11 



La^-ioderma serviforne, IV, 126. 



head of larva, IV, 126. 

 Lixus ooncavus, work of, XXIII, 61, 67. 



beetle, egg, larva, and pupa, XXIII, 62. 

 Macrobasis unicolor, XXX, 23. 

 Magdalis senescens, insect, larva, and pupa, XXII, 39. 



work of, with insect in situ, XXII, 40. 

 3Ionarthrum fasciatum, VII, 28. 



gallery of, VII, 26. 

 mali, VII, 28. 



gallery of, VII, 27. 

 ambrosia of, VII, 27. 

 Necrobia rutipes, IV, 105. 

 Nodonota puncticollis, VII, 60. 

 Pentilia misella, III, 52. 

 Phkeotribns picea, work of, XXVIII, pi. xi. 

 Pityophthorus cariniceps, work of, XXVIII, pi. viii. 

 Platypus compositus, VII, 14. 



ambrosia of, VII, 16. 

 larva, VII, 15. 

 work of, VII, 14. 

 Polygraphus rufipennis, galleries of, XXVIII, pi. 9. 

 Rhynchites bicolor, XXVII, 99. 

 Silvanus bicolor, VIII, 11. 

 gossypii, VIII, 13. 

 mercator, VIII, 12. 

 surinamensis, IV, 121; VIII, 12. 

 Sitodrepa panicea, IV, 124. 



head of larva, IV, 125. 

 Spermophagus pectoralis, female and infested seed, XXIII, 38. 

 Systena blanda, larva, adult, and eggs, XXIII, 22. 



tfeniata, dark variety, XXIII, 23. 

 Tenebrio molitor, IV, 116. 



obscurus, IV, 118. 

 Tenebroides mauritanicus, IV, 123. 

 Tetropium cinnamopterum, mines of, XXVIII, pi. x. 

 Tomicus picea, work of, XXVIII, pi. viii. 

 Tribolium confusum and ferrugineum, IV, 113. 

 Trichius piger, XXVII, 101. 

 XyleboruB celsus, VII, 22. 



ambrosia of, VII, 24. 

 gallery of, A^II, 23. 

 dispar, VII, 22. 



gallery of, VII, 22. 

 fuscatus, VII, 21. 

 perforans, VII, 21. 

 pubescens, VII, 19. 



gallery of, VII, 19. 

 amljrosia of, VII, 20. 

 yylographus, VII, 24. 



gallery of, VII, 25. 

 ambrosia of, VII, 25. 

 Xylocrius agassizii, adult, larva, and pupa, XXIII, 90. 

 stem with larva, XXIII, 91. 

 work of, XXIII, 91. 



