XXiv TABLE OF FAMILIES. 



Fifth ventral segment not elongated ; 



Hind coxae more or less distant; ventral segments subequal; 

 Epimera reaching the middle coxse, which are distant from 



anterior ones. 20. Cucujid^;. 



Epimera not reaching the middle coxae, which are close to 



anterior ones ; 



Anterior coxal cavities open behind. 21. Cryptophagid.e. 



Anterior coxal cavities closed. Erotylidje.* 



Hind coxae flat ; first ventral segment longer. 14. Phalacrid^e. 



12. Hind coxae not sulcate ; 14 

 Hind coxae sulcate for reception of thighs ; 



Anterior coxae transverse or conical. 13 



Anterior coxae globose ; 

 Anterior coxal cavities closed by inesosternum. 34. Throscid^.j 

 Anterior coxal cavities open behind ; 



Spurs small, ventral segments usually five. 35. Elaterid/E. 

 Spurs large, ventral segments six. 36. Cebrionid^e. 



13. Onychium large, hairy. 37. Rhipicerid.e. 

 Onychium small or wanting ; 



Head not constricted behind ; 



Epimera of mesothorax attaining the coxse. 39. Dascyllid.e. 



Epimera of mesothorax not attaining the coxae. 45. Ptinid^e. X 

 Head suddenly constricted behind. 44. Cppesid,e. 



14. Tarsi with membranous lobes ; bind coxae fiat. 42. Clerid^e. 

 Tarsi not lobed beneath ; hind coxae more or less prominent ; 



Anterior coxae long, without trochantin. 43. Lyjiexylid;e. 



Anterior coxae long, with distinct trochantin ; 



Ventral segments seven or eight. 40. Lampyrid^e. 



Ventral segments six (rarely apparently five). 41. Malachiidje. 

 Anterior coxae large, rounded, without trochantin. 45. Ptinid,e.§ 



* Sub-family Engidae. f Tribe Lissomini. 



t Sub-families Ptinidae and Anobiidae. 

 § Sub-family Bostrichidae. 



