3i6 Memoirs on the Coleoptera 



prothorax large, a fifth wider than long, the sides feebly converging and 

 very slightly arcuate nearly to apical fourth, there broadly rounding and 

 rapidly converging to the apex, the basal lobe as in the preceding; 

 punctures rather coarse, separated by about their diameters, gradually 

 rather larger and dense laterally; median smooth line very short and 

 imperfect; elytra parallel, a fourth longer than wide, very slightly 

 wider than the prothorax and one-half longer, the sides behind the 

 rather prominent humeral callus straight; apex rapidly, very obtusely 

 rounded; grooves deep; intervals more or less nearly twice as wide as 

 the grooves, with single somewhat uneven series of coarse and close-set 

 punctures, a little smaller and more confused on the third; setae short 

 but distinct; abdomen not coarsely, shallowly and very loosely punctate, 

 more strongly and closely toward tip. Length (9) 4-0 mm.; width, 

 1.9 mm. New Mexico (Las Cruces). 



The very stout form, relatively short and parallel elytra, rapidly 

 and obtusely rounded at apex, short beak and rather bright red- 

 brown color, will readily distinguish this species. 



Baris peninsulcB Horn, of which I have a specimen taken at San 

 Jose del Cabo, Lower California, resembles such species as nephiana 

 and apposita very closely, but has the general sculpture coarser 

 and denser and much more confused on the elytra; it is narrower 

 in outline and more cylindrical than the southern California profuga 

 and has the thoracic punctures notably denser. 



The following nine species are allied more or less evidently to 

 inter stitialis Say {guadrata and carinulata Lee). They are deep 

 black, more or less strongly shining and, as a rule, are strongly 

 sculptured; soluta is a remarkably developed form of this group, 

 with short and broad, very coarsely and sparsely punctured pro- 

 thorax; zuniana also belongs here, as do tumescens Lee, and monti- 

 cola Fall, the last, however, having very much finer elytral punctures 

 than any other. 



Baris agnita n. sp.— Elongate-suboval, convex, shining, deep black 

 throughout the body and legs; beak but little smaller or more slender 

 in the male, about three-fifths as long as the prothorax in both sexes, 

 arcuate, finely and not densely punctate; antennal club notably small 

 and slender; prothorax rather short, a third wider than long, the sides 

 slightly converging and feebly arcuate, 'gradually and broadly rounded 

 anteriorly, without trace of constriction at apex, the basal lobe rather 

 small, obtusely cuspidiform, the punctures somewhat strong, separated 

 by once to twice their widths, gradually close but not confluent laterally; 

 median smooth line not well defined, narrow; scutellum small, rounded; 

 elytra nearly one-half longer than wide, a little wider than the prothorax 

 and almost twice as long, the sides slightly converging and broadly 



