444 Memoirs on the Coleoptera 



antennae slender, about half as long as the body, the third and fourth 

 joints long, subequal; prothorax fully four-fifths wider than long, 

 widest at the middle, the sides feebly converging and straight 

 thence basally, broadly rounding anteriorly, the margins abruptly 

 reflexed; surface with somewhat distinct vermiculate rugulosity; 

 anterior impression obsolete, the basal sulcus and lobe conspicuous, 

 the median stria distinctly impressed and rather deep; elytra fully 

 two-fifths longer than wide, feebly inflated behind and scarcely 

 more than twice as wide as the prothorax; striae very fine, not im- 

 pressed, nearly smooth, the intervals flat; abdomen sparsely hairy 

 toward tip. Length 5.5 mm.; width 2.4 mm. Missouri (St. Louis). 



magica n. sp. 

 Form less elongate, blue above, the anterior parts somewhat more 

 greenish; under surface and femora dark greenish, the epipleura 

 purplish-black; head large, with well developed and prominent 

 eyes, though rather evidently narrower than the prothorax, finely 

 rugose, with fine scattered punctures throughout the smoother 

 medial parts; antennae not so slender, compressed, nearly half as 

 long as the body, the third joint somewhat longer than the fourth 

 and much more slender; prothorax larger than usual, fully twice as 

 wide as long, in general outline somewhat as in the preceding, 

 widest at the middle; margins smooth, not quite so abruptly reflexed; 

 surface finely and shallowly though distinctly vermiculato-rugose; 

 angles very sharp, somewhat more than right; basal sulcus and lobe 

 distinct, the stria fine, feebly impressed; anterior transverse im- 

 pression obsolete; elytra barely a third longer than wide, only very 

 feebly inflated posteriad, barely twice as wide as the prothorax; 

 striae fine, somewhat uneven, feebly impressed; intervals not quite 

 flat; scutellar stria short, broadly, obtusely and feebly impressed. 

 Length 5.4 mm.; width 2.22 mm. California (Hoopa Valley, 



Humboldt Co.) incitata n. sp. 



Form rather short, shining blue, the anterior parts rather more obscure 

 or greenish; under surface polished, dark blue; legs black, the 

 femora blue; head as wide as long, with prominent eyes, not quite 

 though nearly as wide as the prothorax, the front smooth, minutely, 

 loosely punctulate laterally; antennae " nearly half as long as the 

 body; prothorax short, very transverse, twice as wide as long, 

 widest somewhat before the middle, the sides broadly rounded and 

 converging anteriad, slightly converging and straighter basally, 

 becoming very feebly sinuate before the basal angles; latero-basal 

 deplaniture with a small tubercle near the angle; surface nearly 

 smooth, the median stria fine and feebly impressed, not entire; 

 elytra a third longer than wide, gradually arcuately dilated pos- 

 teriorly, only just visibly more than twice as wide as the prothorax; 

 striae rather fine and nearly even but distinctly more impressed than 

 in viridis, though less so than in smaragdiila; abdomen with some 

 very short sparse hairs posteriorly. Length 4.0-4.3 mm.; width 

 2.0 mm. New Mexico (Fort Wingate), — Woodgate. 



subaffinis n. sp. 

 13 — Prothorax more widely reflexed at the sides, the surface rather 



