64 Mites Injurious, to Domestic Animals. 



male divided into two segments by a transverse line (see fig. 22 b) 

 is found on the feathers of the turkey, peacock (var. ginglymura), 

 and fowl, whilst another (M. columbae, Bucnholz, figs. 20 and 21) 

 occurs on the domestic pigeon, fowl, canary, and certain other 

 birds ; a third (M . velata, Megnin, fig. 22 a) is found on ducks. 



Pterolichus obtusus, Kobin (figs. 23 and 24) is a feather mite 

 occurring on several kinds of birds, especially on the red-legged or 

 French partridge (Perdrix rubra), and is sometimes found on fowls. 



' 





FIG. 51. 



Demodex bovis (p. 83). Ventral view of female, x 335, and dorsal and 

 lateral views of male, x 324. 



The specimens of this mite figured in this pamphlet were taken on 

 chickens in the United States. Another member of the genus 

 (Pterolichus bicaudatus, Gervais, figs. 25 a and 26 a) occurs on 

 ostriches in South Africa and also in California, whilst an allied 

 species (P. sculpturatus, Hirst, figs. 25 b and 26 b) lives on and inside 

 the feathers of the South African ostrich in the Transvaal. Another 

 feather mite (Freyana chanayi, Trouessart) is met with on turkeys 

 (fig. 30). Two species of Dermoglyphus (D. minor, Norner, and D. elon- 

 gatus, Megnin) live inside the quills of the feathers of fowls, the latter 



