Gulf Biologic Station 



OF- LOUISIAINM. 



Bulletin No. 5. Febkiakv. 1906. 



A Preliminary Report on the Horseflies of Louisiana, With a 

 Discussion of Remedies and Natural Enemies. 



BY .TAMES S. HINE. 



A paper on the horseflies of the State of Louisiana at the 

 present time must necessarily be incomplete, as only a little 

 time, comparatively speakin":, has been put on the subject, and, 

 what is more, the various species wherever found are difficult 

 to 2nak(^ observations upon since the flies in all stages are rather 

 retiring in their habits." The life of the larva is passed in the 

 water or in the ground, and the pupa is difficult fo find, and, 

 moreover, when the adult appears it flies so rapidly, and most 

 of the time in such secluded places, that it is seldom seen ex- 



FiG. 1. — Autumn horsefly iTiibiinHn siilrifnmt > fe- 

 male, natural size. 



ctpt when it alights on animals for the purpose of bitinrr jn 

 <n-der to procure food. Then again, the life cycle often occupies 



