MANUAL OF NATUKAL HISTOKY. 183 



generally with a groove ; body depressed ; 

 legs rather short. Found in carrion and the 

 carcasses of animals. 



19. Family. — Bone-Beetles (Nitidulidae). Antennae 



abruptly clavate ; club 3 or 4-jointed ; palpi 

 filiform, short ; mandibles elongate, notched 

 at tip ; head inserted up to eyes in thorax ; 

 thorax broad ; body flat, wide ; legs short. 

 Feed on bones and other animal remains. 



20. Family. — Hairy Fungus - Beetles (Mycetopha- 



gidae). Antennae gradually clavate ; club 

 from two to four joints ; palpi rather long ; 

 maxillae bilobed ; mandibles short, bifid at 

 tip ; labium transverse ; head somewhat in- 

 serted into thorax ; body rather wide, hairy 

 or pubescent. Living principally on decay- 

 ing funod. 



2J. Family. — Smooth Fungus-Beetles (Erotylidae). 

 Antennae ending in a large 3-jointed club ; 

 palpi with apical joint large ; maxillae com- 

 pressed, subulate ; mandibles short, dentate 

 at tip ; head small ; body oval or hemispheric, 

 smooth, polished. Feeding chiefly on putre- 

 scent fungi. 



22. Family. — Elongate Bark-Beetles (Engidae). An- 

 tennae short, more or less distinctly clavate ; 

 club 2 — 5-jointed; palpi rathers hort ; maxillae 

 mostly one-lobed ; mandibles bifid at tip ; 

 labrum transverse ; head deeply inserted in 

 thorax ; body elongate, glabrous. Usually 

 found under bark of trees. 



