Baring 453 



evident humeral swellings but slightly wider than the prothorax, 

 about twice as long, the sides subparallel and feebly arcuate, evenly 

 rounding in about apical third; striae moderate; intervals from two 

 to nearly three times as wide as the striae, subalutaceous, with fine 

 and well spaced punctures, the squamules forming a single line on 

 each, though double on the third and fifth; male abdomen broadly, 

 feebly impressed medio-basally and finely, sparsely squamulose. 

 Length (cT 9) 34-3-6 mm.; width 1.3-145 m^- Mexico (Sierra 



Madre Mts., Chihuahua),— Townsend *chihuahuae n. sp. 



IQ — Elytra longer, arcuately narrowing behind from near the humeral 



protuberances ; ^^ 



Elytra shorter and more parallel, narrowing arcuately only from behmd 

 the middle, the intervals in every case each with a very even single 



line of squamules ^3 



20 — Prothorax distinctly shorter than wide. Form oblong-suboval, 

 rather convex, only feebly shining, deep black, the legs black to 

 obscurely rufescent; squamules above nearly white, aggregated 

 loosely but in well defined lateral vitta and finer median line on the 

 pronotum, in single line on the strial intervals, double on the fifth 

 basally; very small scutellum and the thoracic lobe densely albido- 

 squamose; white scales of the under surface dense on the hind body, 

 sparse on the metasternum; beak (cf ) thick, cylindric, dull and 

 sculptured, feebly and evenly arcuate and as long as the prothorax, 

 with the antennaj at four-sevenths, or (9) evidently thinner, with 

 the antennae just beyond the middle; prothorax a fourth to fifth 

 wider than long, the sides subparallel, feebly arcuate, more rapidly 

 rounding apically to the feebly constricted apex, which is more than 

 half as wide as the base; smooth median line uneven but entire; 

 elytra three-fifths longer than wide, very little wider than the pro- 

 thorax and twice as long, the sides evidently arcuate, only very 

 feebly converging from the distinct humeral swellings and with 

 rapidly obtuse apex; intervals with rather small and well separated 

 punctures, about three times as wide as the deep abrupt grooves; 

 male abdomen feebly impressed and with smaller and sparser 

 squamules medio-basally. Length {& 9) 2.6-3.3 mm.; width 

 0.8-1. 18 mm. Massachusetts (Xatick, — Frost, and from an un- 

 recorded locality). Four specimens puritanus n. sp. 



Prothorax about as long as wide; trilineate with loosely aggregated fine 



white squamules .' ' ' '^^ 



21 — Body very small in size and narrow, the prothorax not evidently 

 constricted at apex. Elongate, suboval, scarcely shining, black, the 

 legs dark rufous; beak in the male rather large, thick, feebly, evenly 

 arcuate and strongly sculptured, longer than the head and pro- 

 thorax, the antennae at four-sevenths; prothorax with the feebly 

 arcuate sides subparallel, rounding gently near the apex, which is 

 distinctly more than half as wide as the base; elytra very little 

 wider than the prothorax and four-fifths longer, the sides almost 

 straight and parallel in nearly basal half, broadly and feebly arcuate 

 as a whole, the apex not very obtuse, the humeral swellings very 

 moderate; intervals about twice as wide as the striae, each with a 



