RUTELIN.E 89 



3 Head equal in size in the two sexes 4 



Head much larger in the female than in the male 5 



4 Elytra with the punctures relatively coarse and notably close-set; 

 head very small. Form oval, convex, pale flavate, with thin pearly 

 metallic lustre, the elytra still paler and more whitish, as usual 

 without trace of metallic lustre; under surface blackish, with green 

 lustre and plentifully albido-pubescent, the legs pale but more or 

 less metallic, the tarsi darker; head barely more than a third as wide 

 as the prothorax, loosely scabrous, sparsely punctate basally; 

 clypeus twice as wide as long, of the usual form but with the apex 

 rather strongly reflexed; prothorax as in lanigera but with the fine 

 scabrous lateral punctulation much denser; anterior angles very short 

 and obtuse; elytra oval, convex, nearly similar in the sexes, somewhat 

 more impressed and laterally swollen near basal third in the female, 

 a little longer than wide and distinctly wider than the prothorax, 

 the punctures generally confused and with intermingled small punc- 

 tulation, but with two distinctly defined geminate series on each; 

 pygidium sparsely hairy and feebly sculptured. Length (cf 9 ) 

 16.3-19.0 mm.; width 10.2-11.8 mm. Kansas (Medora), Knaus. 



Five males and five females subcribrata Wick. 



Elytra with the punctures distinct and often strong but always widely 

 separated; body larger in size, with the head not so small. Form 

 oval, convex, similar in coloration and lustre to the preceding, except 

 that the elytra are nearly similar in color to the head and pronotum, 

 though without metallic lustre and having seldom any trace of the 

 very pallid whitish tint characterizing subcribrata; head but little 

 less than half as wide as the prothorax in either sex, finely and sparsely 

 punctulate throughout, the clypeus somewhat less shining, rather 

 more than twice as wide as long, with very broadly rounded angles, 

 the apex somewhat less strongly reflexed than in the preceding; 

 antennal club (cf ) shorter than the preceding six joints, only very 

 little smaller in the female; prothorax more than twice as wide as 

 long, polished and with pellucid metallic lustre, the angles more or 

 less rounded ; punctures minute and sparse, more distinct though very 

 sparse laterally and sometimes having there some feeble, closer 

 punctulation; scutellum wider than long, ogival, with rounded sides, 

 almost smooth; elytra oval, less obtusely rounded behind than in the 

 preceding, distinctly longer than wide and much wider than the 

 prothorax, the lateral impresion and swelling of the sides but little 

 more pronounced in the female; punctures sparsely confused but, in 

 the median parts of each, three or four equally spaced and nearly 

 regular unimpressed series can be distinguished; pygidium pale to 

 blackish, w r ith green lustre, feebly sculptured and sparsely hairy; 

 intermesocoxal prominence very small, polished; under surface 

 blackish, moderately metallic, with dense fine, whitish pile, shorter 

 and sparser on the abdomen; legs moderate, pale, with metallic 

 lustre, the tarsi also pale and not blackish as in the preceding. 

 Length (cf 1 9 ) 17.5-21.0 mm.; width 11.0-12.7 mm. New York 

 and New Jersey. Abundant. [Scarabceus lanigerns Linn.] 



lanigera Linn. 



