Enurcpa.] cLAVicoiJNiA. 227 



ii. Uppor-sido spotted or flecked with black, darker 

 portions often ill defined ; sometimes the whole 

 surface is of a dark rt'd uuicolorous colour, with disc 

 of thorax darker tiiau the margins ; imder-side 

 more or less dark. 



1. Sides of thorax gradually becoming wider for two- 



thirds or more of their length from apex, thuncc 

 contracted to base. 



A. Thorax with a more or loss distinct angular 



sinuation at point of contraction to base. 



a. Last joint of antenna3 as broad as, or very 



slightly narrower than, the two preceding. 



a*. Margins of thorax broader ; club of antenna? 



concolorous; average size larger . . . E. DELETA, ^r. 



b*. Margins of thorax narrower ; club of an- 

 teunsB more or less iufuscate ; average 

 size smaller E. immunda, Er. 



b. Last joint of antennco distinctly narrower 



than the two preceding, 

 a*. Colour darker ; margins of thorax and 



elytra broader ; intermediate tibia; of male 



simple E. PAKVULA, 8lurm. 



b*. Colour lighter; margins of thorax and 



elytra narrower ; intermediate tibite of 



male sinuate _ . . . E. obsoleta, F. 



B. Thoi-ax with sides evenly rounded, without a 



trace of angular sinuation at point of contrac- 

 tion to base E. VARIKOATA, ilerJ,^/'. 



2. Sides of thorax strongly rounded in front and not 



contracted behind E. neglecta, Sturm. 



3. Sides of thorax almost parallel or at most very 



slightly contracted in a straight line towards 

 base. 



A. Size larger ; elub of antennaj concolorous ; thorax 



a little broader at base than at apex .... E. pusilla, IJr. 



B. Sizesmaller; club of antenna; infuscate; thorax 



a little narrower at base than at apex . . . E. angustula, Er. 



E. decemg-uttata, F. Eather a large species, -which is easily 

 known by its colour and thick legs ; oblong-ovate, only slightly convex, 

 not very thickly punctured, thinly pubescent ; head reddish-yellow with 

 forehead darker, antennai yellow, thorax with light margins, disc more 

 or less broadly dark ; elytra dark with the margins and five spots on each 

 testaceous, three on the margin, a long one at base, and one behind the 

 middle ; under-side entirely testaceous ; legs reddish ; the elytral spots 

 are usually distmct, but occasionally are somewhat confluent. L. 3^-4 



mm 



Male with the posterior tibiae excised at apex, and the posterior femora 

 armed with a blunt tooth or projection. 



Found at sap of oaks, &c., but is usually connected with the burrows of Cos.ms 

 Ugniperda; rare; Shirley, Coombe Wood, Addington, Birdbrook, Tonbridge ; Hast- 

 ings ; New Forest ; Swansea ; Dunham Park, near Manchester. 



B. diffusa, Bris. (fuscicoUis, Steph.). Yery like the preceding, but 



Q 2 



