328 MANDIBULATA. — COLEOPTERA. 



Genus CCCCII. — Svumroherma * mihi. 



Antennae rather slender, 1 1-jointed, the basal joint a little incrassated ; second 

 subglobose; third and fourth obconic, of equal length, and shorter than the 

 fifth ; sixth and following slightly incrassated pilose, all nearly equal in 

 length, the terminal one being longest and a little acuminated : head small, 

 triangular, deeply inserted into the thorax ; the latter very short, transverse, 

 its anterior margin slightly concealing the head : bodi/ somewhat hemispheric, 

 glabrous, and shining : elytra dilated at the base, more or less gibbous : legs 

 rather slender : posterior femora considerably incrassated: tihice simple, curved 

 at the base, thickened at the apex, which has a simple spine : tarsi robust, 

 with the basal joint broad. 



The very convex, orbicular, or hemispheric form of their polished 

 body in these insects, united to the slender, simple-jointed antennae, 

 unarmed tibiae, and short, dilated tarsi, exclusively of other dif- 

 ferences, sufficiently distinguish them from their allies : — the three 

 last species are, however, rather discrepant. 



A. Thorax without an impressed transverse line behind, 

 a. Elytra punctate ; not striated. 

 Sp. 1 . testacea. Suborbiculata, gibba, rufo-testacea, nitida, subtilissime obsolete 

 punctulata, oculis solis nigris, thorace antice emarginato, postice sinuato. 

 (Long. corp. 1;^ — IJ lin.) 

 Ch. testacea. Fabricius. — Ha. testacea. Steph. Catal. 219. No. 2245. 



Suborbiculate, gibbous, rufo-testaceous, shining, glabrous ; very delicately and 

 obsoletely punctured: eyes large, black: thorax broadly but not very deeply 

 emarginated in front, the base sinuated, the disc very glossy and most obso- 

 letely punctured : elytra rather more distinctly punctured than the thorax : 



. legs pale testaceous, with the femora shining : tibiae curved : antennae also 

 pale testaceous. 



Very abundant on thistles in the neighbourhood of London, and 

 in other parts. " Common on thistles (near Swansea)." — L. W. Dill- 

 wyn, Esq. " Weston." — -Rev. A. H. Matthezos. " Cramond." — 

 Rev. W. Little. " New Walk, York."— H-^. C. Hewitson, Esq. 



Sp. 2. Cardui. Subovata, convexa, rvfo-testacea, nitida, oculis solis nigris, 

 thorace minus convexo, elytrisque evidentius punctatis. (Long. corp. l| — 2j 

 lin.) 



* Sifa/^a, globus ; di^fiX, culis. 



