new Species of Histeridse. 171 



black maculation, the colour is red, with a narrow band along 

 the base, a broader apical band and a scutellar spot black, 

 the scutellar maculation is shaped like that in 11. sarcinatus 

 and widens out behind to the third stria ; the pygidia are 

 much less clearly punctured than those of the last species, 

 but the pygidium has a relatively finer and more scattered 

 punctuation at the apex ; the presternum is similar to that of 

 H. sarcinatus, but the mesosternum has a deeper and less 

 wide em argi nation and the stria does not follow the anterior 

 outline, behind the emargination the stria is feebly angulate 

 and on either side leaves a slightly wider margin, in which 

 respect it corresponds with H. tnstratus, Lee. ; the tibiae, 

 anterior 3-dentate, apical tooth minutely bifid. 



Hister militaris, Horn, H. sarcinatus, and H. tunicatus all 

 agree in having a short external thoracic stria. Of these 

 three species, H. militaris is oblong, the others oval. 



Hab. Canon City, Colorado (Wickham). 



Epierus festtvuSf sp. n. 



Ovalis, parum convexus, supra caeruleo-inetallicus, pedibus piceis ; 



fronte impressa, stria integra, inter oculos distincte punctata ; 



elytris striis 1-4 et suturali integra, 5 basi abbreviata ; meso- 



sterno tristriato ; prosterno bistriato, striae antice hamatis, basi 



parum abbreviatis. 

 L. 3 mill. 



Oval, rather convex, rich blue above and metallic, legs 

 pitchy ; the forehead distinctly impressed anteriorly, stria 

 complete, surface with fine points anteriorly, but larger ones 

 behind, and some between the eyes are ocellate, punctures 

 closest near the neck ; the thorax, marginal stria complete, 

 disk with extremely fine and scattered points, punctuation 

 externally more distinct ; the elytra, external humeral 

 striae wanting, internal basal and short, sometimes with 

 an appendage, dorsal 1-4 and the sutural complete, 5 well 

 shortened before the base, apices punctured sparingly ; the 

 propygidium and pygidium finely punctulate ; the presternum 

 with a very few scattered points on the keel, bistriate, striae 

 not touching the base and slightly hamate at the tips; the 

 mesosternum has two anterior marginal striae, then, after a 

 narrow interstice, is an arched crenulate stria, and behind it 

 is one stria (sometimes two) broken in the middle. It is 

 probable, however, that the broken striaj belong to the 

 metasternum. 



This species belongs to the same section of the genus as 

 E. Waterhousei, Mars., and E. smaragdinus, Mars., but the 



