CERAMBYCID^ 3 27 



on the flanks, which are blackish though paler posteriorly, the line 

 of flexure finely cariniform; two discal lines not visible, the black 

 dots sparse and small, the posterior spot transverse, attaining the 

 carina in the type; legs rather short, the femora moderately clavate. 

 Length (cf ) 3.7 mm. ; width 1.35 mm. Rhode Island (Boston Neck). 



delicata n. sp. 



Median line of the pronotum not definitely carinate 10 



10 Prothorax with pronounced and rather prominent though obtuse 

 apical angles, standing far our laterally from the fine apical beading. 

 Body small in size, rather stout, blackish, with the vestiture dark 

 and not dense, ochreo-cinereous in color; head very strongly and 

 densely micro-granulose and dull, strongly indented, the antennae 

 (9) not very pale, unusually short, three-fourths longer than the 

 body; prothorax unusually short, twice as wide as long, the spicules 

 standing out almost perpendicularly near basal fifth, the sides sub- 

 angularly prominent at the middle; surface evenly convex, the 

 black spots not tumid, the punctures fine, rather sparse; elytra 

 short, three-fifths longer than wide, rather strongly and closely 

 punctate, the line of flexure carinate, the flanks black or nearly so, 

 rufescent at the lower margin, strongly, densely punctate; discal 

 lines feebly evident, not elevated, the black spots small, scattered, 

 the posterior spot transverse, usually attaining the carina; hind 

 femur (9) slender, only feebly but rather abruptly clavate at the 

 distal extremity. Length (9) 4.2 mm.; width 1.5 mm. Penn- 

 sylvania nigrella Hald. 



Prothorax with the apical angle still more obtuse and notably less 

 prominent ; body larger 1 1 



II Form moderately stout, blackish-piceous, the elytral flanks rufescent; 

 head rather small, much narrower than the prothorax in both sexes, 

 indented, feebly grooved between the antennae, the latter distinctly 

 more than twice as long as the body in both sexes, differing but 

 slightly sexually, pale except the articular apices, the scape blackish; 

 prothorax twice as wide as long, nearly similar sexually though 

 broader in the male, the sides unusually prominent medially, thence 

 strongly oblique to the apex, the spicules small, at basal fifth; surface 

 broadly concave along the base, moderately punctate, the medial 

 black spots distinct and slightly tumid, the lateral often wanting; 

 elytra nearly four-fifths longer than wide, of the usual outline, the 

 carina sharply marked, the discal lines unusually distinct but not 

 elevated; punctures moderate, widely separated, the black spots 

 rather large, especially in the female, somewhat numerous, the 

 posterior spot isolated, rounded; femora clavate, nubilously rufous 

 basally, the fine pubescence dense, the posterior (9) distinctly 

 clavate distally; fifth ventral (d 71 ) subtriangular, longer than the 

 fourth, narrowly truncate at tip. Length (c* 9 ) 4-7~5-O mm.; 

 width 1.7-1.83 mm. Indiana and New York (Catskill Mts.). 



cryptica n. sp. 



Form broader, the color paler, testaceous, clothed with cinereous pubes- 

 cence; head distinctly larger, rather strongly canaliculate along the 

 median line; antennae long as in the preceding but with the basal 



