DASCILLUS. 47 



Femora inserted on outer-side of trochanters. 



a a. Labium distinct. 



Antennae strong, often sawlike or comblike ; head sunk 

 to eyes in thorax. Female sometimes without elytra or 

 wings. Drilidae. 



h J), Labrum obsolete. 



Antennae threadlike ; head more or less prominent ; 

 female with elytra and wings. Telephoridae. 



II, Socket holes for anterior coxae large and widely 

 open behind, but the coxae somewhat enclosed by 

 anterior margin of mesosternum. 



Antennae almost always inserted near margin of fore- 

 head beneath eyes ; clypeus and labrum distinctly separate ; 

 epimera of mesothorax distinct ; abdomen with either six 

 or five ventral segments ; fourth tarsal joint usually small, 

 not dilated. Melyridae. 



h. Laljial palpi very strongly developed. 



Antennae inserted on sides of forehead before eyes, often 

 thickened toward apex ; clypeus and labrum distinct ; epis- 

 terna and epimera of mesothorax distinct ; socket holes for 

 anterior coxae open behind ; aljdomen with six or five 

 ventral segments ; tarsi dilated, with fleshy soles beneath, 

 fourth joint sometimes very small. Cleridae. 



li. Prosternum not produced into a distinct point behind. 



Socket holes for anterior coxae almost effaced ; abdomen 

 with seven or six ventral segments ; apical spines of tibiae 

 indistinct; tarsi slender. Lymexylonidae. 



DASCILLIDAE. 



Mandibles hollowed out on inner-side, upper margin 

 toothed before apex ; outer lobe of maxillae split ; ligula 

 split into four parts. Dascillus, Latr. 



DasciUiis, 



Oblong-ovate, convex. Brown, covered with very thick, 

 fine, gray pubescence ; apex of abdomen, and in female 

 antennae, legs and elytra yellow-brown. L. 4 — 5| 1. 

 Common. D. cervinus, Lin. 



