ini-^ i.A\ts:.iA:n.OiC< HEETLES. 



929 



j. Elytra not pubescent; clj-peus without a transverse ridge. 

 k. Mescisteinnm distinctly carinate between the coxjp; front 

 tibiiie punctate on f runt face ; fli-st tarsal joint longer than 

 second. 

 I. Uniform reddish- or pale chestnut-brown; first joint of 

 hind tarsus not as long as the next three. 



1757. BUBEOLCS. 



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

 often clouded ; first joint of hind tarsus longer than the 

 next three. 17.!iS. STEBCOKOsrs. 



JcTc. Mesiisternuui not carinate; basal marginal line rarely ab- 

 sent ; front tibia smui .th In front 

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

 part black. 

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

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



conse^;taneus. 

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

 yellow, elytra with an oblique fusuuus bar on basal 

 half: smaller, not over o.D mm. 17."iri. wolcotti. 



mm. ri>lov in ;^reat part piceous ; head and thorax always black 

 or pii;ei5us. 

 o. I 'lyiieus angulate each side of middle notch. 

 /J. Elytra entirely picetius or often with the alternate In- 

 tervals marked with small reddish splits : body be- 

 neath and leiTS pale yellow. 1760. bicolob. 

 pp. Elytra duU yellow, with black siiots ; sides of thorax 

 paler. 1761. sebval. 

 00. Clyiieus very obtusely rounded each side of middle 

 notch. 

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

 front angles paler. 1762. ixgrixATts. 

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

 eljtral intervals very flat. 17Go. tebmixalis. 

 11. Elytra more or less pubescent, fuscous, the sides paler. 



'. .Sides of thorax not fringed; teeth of front tibise normal; 

 puuetures of elytral strife very distinct. 



1764. FEMOEALIS. 



' ; . .'<ides of thorax with a fringe of rather long hairs ; front 



tibije with upper tooth small or wanting; punctures of 



el.iiTral stviss indistinct. 1765. walshd. 



ii. Thorax narrower at b;i<e than ar>ex. dlstimtly sinuate at sides 



near hind angles : color black or piceinis. 



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



9 mm. 17C6. obloxgus. 



.«. Elytra oval without a tooth on humerus: length .3.5 mm. 



HUMEBAUS. 



