctured than the posterior portion of the 

 thorax. Prosternum sparsely punctate, the tip distinctly 

 grooved. Mesosternum sparsely and finely punctate, without 

 marginal line. Anterior tibias ratlier strongly bidentate at 

 middle, the posterior bispinose near the tip. 



"Length '10 inch (2'5 mm.). 



''Hah. Colorado. 



"Of the same form as americanus [7Wetrioso7na] , but 

 larger and with different dentate tibiaj." 



Teretrius levatus, Horn, Proc. Calif. Ac. iv. p. 365 (1894). 



" Cylindrical, piceous black, shining ; legs brown. Head 

 finely, not closely punctate. Thorax sparsely punctate, fine 



