210 RHYNCIIOniORA — CURCULIONIDAE. 



one placed before apex, large and attached to corresponding 

 one on other elytron. Eostrum with a deep central furrow 

 throughout ; thorax closely punctured, with a distinct cen- 

 tral furrow on anterior half ; elytra with indistinctly punc- 

 tured striae. L. 2| — 4 1. Common. A. triguttatus, Fab. 



MOLYTIJyBS. 



A, Posterior coxae globular. 



a. Elytra convex, oval. 



Eostrum elongate, slender, curved, cylindrical, scrobes 

 commencing in or near middle, curved ; antennae short, 

 rather robust, funiculus with seven joints ; thorax trans- 

 verse, convex, sides rounded. Trachodes, Germ. 



6. Elytra flat, oblong oval. 



Eostrum considerably longer than head, moderately 

 robust, slightly curved, angular, more or less convex and 

 ridged above, scrobes reaching mouth or nearly so, straight ; 

 antennae moderately long, not very rolaist, funiculus with 

 seven joints ; thorax at least as long as broad, not very 

 convex, central line ridged, sides more or less rounded. 



Plinthus, Germ. 



IB, Posterior coxae oval, transverse. 



a. Tibiae feebly hooked at apex ; scrobes confluent 

 behind. 



Mandibles very short, slender, cutting in front ; funiculus 

 of antennae with seven joints ; thorax nearly straight at 

 sides, base rounded, apex straight, without trace of ocular 

 lobes ; scutellum absent ; elytra scarcely broader at base 

 than thorax, shoulders rectangular ; tarsi narrow, spongy 

 beneath. Liosomus, Steph. 



b. Tibiae strongly hooked at apex ; scrobes not con- 

 fluent behind. 



Mandibles pincherlike, convex in front, toothed on inner- 

 side ; funiculus of antennae with seven joints ; thorax 

 ovoid, base and apex truncate, ocular lobes very feeble ; 

 scutellum curvilinear triangular ; elytra a little broader at 

 l)ase than thorax, shoulders rounded; tarsi rather broad, 

 first two joints furrowed and spongy at margins only. 



Molytes, Schoenh, 



