222 MEMOIRS ON THE COLEOPTERA 



servusRr., does not occur in America, although we have some that 

 are apparently closely allied thereto, as for example the two follow- 

 ing: 



Hister densicauda n. sp.- Body small in size, broadly oblong-oval, 

 convex, shining, the integuments above perfectly smooth and devoid of 

 any trace of minute punctulation; head not definitely impressed, the sides 

 of the unbroken stria very oblique and straight, the anterior part recti- 

 linearly transverse; prothorax only moderately transverse, the moder- 

 ately converging sides nearly straight, gradually arcuate and then strongly 

 rounding anteriorly; outer stria subentire, not very distant from the edge, 

 the inner coarser, subsinuous, entire and obsoletely subpunctate; base 

 with a single series of distinct punctures but with no impression before the 

 scutellum; elytra transverse, only a third longer than the prothorax, the 

 four entire dorsals very deeply impressed, without trace of punctures or 

 crenulation, the fifth distinct in apical half, the sutural obsolete in an- 

 terior third; flanks without trace of striae, the oblique humeral obsolete 

 or barely traceable; inflexed sides with two shallow, sulciform, abbrevi- 

 ated and confusedly punctulate striae, besides the very fine external stria; 

 propygidium flat, with very coarse punctures, separated by a fourth to 

 half of their diameters, the pygidium with smaller though coarse, deep 

 punctures, which are almost in mutual contact, only the extreme tip 

 smooth; prosternal lobe finely beaded, the mesosternal sinus very feeble; 

 three teeth of the anterior tibiae large but obtusely worn in the type. 

 Length 3.8 mm.; width 3.0 mm. 



A single specimen, without locality label but probably from our 

 Atlantic region, was received some years ago. It represents a 

 species undoubtedly allied to servus but much smaller. Servus is 

 described by Marseul as 5 mm. in length and 3.75 mm. in width, 

 with the front impressed, the stria semicircular, the outer lateral 

 pronotal stria abbreviated, the propygidium bifoveolate, the four 

 entire elytral striae punctate -or probably more properly crenulate 

 and the entire upper surface is minutely punctulate. 



Hister cribricauda n. sp. Form broadly oval, convex, polished and 

 deep black as usual, the minute punctulation evident on the head and 

 pronotum, closer on the head, the ambient stria forming a very transverse 

 straight-sided pentagon; prothorax in outline nearly as in the preceding, 

 the lateral striae similar, the fine outer stria entire to more or less evi- 

 dently abbreviated; base with a minute indentation just before the scutel- 

 lum as in servus, the punctures of the basal series rather strong; elytra 

 transverse though longer than in the preceding, the sides strongly arcuate, 

 the four entire striae less impressed and with their inner edges feebly 

 crenulate, the other striae as in the preceding, except those of the inflexed 

 sides, which are quite different, these being a single very coarse deep 

 sulcus, continued to the base by a less coarse and shallower sulcus and, 

 along the edge, the usual very fine stria; propygidium feebly, very evenly 



