ORDER COLEOPTERA. 



103 



Family Anthicidae. Hind coxae not prominent; antennae rarely 

 flabellate. Noloxus anchora, Hentz. 



FIG. 99.Epicauta cinerea. a, end of second larval stage; c, d, coarctate larva 

 of E. vittata; e,f, pupa of E. cinerea. After Riley. 



Family Mordellidae. Antennae filiform ; hind coxae laminiform; 

 prothorax much narrowed in front; elytra narrowed behind. Mor- 

 della 8-punctata Fabr. 



Family Cephaloidae. Head prolonged behind and gradually nar- 

 rowed. Cephaloon lepturides Newman. 



Family CEdemeridae. Middle coxae very prominent. Nacerdes 

 melanura (Linn.). 



Family Pythidae. Antennae free; thorax not margined; disk not 

 impressed at base. Pytho niger Kirby. 



Family Melandryidae Antennae free; thorax margined at sides; 

 disk with basal impressions. Melandrya striata Say. 



Family Monommidae. Antennae received in grooves. Hyporhagus 

 opaculm (Lee.). 



Family Lagriidae. Penultimate joint of tarsi spongy beneath. 

 Arthromacra lenea Say. 



Family Othniidae. Ventral segments five, free ; anterior coxae 

 small. Othnius umlyrosus Lee. 



Family Cistelidae. Tarsal claws pectinate. Cistela sericm Say. 



Family JEgialitidae. Ventral segments six, the last two closely 

 united, the first two connate, ^ffigialites debilis Mann. 



Family Tenebrionidae. Tarsal claws simple; 5 ventral segments, 

 in part connate; antennae usually thickened towards the end; anterior 

 and middle tarsi 5- jointed; hind tarsi 4-jointed, the first joint almost 

 always longer than the second; wings often wanting. This very 

 extensive family is difficult to diagnose. The larva? are slender, 

 flattened, horny, resembling wire-worms, and the last segment of 

 the body often bears two spines. The larva of Tenebrio molitor Linn., 

 the meal-worm, occurs in corn and rye meal, and both beetles and 

 larvoe feed on ship-biscuit. Other genera are Helops, Boletophagus, 

 Blaps, Eleodes, Upis, etc. 



Section Isomera. 

 Phytophaga. 



This group is difficult to define, but all agree in feeding 

 on vegetable matter. 



Family Bruchidae. -These beetles are " Chrysomelidae with the 

 submentum distinctly pedunculate;" front of head prolonged into a 



