TEKEDILIA. 73 



TEHEDILIA. 



A. First tarsal joint about equal in length to second. 



Abdomen with five ventral segments. 



a. First abdominal segment not much longer than the 

 rest. 



Antennae with from eight to eleven joints ; prosternum 

 without any process toward mesosternum; tarsi five- 

 jointed. Ptinidae. 



J), First abdominal segment much longer than the rest. 



Antennae ten-jointed; prosternum without process toward 

 mesosternum; tarsi five-jointed. Coniporidae. 



S. First tarsal joint very small. 



Abdomen with five ventral segments, first segment much 

 longer than the rest. 



a. Tarsi five-jointed. 



jT. Club of antennae three-jointed. 



Antennae with from nine to eleven joints, the three 

 apical joints being larger ; prosternum without process 

 toward mesosternum ; tarsi with five (rarely four) joints. 



Bostrychidae. 

 II. Club of antennae two-jointed. 



Antennae eleven-jointed ; elytra with punctured striae ; 

 second tarsal joint not large. Lyctidae. 



h. Tarsi four-jointed. 



Antennae witli from eight to eleven joints, club three- 

 jointed ; tibiae without apical spines. Cissidae. 



PTINIDAE. 



A, Antennae inserted on forehead. 



Pronotum not separate from sides of prothorax. 



Ptinides. 

 H, Antennae inserted close to anterior margin of eyes. 



Pronotum separated by a raised line from sides of pro- 

 thorax. Anohiides, 



