11] THE HEAD-CAPS CLE OF COLEOPTERA—SnCKXEV 11 



2. Carabidae. 



Carabinae. — Calosoma calidum (Figs. 4, 152, 299, 446). 

 Harpalinae. — Harpalus erraticus (Figs. 5, 23, 24, 153, 300, 447). 



3. Amphizoidae. — Amphizoa lecontei (Figs. 6, 154, 301, 448). 



4. Omophronidae. — Omophron americanum (Figs. 7, 155, 302, 449). 



5. Haliplidae.— Peltodytes 12-punctatus (Figs. 8, 156, 303, 450). 



6. Dytiscidae. — Cybister fimbriolatus (Figs. 9, 157, 304, 451). 

 Gyrinoidea. 



7. Gyrinidae. — Dineutes americanus (Figs. 10, 158, 305, 452). 



SUBORDER POLYPH.\GA 



Hydrophiloidea. 



8. Hydrophilidae. 



Hydraeninae. — Hydraena marginicollis (Figs. 11, 159, 306, 453). 

 Hydroscaphinae. — Hydroscapha natans (Figs. 12, 160, 307, 454). 

 Hydrophilinae. — Hydrous triangularis (Figs. 13, 161, 308, 455). 



Hydropliilus obtusatus (Figs. 14, 162, 309, 456). 



SiLPIIOIDEA. 



9. Platypsyllidae. — Platypsyllus casloris (Figs. 15, 163, 310, 457). 



10. Brathinidae.— Brathinus nitidus (Figs. 16, 164, 311, 458). 



11. Leptinidae. — Leptinus testaceus (Figs. 17, 165, 312, 459). 



12. Silphidae. — Necrophorus carolinus (Figs. 18, 166, 313, 460). 



13. Clambidae.— Clambus puberulus (Figs. 19, 167, 314, 461). 



14. Scydmaenidae. — Connophron fossiger (Figs. 20, 168, 315, 462). 



15. Orthoperidae. — Molamba lunata (Figs. 21, 169, 316). 



ST-A-PIIYLINOIDEA. 



16. Staphylinidae. 



Steninae. — Stenus flavicornis (Figs. 22, 170, 317, 463). 

 Paederinae. — Gastrolobium bicolor (Figs. 25, 171, 318, 464). 

 Staphylininae.— Creophilus villosus (Figs. 26, 172, 319, 465). 

 Tachyporinae. — Tachinus fimbriatus (Figs. 27, 173, 320, 466). 

 Aleociiarinae.— Aleochara lata (Figs. 28, 174, 321, 467). 



17. Pselaphidae.— Pilopius lacustris (Figs. 29, 175, 322, 468). 



18. Clavigeridae.— Fustiger fuchsi (Figs. 30, 176, 323). 



19. Ptilidae.— Limulodes paradoxus (Figs. 31, 177, 324, 469). 



20. Sphaeriidae.— Sphaerius politus (Figs. 32, 178, 325, 470). 



21. Scaphidiidae. — Scaphidiumquadriguttatum (Figs. 33, 179,326,471). 



22. Sphaeritidae.— Sphaerites glabratus (Figs. 34, 180, 327, 472). 



23. Histeridae. — Hister memnonius (Figs. 35, 181, 328, 473). 

 Cantharoidea. 



24. Lycidae.— Calopteron terminale (Figs. 36, 182, 329, 474). 



25. Lampyridae. — Photinus pyralis (Figs. 37, 183, 330, 475). 



26. Phengodidae. — Phengodes plumosa (Figs. 38, 184, 331, 476). 



