214 BUIvIvETlN THE BUREAU OF FISHERIES. 



Food of LibelIvUud Imagos, Fairport, Iowa, 1916 — Continued. 



Leucorrhinia intacta — Continued . 

 Lepidoptera — 



Butterfly, undetermined Scales in alimentary canal. 



Butterfly, Lycaena comyntas Captured while eating. 



Ephemeridse — Mayfly, Calliahetes, sp Do. 



Odonata — 



Enallagma civile c? Do. 



Enallagma hageni c? Do, 



Tenerals, undetermined In alimentary canal. 



Lihellula luctuosa: 

 Diptera — 



House fly, Musca domestica Taken from mouth. 



Muscid fly In alimentary canal. 



Midge, Chironomus, sp Do. 



Lepidoptera — 



Lyccena comyntas Captured while eating. 



Butterfly, undetermined Scales in alimentary canal. 



Moth, Tortricidse Captured while eating. 



Odonata — 



Ischnura uerticalis Do. 



Leucorrhinia intacta Seen eating. 



Sympetrum, sp In alimentary canal. 



Tenerals, undetermined Do. 



Ephemeridge — Mayiiy, undetermined Do. 



Erythemis simplicicollis: 

 Diptera: 



House fly, Musca domestica Seen picking off window screen. 



Midge, Chironomus , sp In alimentary canal. 



Sarcophaga sarracenia Captured while eating. 



Tabanid fly, Chrysops Williamson, 1900, p. 326. 



Lepidoptera — 



Hcematopsis gratavia Captured while eating. 



Ancyloxcypha numitor Do. 



Pamphila, sp Williamson, 1900, p. 326. 



Fieri? rapce Captured while eating. 



Ephemeridae — Mayfly, undetermined In alimentary canal. 



Odonata — 



Erythemis simplicicollis Captured while eating. 



Argia moesta putrida Do. 



Enallagma hageni Do. 



Lestes vigilax Williamson, 1900, p. 326. 



A rgia vio lacea Do . 



Lestes unguiculatus Captured while eating. 



Plathemi? lydia: 



Diptera — House fly, Musca domestica Seen picking off window screen o 



Lepidoptera — Ancyloxcypha numitor Captured while eating. 



Celithemis eponina: 



Diptera — Syrphid flies Do. 



Food of DamsElfi^y Imagos, Fairport, Iowa, 1916. 



Enallagma hageni: 

 Diptera — 



Midge, Orthocladius , sp Captured while eating. 



Midge, Corynoneura, sp Do. 



Midge, Chironomus, sp In alimentary canal. 



