THE ENTOMOLOGIST 



Vol. XXXI.l 



OCTOBEK, 1898. 



[No. 425. 



HIPPOBOSCA EQUINA, Linn., AT YSTALYFEBA, 

 GLAMORGANSHIRE. 



By Eleanor A. Ormerod, F.E.S. 



Hippobosca equina, 1 and 2, nat. size and magnified from life ; 3, pupa removed 

 from egg-like puparium (after Eeaumur) ; 4, puparium, nat. size and magnified, 

 before complete colouration. 



On August 18th I received a letter from Dr. D. Thomas (Medical 

 Officer of Health) from Tyr-waun, Ystalyfera, Glamorganshire, 

 South Wales, asking my opinion on some specimens enclosed, of 

 which he observed that "they are known in this district as 

 'Forest Flies.' They are a perfect terror to horses, some 

 animals becoming quite beyond control. Fortunately, accord- 

 ing to my experience, they are not very frequently met with. I 

 have generally found them in the parish of Ystradgynlais in 

 Breconshire, among hillside farms, where there is plenty of 

 scrubby timber." 



ENTOM. — OCT. 1898. Y 



