June, ’23 
JONES AND BRADLEY LOUISIANA HORSEFLIES 
307 
Summary of the Life History for a Period of Five Years 
Overwintering larvae 
New generation 
Partial 2nd 
Generation 
Year 
Pupation 
Adults 
emerged. 
Eggs laid 
Pupation 
Adults 
emerged. 
Eggs laid. 
1918 
Aug. 13 
Sept. 14 
1919 
• 
July 24- 
Aug. 12 
Aug. 20- 
Sept. 13 
1920 
May 31- 
June 1. 
June 8-11 
Aug. 24- 
Sept. 4. 
1921 
May 18. 
Aug. 1-9. 
1922 
May 20-26. 
June 1-7 
June 7 1 
Aug. 1-7 
Aug. 10-28. 
Aug. 18- 
Sept. 5. 2 
x 56 eggs laid by an individual female. 
2 399 eggs laid by six females. 
from the lower branches of the tree; many were missed and some fell to 
the ground in collecting and were lost. On an examination at the 
laboratory the following species were discovered; 77 Sparganothis idaeu- 
salis Walk., 24 Eulia velutinana Walk., 3 Stenoma algidella Walk., 1 
Ancylis nubeculana Clem., 1 Tmetocera ocellana SchifL, and one un¬ 
determinable larva. It seems very evident, therefore, that this species 
is worthy of attention by fruit growers. 
Literature Cited 
Fernald, C. H. Trans. Am. Ent. Soc. Vol. 10, 1882. 
Frost, S. W. Bull. 169, Pa. State College. 
Jl. Econ. Ent. Vol. 12:447, 1919. 
Jl. Econ. Ent. Vol. 14:324, 1921. 
Smith, J. B. Insects of New Jersey, 1910. 
OBSERVATIONS ON TABANIDAE (HORSEFLIES) IN LOUISIANA 
By Thos. H. Jones and W. G. Bradley, 
Experiment Stations , Louisiana State University, Baton Rouge , La. 
Abstract 
The observations here given in brief supplement the reports of Professor J. S. 
Hine on the Tabanidae or horseflies of Louisiana. Fourteen additional species 
have been taken. The larvae of ten species have been collected in the fieldand reared 
to the adult stage. During 1922 Tabanus pumilus was the worst stock pest of all 
tabanids in the vicinity of Baton Rouge. Two species of dipterous parasites have 
been reared from tabanid larvae. 
During 1905 and 1906 Professor J. S. Hine made a study of the 
Tabanidae of Louisiana. The results of his work have been published 
in Circular No. 6 of the Louisiana State Crop Pest Commission (also 
published as Bulletin No. 5 of the Gulf Biologic Station) and in Bulletin 
No. 93 of the Louisiana Agricultural Experiment Station. As indicated 
