26 CLAVICORNIA. [Altisof())lta. 



A. Posterior margin of thorax sinuate on each 

 side ; posterior tibiae of male very much curved. 



a*. Club of antennae dark ; posterior femora 



of male with a large lobe-like tooth, ending 



in a point A. calcabata, Er. 



b*. Club of antennse ferruginous : posterior 



femora of male with a large lobe-like 



tooth, rounded at apex A. curvipes, Schmidt 



{macropus, Ryf). 



B. Posterior margin of thorax straight ; posterior 



tibiae of male almost straight. 



a. Posterior angles of thorax obtuse; colour 



ferruginous A rubighnosa, Schmidt. 



b. Posterior angles of thorax almost right 

 angles; colour variable, sometimes entirely 



black A. NiGRiTA, Schmidt, 



2. Anterior tibiae dilated towards apex. 



A. Form long oval ; elytra broadest at or behind 



middle. 



a. Thorax with two or three larger punctures 

 on disc before scutellum, besides the usual 



basal row; size larger (length 4-4^ mm.). . A. silesiaca, Kraatz. 



b. Thorax without larger punctures before 

 scutellum besides the usual basal row ; size 



smaller (length 3-3^ mm.), 

 a*. Thorax hardly as broad as elytra ; club 



of antennae large and broad A. curta, Fairm. 



h*. Thorax fully as broad as elytra : club of 



antennae smaller and narrower .... A. lunicollis, Si/e. 



B. Form short oval; elytra broadest before 



middle, and thence narrowed to apex. 



a. Posterior margin of thorax sinuate on each 

 side near posterior angles, size larger and 



more depressed A. triepkei, Schmidt. 



b. Posterior margin of thorax straight, size 



smaller, and more convex A. fallens, Sturm, 



II. Interstices of elytra with more or less distinct 

 cross striation. 

 i. Posterior angles of thorax obtuse ; size larger ; 

 last joint of antennae distinctly narrower than the 



preceding A. rugosa, Steph. 



ii. Posterior angles of thorax sharp right angles ; size 

 much smaller ; last joint of antennae not narrower 

 than the preceding A. parvula, Sahib. 



A. cinnamomea, Paiiz. Oblong, rather convex, ferruginous or 

 reddish-testaceous, shining ; head rather large, finely punctured, antennse 

 moderately long, with the 2nd and 3rd joints elongate, cylindrical, the 

 3rd being half as long again as the 2nd, club black, last joint as broad as 

 the penultimate ; thorax about as broad as elytra, thickly and finely 

 punctured, moderately rounded at the sides, with posterior angles obtuse, 

 but almost right angles : elytra fully twice as long as thorax, sides sub- 

 parallel until a little before apex, with regular punctured striae, inter- 

 stices very finely punctured, the alternate ones with rows of larger 

 punctures. L. 4y-6^ mm. 



