386 REFERENCES 
Laspeyresia interstinctana, Ill. Exp. Sta. Bull. 134. 
Laspeyresia prunivora, Bur. Ent. Bull. 68-V. 
Lecanium corni, Bur. Ent. Bull. 80-VIII. 
Lema trilineata, 1st Rpt. Mo. State Ent., page 99. 
Lepidosaphes ulmi, Bur. Ent. Cire. 121. 
Lepisma saccharina, Bur. Ent. Cire. 49. 
Leptinotarsa decemlineata, Bur. Ent. Cire. 87. 
Leucania unipuncta, Ill. Exp. Sta. Bull. 95. 
Ligyrus gibbosus, Bur. Ent. Bull. 33. 
Ligyrus rugiceps, Bur. Ent. Bull. 54. 
Lipeurus spp., Bur. Ent. Bull. 5. 
Lizrus concavus, Bur. Ent. Bull. 23. 
Lozostege similalis, 23d Rpt. Ill. State Ent., page 89. 
Lozostege sticticalis, Colo. Exp. Sta. Bull. 98. 
Lygidea mendaz, N. Y. Cornell Exp. Sta. Bull. 291. 
Lygus pratensis, Mo. Exp. Sta. Bull. 47. 
Lyperosia irritans, Bur. Ent. Cire. 115. 
Macrodactylus subspinosus, N. Y. Geneva Exp. Sta. Bull. 331. 
Macrosiphum pisi, Ill. Exp. Sta. Bull. 134. 
Macrosiphum solanifolii, Maine Exp. Sta. Bull. 147. 
Malacosoma americana, N. Y. Geneva Exp. Sta. Bull. 152. 
Malacosoma disstria, N. Y. Geneva Exp. Sta. Bull. 159. 
Mamestra legitima, Bur. Ent. Bull. 66-III. 
Mamestra picta, 14th Rpt. N. Y. State Ent., pages 201-207. 
Margaropus annulatus, Tenn. Exp. Sta. Bull. 81. 
Mayetiola destructor, Bur. Ent. Bull. 16. 
Melanotus communis, 18th Rpt. Ill. State Ent., pages 27-51. 
Meliana albilinea, Iowa Exp. Sta. Bull. 122. 
Melittia satyriniformis, Ga. Exp. Sta. Bull. 45. 
Meloide, Bur. Ent. Bull. 43. 
Melophagus ovinus, Bur. Ent. Bull. 5. 
Memythrus polistiformis, W. Va. Exp. Sta. Bull. 110. 
Menopon spp., Bur. Ent. Bull. 5. 
Meromyza americana, Bur. Ent. Bull. 42. 
Metallus rubi, Del. Exp. Sta. Bull. 87. 
Mineola indiginella, 4th Rpt. Minn. State Ent., pages 211-218. 
Mineola vaccinii, Mass. Exp. Sta. Bull. 115. 
Monomorium spp., Bur. Ent. Cire. 34. 
Monophadnoides rubi, N. Y. Geneva Exp. Sta. Bull. 150. 
Monoptilota nubilella, Bur. Ent. Bull. 23. 
Monoxia puncticollis, 24th Rpt. Colo. Exp. Sta., pages 108-111. 
Murgantia histrionica, Bur. Ent. Cire. 103. 
