Atomarw.] clavicoknia. 331 



A. Transverse basal impression of thorax without 

 a fold at ojK'h side. 



a. AutenuiB very short and stout; elytra 

 dark, lighter towards apex, the colour not 

 bein<^ well defined, and sometimes obscurely 



r A . . A. ruMATA, ir. 

 marked ' 



b. Antenna) longer and less stout. 



a*. Form shorter ; elytra shorter in propor- 

 tion to thorax ; antenna; moderately long 



and stout, 

 af. Elytra with a well-defined light spot 

 before apex; punctuation of thorax 



close a.nd strong A. Baeani. Bns. 



bf. Elytra usually lighter at apex, some- 

 times almost entirely yellowish-brown, 



but without well-defined light spot, 

 at. Punctuation of thorax coarser and 



moredifl-use A. momy-E^Tms, Steph. 



bt ^Punctuation of thorax close and ^ ^^,^^^^^^^^^^ ^^^,^, 



b*. Form narrower; elytra longer in pro- 

 portion to thorax ; antennae elongate and 



slender, 

 af. Thorax as long as broad, with punc- 

 tuation very close and deep ; form quite , . „ r,,„s 



linear and parallel A. LINEARIS. Steph. 



bf. Thorax slightly transverse, with punc- 



tuation less close and finer; form less „ ,„ .^„, , i^.. * 



,. . A. ELONGATUIA, Ji/'.* 



hnear a 



B. Transverse basal impression of thorax deep, ^„^^,^. -p^ 



with a small raised fold at each side .... A. UMBEINA, Er. 

 ii. Thorax considerably narrower at base than base of 



A.tSe'iarge; colour dark ; elytra convex . . . A. xongicoenis, Thorns. 

 B. Size small; colour testaceous or reddish -yellow, . ,. ^^ 



sometimes brownish; elytra rather flat. . . • A. badia, iir. 



A. dlluta, Er. Entirely testaceous, rather depressed with fine and 

 somewhat sparing pubescence ; antennae rather long and stout ; thorax 

 almost as long a°s broad, feebly rounded at^ides pos er.or ang es nght 

 angles, rather diffusely and finely punctured ; ^^y^ra elongate spaimgly 

 and v^ry finely punctured; in general appearance ^^\'V^'''' ^^^'l 

 exactly resembles C. ferruginea, but may at once be ^i^^^ JyJ^ ^ 

 3-jointed club of antennae, the shape of the tibise, and the finer and more 

 sparing punctuation and shorter pubescence. L. 1^ mm. 



Very rare; Scotland, Tweed and Forth districts, Edinburgh, Falkirk, &c. 



A. fimetaril, Herbst. Oblong, subcylindrical, pitchy-red or fuscous, 



* The thorax of A. elongahda appears to vary somewhat in breadth in proportion 

 to the elvtra some specimens might be classed with A. lor,gicorms and^. ladia in 

 this resp^t ;' anT it must, tbcrelre, be regarded as forming a transition towards 

 them. 



