TRIKK VII. ERIKHINIXI. 217 



cc. Punctures of thorax dense, often more or less confluent, the in- 

 tervals forming rugae. 

 (L Thorax smaller, without trace of median line. 



302. SCL'LPTICOLLIS. 



diL Disc of thorax with an almost entire median line which is not 



punctate but finely granulate. 303. SAGITTATUS. 



aa. Elytra never distinctly reddish, usually black, sometimes rufo- 



l>iceous. 

 e. Legs black or fuscous. 



/. Smaller, more slender, not over 2 mm.; sides of thorax feebly 

 rounded. 304. APIOMDES. 



ff. Larger, 3 mm.; sides of thorax strongly rounded. 305. ATRATUS. 

 ee. Legs wholly or in great part reddish. 

 (j. Larger, 3 3.5 mm. 



Ji. Paler spots of elytra formed of larger grayish-white scales; 



punctures of thorax subcontinent, their intervals forming 



concentric rugae. 306. NEBULOSUS. 



hh. Scales of pale spots distinctly yellowish; punctures of thorax 



dense, coarse, not confluent. 307. MACULATUS. 



gg. Smaller, less than 2.5 mm. 



i. Scales of elytra large, white, sparse, not contiguous, only 

 moderately uneven in distribution; length 1.6 mm. 



308. PERPUSILLUS, 



ii. Scales of elytra small, clay-yellow, very uneven 'in distribution; 

 length 2 2.2 mm. 309. INTERRUPTUR. 



300 (10,933). SMICRONYX CONGESTUS Casey, 1892, 401. 



Rather broadly oval, convex. Reddish-brown, the suture of elytra 

 and abdomen piceous; above sparsely and unevenly clothed with yellowish, 

 scale-like hairs, which form several small spots on thorax and wavy 

 transverse lines on elytra. Beak moderately stout, as long as head and 

 thorax, coarsely punctured and scaly, male; longer, more finely and remote- 

 ly punctate, female. Thorax slightly wider than long, not much wider 

 at base than apex, sides strongly rounded; disc coarsely, deeply and 

 closely punctate, each puncture bearing a prostrate, scale-like hair. Elytra 

 oval, one-third wider at base than middle of thorax, sides parallel nearly 

 to middle, then regularly curved to apex; stria? fine, deep, distinctly but 

 remotely punctate; intervals with evident seta?. Length 2.2 2.7 mm. 



Known from Massachusetts, District of Columbia, Illinois 

 and Colorado. Resembles sculpticollis but larger, the thorax 

 larger, more coarsely and sparsely punctate, the second and third 

 funicular joints subequal, each one-half longer than the fourth. 



301 (8555). SMICROXYX TYCHOIDES Lee., 1876, 171. 



Oblong-oval, robust, convex. Black, sides of elytra in great part dull 

 reddish, the suture black, antennae and legs, except base of femora, red- 

 dish-brown, tarsi fuscous; above sparsely and irregularly clothed with pale 

 gray scales which on the elytra form transverse patches or bands. Beak 

 stout, strongly tapering, as long as head and thorax, "male, slightly longer. 



