XXXIV INTRODUCTION. 



First and second ventral segments connate ; antennae serrate (pectinate in 



Xenorliipis % ); tarsi with membranous lobes, (p, 193) Buprestic.*;. 



Ventral segments free (except in Anobium and Gastrallus). 2. 



2. Tarsi 4-jointed ; antennae clavate (flabellate in Rliii^idandrus;. 



(p. 232) CioiD^. 

 Tarsi lieteromerous. (p. 233) Spuindid^:. 



Tarsi 5-jointod. 3. 



3. First ventral segment elongated ; antenna; terminated by a 2-jointed 



club. (p. 229) Lyctina. 



Fir3t ventral not elongated. 4. 



4. Hind coxte sulcate for reception of thighs. 5. 

 Hind cox* not sulcate, flat. 10. 

 Hind coxae not sulcate, promim^nt. 12. 



5. Front coxae globose. 6. 

 Front coxae transverse. 7. 



6. Prothorax loosely articulated, j)rosternnm prolonged behind ; front 



coxal cavities entirely prosternal. (p. 176) ELATERiDiK. 



Prothorax firmly articulated, presternum prolonged behind ; front 



coxal cavities closed behind by mesosternum ; antennae sometimes 



with 3-jointed serrate club. (p. 192) Thkoscid^k. 



7. Onychium small or wanting. 8. 

 Onychium large and hairy. (l). l?."")) RniPicERiDiE. 



8. Head not constricted behind ; eyes granulated. 9. 

 Head constricted behind; eyes smooth. (p. 229) CupesiDjE. 



9. Mesothoracic epimera attaining the coxae. (p. 167) Dascyllid^k. 

 Mesothoracic epimera not attaining the coxaj. (p. 220) Ptinid^k. 



10. Prosternum prolonged behind. 11. 

 Presternum not prolonged behind; tarsi with membranous lobes. 



(p. 216) Clerid^k." 



11. Front coxal cavities entir<4y prosternal. (p. 191) Cerophytime. 

 Front coxal cavities partly in mesosternum. (p. 193) Lissomini, 



12. Front coxae without trochantin. 13. 

 Front coxae long, with distinct trochantin. 14. 



13. Front coxae large, globose. (p. 227) Bostrichinm. 

 Front coxae conical prominent; tarsi slender. (p. 231) LymexylidjE. 



14. Ventral* segments seven or eight. (p. 201) LAMPYRiOi^. 

 Ventral segments five or six. (p. 212) Malachiid^. 



All the families at present recognized as members of this series 

 are represented in our fauna. 



LAMELLICORNIA. 



This series is one of the most sharply defined, and its members 

 have never by accident been placed elsewhere, and very few for- 

 eign elements have been introduced. The antennte are terminated 



