233 Indian Museum Notes. Reprints. [Vol. IV. No. 4.] 



or yellow brown, thicker behind than before, and the segments 2 to 

 9 above and 2 to 10 below with a single row of yellowish, brown- 

 tipped spines. 



The pupa he described as dark-brown or black, the segments 

 with only a single series of horny spines, its length of life in this 

 stage from thirty to forty-two days. 



Professor Garman^ in a recent paper on the subject gives a 

 record of the occurrence of this species in Kentucky. 



From this record it would appear that the species is somewhat 

 common and troublesome in that region, and as the species has 

 been recorded from many places in this country, it may be looked 

 upon as having quite a general distribution. 



The most essential point in habit of this species is the fact that 

 the eggs are laid on the lips or nostrils, within easy reach of the 

 tongue, and as it is quite probable that they hatch more promptly 

 than those of equt^ it is more difficult to adopt measures of 

 prevention. Measures must consist in preventing as far as possible 

 the deposition of eggs, for which purpose the application of a 

 little tar and fish oil to the hairs of the under-lip may be of 

 service, and where eggs are suspected, the use of a wash of car- 

 bolic acid to the lips and margin of nostrils. 



According to German, the eggs are white, and are attached 

 to the hairs of the lip and throat by the greater part of one side. 

 The species occurs in Europe and has been observed in New 

 England, New York, Ohio, Kentucky, Kansas, Utah, and probably 

 elsewhere in this country. 



Professor Garman gives the following key by which the different 

 species of bot-flies may be distinguished :— 



1. (6) Discoidal cell closed by cross vein. 



2. (3) Wings marked with brown . . • , G. equi. 



3. (2) Wings not marked with brown. 



4. (5) Anterior basal cell nearly or quite equal to the 



discoidal cell in length . . . . G. nasalis. 



5. (4.) Anterior basal cell markedly shorter than the 



discoidal cell . . , , . .« G, hsemorrhoidalls. 



6. (l) Discoidal cell open , . . . . G. pecorum, 



^ The Bot-flies of the Horse, Seventh An. Rep. Ky. Ag. Exp. Sta., p. xxvii. 



G, I. C. P. O.-No. 269 R. & A.— 12-8-99.- i,ooo.~H, R. 



