EROTYLHXE 149 



motely punctulate, the basal strides very short but deep, oblique, the 

 edge between them not black, the apical margin blackish; elytra across the 

 rather broadly rounded humeri distinctly wider than the prothorax, not 

 quite three times as long as wide, the apex obtuse and parabolic, the sides 

 but feebly converging from the humeri; punctures rather strong, perforate, 

 somewhat close-set in scarcely at all impressed series and gradually 

 becoming fine apically, the intervals flat and with confused fine feeble 

 punctures broadly along the middle of each; sutural series oblique at base, 

 slightly impressed thence posteriorly but strongly and broadly so only 

 toward apex; abdomen very minutely and remotely punctulate, the last 

 segment abruptly less polished and with distinct scattered punctures 

 throughout. Length 9.0-10.0 mm.; width 2.0-2.35 mm. Utah (Nephi), 

 YVickham. Four examples. 



This species, though resembling convexicollis closely to external 

 view, is really quite distinct, as shown by the structure of the an- 

 tennal club, the sixth joint in convexicollis being large and strongly 

 transverse like the succeeding joints, and the elytral intervals are 

 smooth and impunctate, having only irregular rugiform creases. 

 The antennal club in inter stitialis comes far nearer to being 5-jointed 

 than 6-jointed, showing that no generic distinction can be adduced 

 from the number of joints in the club. 



*Languria irregularis n. sp. Much smaller than the preceding, moder- 

 ately slender and convex, very shining, pale ferruginous throughout the 

 body and legs, excepting the head, which is piceous-black, with the 

 neck rufous, the elytra, which are bronzy-black to bright blue and the 

 deep black last two ventral segments; antennae but little longer than the 

 prothorax, slender, the club abrupt, subparallel and broad, 5-jointed; 

 first six joints forming a slender ferruginous shaft, the basal joint of the 

 club also more or less pallid, the remainder black; head convex, sparsely 

 punctate, orbicular, much narrower than the prothorax, the eyes large 

 though scarcely at all prominent; prothorax but little longer than wide, 

 broadly arcuate at the sides, slightly sinuate before the acute and slightly 

 prominent basal angles; surface convex, polished, finely and sparsely but 

 clearly punctate, the basal strioles extremely small and inconspicuous; 

 scutellum transverse, broadly angulate at tip, rufous; elytra barely three 

 times as long as wide, at the rounded humeri only slightly wider than the 

 prothorax, the sides almost parallel to about apical two-fifths, where they 

 become more converging to the very narrowly parabolic apex; punctures 

 notably coarse, very deep and unevenly spaced in scarcely at all impressed 

 series, the intervals scarcely more than twice as wide as the punctures and 

 without obvious punctulation; all punctures become completely obsolete, 

 and the surface very smooth, at apex; last ventral segment with very 

 moderate sparse punctures, bearing fine hairs. Length 6.8 mm.; width 

 1.5-1.6 mm. Mexico (Puente de Ixtla, Morelos), Wickham. 



A very distinct species that can be compared only with cyani- 

 pennis Cr., and from this it differs in its much smaller size, very 



