200 CLAvicoRNiA, [Ilisien 



bf. Sutnral stria of elytra reacbing' 

 only from about middle to apex ; 

 tcetb of frout tibijo ratlier 

 strong, 

 aj. Size larger ; tborax less strong- 

 ly narrowed in front ; frontal 

 stria more distinctly angled in 



middle . , . , 11. neglectcs. Genu. 



bj. Size smaller ; thorax more 

 strongly narrowed in front ; 

 frontal stria less distinctly 



angled in middle H. cAKBONAElirs, III. 



S. Elytra without lateral stria ; thorax with 

 two lateral strisc on each side, the outer 

 one being sometimes visible only near 

 anterior angles. 



A. Elytra black with red markings. 



a. Prosternal process emarginate at apex ; 

 outer lateral stria of thorax long, 



scarcely abbreviated (H. QtrADBliVOTATUS, S'eriia.) 



b. Prosternal process not en^arginate, more 

 or less pointed or rounded ; outer 



lateral stria of thorax abbreviated . . (H. SINTJATUS, III.) 



B. Elytra entirely black ; outer lateral stria 

 of thorax very short, visible at anterior 



angles H. bissexstriatus, F. 



ii. Mesosternum truncate in front or slightly 

 rounded, prosternum quite straight ; thorax 

 with one lateral stria on each side (sub-gen. 

 Atholus, Thorns.) 



1. Elytra black; anterior tibife with three 



teeth. 



A. Elytra without marginal subhumeral 



stria H. 12-STRiATrs, Sch. 



B. Elytra with a more or less distinct abbre- 

 viated subhumeral stria Var. 14-STEiATrs, Gyll. 



2. Elytra with a large red spot on each towards 



apex ; anterior tibige with four teeth ... II, bimaculatus, L. 



H. Quadrimaculatus, L. Somewhat depressed, oblong-or subquad- 

 rate, with sides somewhat widened and rounded in middle ; black with 

 a large crescent-shaped red spot on each, which is very variable in shape, 

 being often interrupted and forming four patches, and sometimes being 

 absent altogether (F. cethiops, Heer) ; thorax with one entire lateral 

 stria, and a much abbreviated outer stria which is sometimes obsolete ; 

 elytra with no sutural stria, but with three entire dorsal striro and an 

 abbreviated subhumeral stria ; pygidium much more thickly punctured 

 than propygidium; anterior tibi* with three strong teeth. L. 7-11 

 mm. 



stria J by some authors the stiia; arc counted from the sutural stria, luit as the striae 

 near suture are usually abbreviated and often obiok-te, this metlioil of counting gives 

 ri;e to much confusion. 



