366 Ac urology 



scribed from pigeons. Other birds such as pheasants and geese suffer 

 from a depluming itch in France. 



References: 



Baker, D. W. .1946. Barn Itch. N.Y. State Vet. Col, Vet. Expt. Sta., 



Parasit. Lab., 36 pp. 

 Friedman, R. 1942. Biology of Acarus scabiei, 183 pp. Froben Press, N.Y. 

 Grandjean, F. 1938. Observations sur les acaridiae (1 serie) Bull. Soc. 



Zool. France 63(4-5) : 21 4-224. 

 Hirst, S. 1922. Mites injurious to domestic animals. Brit. Mus. (Nat. 



Hist.) Econ. Ser., No. 13. 

 Imes, Marion. 1918. Cattle Scab. U.S. Dept. Agr. Farmers' Bull. 1017 



(revised 1935). 

 . 1924. Sheep Scab. U.S. Dept. Agr. Farmers' Bull. 713 (revised 



1927, 1935). 

 Mellanby, K. 1943. Scabies. Oxford Univ. Press. London. 81 pp. illus. 

 van Eyndhoven, G. L. 1947 (1945). Beschrijving van een nieuwen vleer- 



muisparasiet Notoedres vanschaiki v. Eyndh. 1946 (Acar.). Tijd- 



schrift V. Ent. 88:132-154. 



Cytoditidae Gudemans, 1908 



Figure 296 



Figure 296 Cytodites niidiis (Vizioli). 

 Venter of female. (After Hirst 1922) 



Genus: 



Diagnosis: The cytoditids are me- 

 dium-sized mites measuring from 

 0.45 to 0.60 mm. long and shaped 

 Hke an egg. Their skin is smooth 

 dorsally but has fine striae in all 

 other regions. There are no vertical 

 setae and only a few tiny, dorsal 

 setae. The gnathosoma is terminal 

 and the chelicerae and pedipalps 

 are fused into a sucking tube. All 

 tarsi have caruncles on long stalks 

 without claws. No genital suckers 

 are present. Males do not have 

 adanal copulatory suckers. 



Cytodites Megnin, 1877 (= Cytoleichus Megnin, 1880) 



Type. Sarcoptes nudus Vizioli, 1870 {— Cytodites glaber Megnin, 



1877) 



