88 U.S. NATIONAL MUSEUM BULLETIN 2 90 



basally each side; usually with two basal oblique spots; lateral and 

 apical margins vaguely lighter. Punctation dual, smaller punctures 

 minute and dense, larger punctures very small to (infrequently) 

 rather small and coarse. 



Elytra: Orange to reddish, second, fourth, and sLxth intervals us- 

 ually wholly or in part vaguely to distinctly darker to nearly black; 

 with seven distinct and even rows of punctures and a short series be- 

 hind humerus; punctures fine and dense, often a little larger than usual, 

 usually finer to apex; inner and outer rows distinct to apex, nearly or 

 quite meeting. 



Presternum: Anterior margin in male produced ventrally into a 

 distmct, more or less pointed lobe; anterior margin in female produced 

 ventrally into a broad, sometimes pointed lobe. 



Length: 4.0 to 6.0 mm. 



Discussion. — B. E. White (1937, p. 112) recorded this species on 

 Isocoma sp. 



Distribution. — The U.S. National Museum has 29 specimens; 

 they are from California, New Mexico, and Texas. 



Cryptocephalus spurcus vandyhei B. E. White 



Figure 92 

 Cryptocephalus spurcus vandykei B. E. White, 1937, p. 112. 



Pronotum: Backgi'ound color light orange (infrequently yellowish), 

 usually with discal and lateral brown to black markings, not sharply 

 delimited, qiute variable in development. At one extreme, pronotum 

 black and only lateral and apical margins light; at other extreme, with 

 basal and lateral brownish markings. Punctation dual, smaller punc- 

 tures minute and moderate in density, larger punctures small and not 

 coarse to moderate and rather coarse. 



Elytra: Background color light orange, infrequently yellowish, with 

 brown to (usually) black vittae on second, fourth, and sixth intervals, 

 variable in development. At one extreme, with vittae brownish to 

 black and apex of first, and bases of second and third vittae lighter. 

 At other extreme, with dark vittae exjianded, in most areas not 

 sharply delimited, with only following areas light: bases of sutural and 

 first intervals, basal half of fifth interval, most of seventh mterval 

 (clouded below humerus), and base of marginal interval; apical half of 

 third, fifth, and marginal intervals clouded with brownish to blackish. 

 With seven rows of fine, close, generally regular punctures and a short 

 series behind humerus; fifth and sixth rows often a little irregular to 

 somewhat confused; punctures smaller to apex as usual; inner and 

 outer rows distinct at apex to a Uttle irregular, usually meeting. 



Ventral surface: Prosternum and mesosternum and (sometimm) 

 abdomen dull orange and often clouded with blackish; metasternues 



