7 6 Mites Injurious to Domestic Animals. 



Cheletoides uncinata, Heller, 1880. 



A much less elongated form than the two species of Syringophilus 

 figured above. It lives in the quills of the feathers of the peacock 

 (Pavo cristatus). 



Sarcopterinus, Railliet, 1893. 



Sarcopterinus ( = Harpirhynchus)nidulans, Nitzsch, 1818, lives in 

 colonies in the follicles of the feathers, and gives rise to tumours 



FIG. 64. 



t, (b) Dorsal 



Dermanyssus aegyptius (p. 87), x 47. (a) Ventral aspect, 

 [aspect. (After Hirst, Bull. Ent. Res. 1914.) 



or cysts in the skin. It occurs in a number of birds, including 

 pigeons. 



Sub-family EUPODINAE. 

 Genus Tydeus, C. L. Koch, 1842. 

 Tydeus molestus, Moniez, 1889. 

 This mite is described by Moniez as occurring in very large 



