84 MEMOIRS ox THE COLEOPTERA. 



differ from Metaxya in having the metasternum more or less exten- 

 sively produced between the coxae and acutely angulate. Disopora 

 and probably Dinarosa, Taphrodota and Terasota should be con- 

 sidered subgeneric groups of Aloconota. 



Aloconota admista n. sp. Moderately stout and convex, subparallel, 

 somewhat alutaceous, the reticulation strong, the punctures very fine and 

 not dense though asperulate, the abdomen transversely strigilate in wavy 

 broken microscopic lines; vestiture rather short, evident; color dark rufo- 

 piceous, the head and abdomen black, the legs pale piceo-flavate ; head well 

 developed, with a small central impression, the tempora much longer than 

 the rather small eyes and slightly more prominent, parallel and rounded, 

 the carinae completely obsolete; antennae fuscous, paler basally, moderate 

 in length, notably stout, moderately incrassate, the outer joints evidently 

 transverse, the last almost as long as the two preceding, the elongate second 

 and third equal; prothorax slightly transverse, widest well before the middle, 

 where the sides are rounded, thence converging and straight to the obtuse 

 but unrounded angles, anteriorly distinctly wider than the head and very 

 nearly as wide as the elytral base, the median line rather broadly and dis- 

 tinctly impressed; elytra moderately transverse, with slightly diverging 

 sides, the punctures close and strongly asperulate, the suture a fourth longer 

 than the prothorax; abdomen evidently narrower than the elytra, parallel, 

 the tergites one to five equal; mesosternal process not extending quite to 

 the middle of the coxae, its apex very acute, the metasternal projection rather 

 long, acutely angulate, separated from the former by a deeply sunken interval 

 of much more than its own length. Length 2.4 mm.; width 0.6 mm. Iowa 

 (Cedar Rapids), Brendel. 



The asperulate sculpture, general form of the prothorax and 

 sombre coloration will render the identification of this species at 

 all times certain. 



Alcconota incertula n. sp. Moderately stout and convex, rather shining, 

 the punctures very fine and inconspicuous, stronger, dense and asperulate 

 on the elytra; color piceous-black throughout, the elytra feebly paler only 

 at the apex, especially externally, the legs very pale; head transversely 

 orbicular, unimpressed, the tempora a little longer than the eyes, broadly 

 rounding to the base, the carinae fine, strong and perfectly entire; antennae 

 red-brown, paler basally, moderately short, slender basally, gradually rather 

 strongly incrassate distally, the outer joints transverse, the last stout, grad- 

 ually pointed, not quite as long as the two preceding, the second and third 

 elongate, equal; prothorax slightly transverse, distinctly wider than the 

 head and much narrower than the elytra, the parallel sides broadly angular 

 well before the middle, very obsoletely impressed along the middle basally; 

 elytra large, slightly wider than long, nearly parallel, much longer than the 

 prothorax, the apices deeply sinuate externally abdomen narrower than 

 the elytra, parallel, narrowing a little apically, the fifth tergite not as long 

 as the fourth; sterna nearly as in the preceding species, the metasternal 

 projection not quite so long or acute; basal joint of the hind tarsi slightly 



