Baring 447 



feebly rounding in apical third, the apex very faintly constricted 

 and much more than half as wide as the base, the basal lobe distinct; 

 punctures relatively rather coarse and separated by half their own 

 diameters; elytra with feebly oblique and broadly, evenly arcuate 

 sides and rather obtusely rounded apex, at the moderate humeral 

 swellings fully a fifth wider than the prothorax, evidently more than 

 twice as long, the striae coarse, the sparsely punctate intervals 

 nowhere more than twice as wide as the grooves; male with the 

 abdomen distinctly, longitudinally impressed and less squamosa 

 medio-basally. Length (d^) 2.7 mm.; width 1.15 mm. Guatemala 



(near the city,— elev. 6500 ft.) *trUineatus n. sp. 



Elytra much less elongate, never more than one-half longer than wide 



and generally less, subparabolic in outline 7 



- — Size much larger; north temperate in habitat. Body rather broadly 

 subrhomboid-oval, feebly shining, black, the legs faintly rufescent; 

 small squamules of the dark and clearly defined pronotal vittse 

 barely observable; whitish squamules of the strial intervals distinct 

 and in two irregular lines, becoming a single line on the three or four 

 sublateral intervals; whitish scales beneath dense; beak in the 

 female feebly arcuate, nearly smooth, rapidly bent and more punc- 

 tate basally and not quite as long as the head and prothorax, the 

 antennae at four-sevenths; prothorax large, a third wider than long, 

 the sides slightly converging and broadly arcuate, becoming grad- 

 ually more rounded apically, the apex much less than half as wide 

 as the base; punctures moderate, separated by nearly their own 

 diameters, the smooth median line distinct and entire; scutellum 

 quadrate, densely squamose; elytra only a little wider than the 

 prothorax and three-fourths longer; striae coarse; intervals between 

 once and twice as wide as the grooves. Length (9)3-8 mm.; width 



1.6 mm. Illinois (southern) _ ingenuus Csy. 



Size smaller, the outline less stout; habitat tropical • -8 



8_Pi-othorax broader, more narrowed apically, the apex half as wide 



as the base in both sexes : ' : ' ' '^ 



Prothorax narrower, less narrowed from base to apex, the latter distinctly 



more than half as wide as the base ^^ 



9— Bodv suboblong-oval, convex, rather shining, black, the legs rufous; 

 squamules above yellowish in the three distinct pale vittae of the 

 pronotum, whiter and in one or sometimes two lines on the strial 

 intervals, the scutellum conspicuously white; scales beneath white 

 and dense; beak feebly arcuate, as long as the head and prothorax 

 (9 ), a little shorter and thicker (c^), sculptured in both sexes, the 

 antennce at three-fifths (d") or only a little less apical (9); pro- 

 thorax but little wider than long, the sides feebly converging and 

 nearly straight, gradually rounding from a slight distance before 

 the middle; apex completely unconstricted; punctures moderately 

 coarse, separated by fully half their diameters, the smooth median 

 line narrow, entire; basal lobe very moderate; elytra at the moder- 

 ately prominent humeri not quite a fifth wider than the prothorax, 

 three-fourths longer, circularly rounded at tip; striae moderate but 

 deep; intervals sparsely punctulate, from two to three times as 



