XXXU INTRODUCTION. 



12. Postei'ior coxae not sulcate ; 



Posterior coxse contiguous. (p. 177) PhalacriD/D. 



Posterior coxae separated ; «. 



a. First ventral more elongated. (p. 229) Lyctimc. 

 Ventral segments subequal ; /;. 



b. Middle coxal cavities open externally, (p. 131) Cucujid^e. 

 Middle coxal cavities closed by the sterna ; r. 



c. Prosternum not prolonged behind. (p. 140) Diplii/Uiiu. 

 Prosternum prolonged, meeting the mesosternum ; </. 



d. Anterior coxal cavities open behind. (p. 135) CRVPTOPHAGiDiE. 

 Anterior coxal cavities closed behind. (p. 124) Dacnes. 



Posterior coxae sulcate to receive the thighs. (p. 193) Throscini. 



13. Tarsi with second joint dilated ; 



Claws appeudiculate or toothed ; first ventral with coxal lines. 



(p. 113) C0CCINELLID.«. 



Claws simple ; first ventral without lines. (p. 119) Endomycuid.s. 

 Tarsi with second joint not dilated. 15. 



14. Wings fringed with hairs ; 



Posterior coxse laminate, contiguous. (p. 82) Clamhini. 



Posterior coxae not laminate, separate. (p. 112) Corylophid^. 



Wings not fringed with hairs. 19. 



15. Elytra entire ; ventral segments nearly equal. (p. 155) Latiiridiid.=k. 

 Elytra truncate ; ventral segments 1 and 5 longer. 



Maxillae one lobed ; front coxae subtransverse. (p. 152) Smicripini. 



Maxillae bilobed ; front coxse small, rounded, (p. 154) Monotomid.i^. 



1(5. Posterior coxae flat, not sulcate. 17. 



Posterior coxae grooved for the reception of the thighs. 20. 



17. Antennae straight ; 



Tarsi more or less dilated, first joint not .short. (p. 148) Nitidulid*. 

 Tarsi slender, first joint short. (p. 152) Trogositida:. 



Tarsi slender, joints 1-4 short; posterior tarsi 4-joihted. 



(p. 233) SPHINDID.Ii. 



Antennae geniculate; tibiae usually all dilated. (p. 143) Histerid,*:. 



18. Posterior coxEe sulcate for the thighs ; body usually scaly or pubes- 



cent. (]). 140) DEKMESTlD.li. 



19. Anterior coxae transverse. (p. 151) C ijhouphalini . 

 Anterior coxae globose ; 



Tarsi slender. (p. 120) Mycetceini. 



Tarsi more or less dilated and spongy beneath, (p. 122) Erotylid^e. 

 Anterior coxae oval ; 



Coxae separated by corneous prosternum ; 



Form depressed, head free. (p. 138) MYCETOPHAGiP.ii. 



Cylindrical, thorax prolonged over the head. (p. 232) CioiD^t!:. 

 Coxae contiguous, prosternum semimembranous. 



(p. 161) Georyssid.?.:. 



20. Body oval, convex, legs retractile. (p. 158) BykkuiDx'e. 



