336 HETEEOMEEA — PYTHIDAE. 



placed nearer eyes than in B. ruficollis; elytra with rows 

 of punctures, the marginal one placed in a furrow in 

 front. L. 1^ — 2 1. Kather common. 



B. viridipennis, Steph. 



J5. Thorax bronze-black or brown. 



Bronze-black or brown ; rostrum, base of antennae and 

 generally under-side yellow-red ; legs yellow. Elytra with 

 rows of punctures, the marginal one not or scarcely placed 

 in a furrow. L. 1^ — 1| 1. Common. 



B. planirostris, Fab. 



MELANDR YIDAE. 



A, Antennae ending in a large four-jointed club. 



Head strongly inclined, scarcely visible from above ; 

 maxillary palpi not sawlike, their last joint very slightly 

 hatchet-shaped ; apex of mandibles bifid ; anterior coxae 

 cylindrical, transverse, separated Ijy a prosternal process 

 reaching to their level ; thorax strongly transverse, sides 

 rounded ; elytra short, rather convex, parallel-sided. 



Tetratoma, Herbst. 



S, Antennae threadlike or gradually thickened. 



a. Anterior coxae not contiguous. 



I, Posterior coxae not oblique ; apical spines of tibiae 

 very long. 



Head vertical, scarcely or not visible from above ; maxil- 

 lary palpi not sawlike, their last joint hatchet-shaped; 

 apex of mandibles bifid ; posterior coxae broad, flat, 

 parallelogrammic ; penultimate tarsal joint entire. 



Or die si a, Latr. 



II, Posterior coxae oblique ; apical spines of tibiae 

 short. 



Head vertical, scarcely or not visible from above ; maxil- 

 lary palpi not sawlike, their last joint flattened, parallel- 

 sided, obliquely truncate at apex ; apex of mandibles bifid, 

 penultimate tarsal joint entire. Hallomenus, Payk. 



h. Anterior coxae contiguous. 



I. Tarsal claws simple. 



1. Antennae eleven-jointed. 



