CERAMBYCHXE 319 



sutural beading strong, obsolete basally; last dorsal (9) projecting 

 very slightly behind the elytra, broad, feebly cuneate, the apex 

 broadly and feebly bilobed. Length (cf 1 9 ) 6.2-8.0 mm.; width 

 1.8-2.7 mm. Mexico (Durango City), Wickham .*subglaber n. sp. 



Form moderately elongate, feebly, subevenly convex, fuscous, densely 

 clothed with uniform ashy pubescence, spotted with black; head 

 deeply indented; antennae very pale and uniform luteo-flavate, 

 slightly more than twice as long as the body; prothorax feebly 

 trapezoidal, two-thirds wider than long, the spine well in front of 

 the base, strong and very aciculate at tip; surface with four large 

 circular spots, forming almost a square, the sides black at the middle; 

 elytra parallel, rounding more rapidly at the sides posteriorly, the 

 apices narrowly subtruncate, not at all prolonged; surface with the 

 fine sparse punctures virtually concealed by the dense cinereous 

 hairs, each with a large subcircular and clearly denned spot of black 

 medially near the base, two in oblique line near basal fourth, one 

 just outside the median line a little behind the middle and another 

 nearer the median line at apical fifth; femora testaceous, black in 

 about apical half, the tibiae and tarsi nearly black; under surface 

 blackish, broadly pale along the median line throughout; basal joint 

 of the hind tarsi nearly one-half longer than the entire remainder. 

 Length 6.5-6.8 mm.; width 2.0-2.2 mm. Indiana and Ohio. 



regularis Lee. 



5 Ely tral apex not black 6 



Elytral apices black, the tips not prolonged; post-median fascia broad and 

 transverse II 



6 Post-median fascia of the elytra narrower and more oblique, its inner 

 limit distant from the suture and strongly oblique 7 



Post-median fascia much broader, transverse, either crossing the suture 

 or with its inner edge parallel and very close thereto; tips not 

 prolonged 10 



7 Elytral tips prolonged posteriorly to a slight degree, rounded or 

 subtruncate with rounded angles, antennae two and a half to three- 

 fourths times as long as the body 8 



Elytral tips not prolonged, obliquely recti-truncate, with distinct but 

 not prominent angle; antennae fully three times as long as the body 

 or more 9 



8 Outline narrow and elongate, pale luteo-flavate in color, the dark 

 maculation rather pale brown; cinereous vestiture fine, moderately 

 dense, becoming brown and very inconspicuous on the apparently 

 denuded darker areas; head feebly indented, the antennae pale 

 luteous; prothorax one-half (cf) to three-fourths (9) wider than 

 long, very feebly trapezoidal, the spine strong, posteriorly oblique 

 as usual, far from the base and between basal third and fourth, 

 infumate, not maculate, minutely, densely punctulate, with stronger 

 punctures along the base; scutellum pale; elytra fully twice as long 

 as wide, slightly shorter in the female, somewhat strongly but not 

 densely punctate, closely and deeply at the sides, the line of flexure 

 not cariniform though distinct; maculation consisting of a subbasal 

 discal spot, a larger post-humeral marginal one, with a feebler discal 



