THE LAMELTJCORN BEETLES. 



./. Elytra not pubescent; clypeus without a transverse ridge. 

 /,-. Alesosternum distinctly carinate between the cox;e: front 

 tibia- punctate on front face; first tarsal joint longer than 

 second. 



/. Uniform reddish- or pale chestnut-brown : first joint of 

 hind tarsus not as long as the next three. 



1757. RUBEOLUS. 



//. Dull brownish-yellow, head and thorax darker, elytra 



often clouded ; first joint of hind tarsus longer than the 



next three. 1758. STERCOROSUS. 



/./.. Mesosternum not carinate; basal marginal line rarely ab- 



sent: front tibia- smooth in front. 

 in. Color reddish-brown or dull brownish-yellow, never in any 



part black. 



11. Thorax not fringed with long hairs; color dull yellow, 

 thorax and suture darker; larger, 4.5-5 min. 



CONSENTANEUS. 



mi. Thorax fringed with conspicuous hairs; color pale, dull 



yellow, elylra with an oblique fuscous bar on basal 



half; smaller, not over 3.5 mm. 175J. WOLCOTTI. 



in in. Color in great part piceous ; head and thorax always black 



or piceous. 



o. Clypeus angulate each side of middle notch. 



p. Elytra entirely piceous or often with the alternate in- 



tervals marked with small reddish spots; body be- 



neath and legs pale yellow. 1700. BICOLOR. 



/*/. Elytra dull yellow, with black spots; sides of thorax 



. paler. 1761. SERVAL. 



oo. Clypeus very obtusely rounded each side of middle 



notch. 



q. Elytra dull yellow, with black spots; thorax with 



front angles paler. 1762. INQUINATUS. 



qq. Elytra black, apex dull red; thorax entirely black; 



elytra 1 intervals very flat. 1763. TER.MINALIS. 



)';. Elytra more or less pubescent, fuscous, the sides paler. 



>: Sides of thorax not fringed; teeth of front tibia 1 normal; 

 punctures of elytra! stria- very distinct. 



1764. FEMORALIS. 



>-i: Sides of thorax with a fringe of rather long hairs; front 



tibia? with upper tooth small or wanting; punctures of 



elytra] stri.-o indistinct. 1765. WAI.SHII. 



//. Thorax narrower at base- than apex, distinctly sinuate at sides 



near hind angles; color black or piceous. 

 x. Elytra oblong with a small tooth on each humerus; length 7- 



'-> mill. 1766. OBLONGUS. 



.s-.v. Elytra oval wilhoiil a toolh on humerus; length 3.5 mm. 



HUMERALIS. 



