432 CLAVICORNIA — NITIDULIDAE. 



nate in front, considerably narrowed toward apex, side 

 border broad ; elytra scarcely twice as long as middle of 

 thorax, apex truncate. L. 2 1. Eare. E. silacea, Herbst. 



a b. Club of antennae brown. 



Oval, rather fiat. Reddish-yellow; disc of thorax and 

 elyti'a near side darker ; club of antennae brown. Thorax 

 nearly twice as broad as long, side border moderately broad, 

 apex slightly emarginate in a curve; elytra more than 

 double as long as middle of thorax, apex bluntly rounded. 

 L. 1| — If 1. Eare. J^. immunda, Er. 



h b. Intermediate tiluae of male simple. 

 A a. Last joint of antennae yellow. 



A 1, Apical joint of antennae not broader 

 than penultimate. 



Oval, flat. Yellow ; breast often darker, elytra frequently 

 clouded with brown. Thorax about twice as broad as loug, 

 deeply and somewhat angularly emarginate in front, con- 

 siderably narrowed toward apex, side border broad, posterior 

 angles almost acute ; elytra fully double as long as middle 

 of thorax, apex truncate. L. 1| 1. Common. 



E. deleta, Er. 

 -B 1. Apical joint of antennae broader 

 than penultimate. 



Ovate, slightly convex. Ochre yellow ; elytra sometimes 

 with an indistinct blackish spot in middle. Thorax about 

 twice as broad as long, deeply and somewliat angularly 

 emarginate in front, somewhat narrowed toward apex, side 

 border moderately broad, posterior angles right angles ; 

 apex of elytra very bluntly rounded. L. 1|- 1. Common. 



E. acstiva, Lin. 



7? b. Last joint of antennae blackish. 

 Ovate, slightly convex. Eed-yellow or rust-red. Thorax 

 scarcely so wide as elytra, about twice as broad as long, 

 narrowed from base, side border rather narrow, posterior 

 angles obtuse; apex of elytra scarcely rounded. L. 1| 1. 

 Eare. E. me Una, Er. 



2. Sides of thorax with a very small sinuation im- 

 mediately before posterior angles. 

 A A. Elytra with a distinct round blackish spot 

 in middle of each. 



