1907.] Wheeler, Fungus-growing Ants of North America. 807 



Fig. 46. — Nest diagram of Trachymyrmex turrifex (Nest R of the tal)le on p. 

 756) in pure sand, showing the elongation of the galleries. 



Fig. 46a. — Deeper portion of the same nest with incipient gardens on the root- 

 lets traversing the two lower chambers. 



Fig. 47. — Attaphila fungicola Wheeler. Male. From nest of Atta texana. 



Fig. 48. — A. fuiujicola. Female; dorsal view. 



Fig. 49. — Same, ventral view. 



Fig. 50. — Attaphila bergi Bolivar. Male, from nest of Acromyrmyx lundi. 

 (After Bolivar.) 



Fig. 51. — A. bergi. Female. (After Bolivar.) 



Fig. 52. — Head of same. (After Bolivar.) 



Fig. 53. — Hypopygimn of same. (After Bolivar.) 



Fig. 54. — A. bergi. — Hypopygium of male. (After Bolivar.) 



Fig. 55. — Fungus garden of Termes belHcosus Smeathm. (After Smeathman.) 



Fig. 56. — Bromatia of same more highly magnified. (After Smeathman.) 



Fig. 57. — Portion of the fungus garden of a Malayan Termes, showing spherical 

 bromatia of Agaricus rajap Holtermann. (After Karawaiew.) Natural size. 



Fig. 58. — Bromatium from the fmigus garden of an African Termite, Termes 

 vulgaris Havil. (After Tragardh.) 



Fig. 59. — Portion of same crushed under a cover-glass and more highlj' magni- 

 fied, to show the component cells. (After Tragardh.) 



Fig. 60. — A fungus garden of the African Eutermes heterodon Sjost. i natural 

 size. (After Sjostedt.) 



Fig. 61. — Section of same. (After Sjostedt.) 



Fig. 62. — Ambrosia beetle (Xyleborus celsus Eichh.) of the hickoiy. Female, 

 enlarged. (After Hubbard.) 



Fig. 63.— A^ celsus, Male. (After Hubbard.) 



Fig. 64. — Piece of hickory showing burrows of X. celsus in the sapwood. (After 

 Hopkins.) 



Fig. 65. — "Ambrosia" or fungus grown by A', celsus enlarged. On the right 

 a few of the filaments more highly magnified. 



