THE STUDY OF ENTOMOLOGY. 651 
ARTICLE XXI. 
ON THE STUDY OF ENTOMOLOGY— By Rusticus. 
(Continued from page 603.^ 
Section 1st — Adephaga Voracious — Subsection 4th, Necrophaga ; 
Beetles that feed on Canion, &c. continued. 
Family XIX, — Nitid'ulidjE ; 6 genera. 
1. Thymalus, 4. Campta, 7. Carpophilus, 
2. Nitidula, 5. Meligethes, 8. Cateretes, 
3. Strongylus, 6, Prla, 9. Micropeplus, 
Family XX — E'ngidee. — 26 Genera, many of which are exceedingly 
minute. 
1. Trichopteryx, 10. Byphillus, 19. Rhyzophagus, 
2. Atomaria, 11. Triplax, 20. Monotoma, 
2. Typhoea, 12. Tetratoma, 21. Crypta, 
4. Cryptophagus, 13. E'ngis, 22. Silvanus, 
5. Antherophagus 14. Ips, 23. Bitoma, 
6. Byturus, 15. Nemosoma, 24. Corticaria, 
7. Mycetoea, 16. Sychita, 25. Latrldius, 
8. Triphyllus, 17. Cerylon, 26. Ly'ctus, 
9. Mycetophagus, 18. Cicones. 
Family XXL Dermestydce. — 4 Genera. 
1. Throscus, 3. Attagenus, 4. Dermestes, 
2. Megatoma, 
The leather-eater (Dermestes lardarius) is destructive to meat, 
and is a very unwelcome intruder into the cahinets of the curious, 
the larvae feed equally well upon dried skins, bark of trees, rotten 
wood, seeds, flowers, and the carcases of dead animals, and is often 
found deeply buried in old bacon, &c. 
Section 2nd — ChilognathomoVpha, Chilognathiform Larva:. 
Subsection 1st — Clavicornes, ivith clavati sublammate Antenna. 
Family XXII. — Byrrhid^ — 7. Genera. 
1. Authrenus, 4. Nosodendron 7. Chaetophora, Kirby. 
2. Trinodes, 5. By'n'hus, 
3. Aspidephorus, 6. Simplocaria. 
The Larvae of the Anthremus Museorum, are among the mostdc- 
