ITCH MITES. 



305 



CASE Sarcoptes rupicapr^ {Hcring). 

 On the chamois. 



Sarcoptes dromedarii {Gei-v., Ann. Sc. Nat 

 1841). 



Procured by M. Gervais in the mangey 

 crusts of a dromedary which had newly 

 arrived at the Jardin des Plantes from 

 Africa. As soon as it was found that it 

 was suffering from the itch it was killed ; 

 an extreme measure which would not be 

 thought of now. From the figure given 

 by Gervais, it appears to have been a ^ 



,. - _ . Sarcoptes dromedarius. Copied 



very well marked species, but belonging -""--■— 



to the same genus as S. scabiei. 



from Gervais' figure. 



Nos. Sarcoptes mutans {Rohm and Lanq., Comptes-Rendus, xlix. 1859 • and 

 6.7,8. Bull. Soc. Imp. Nat. Mosc. xxxiii. i86o).-6. Magnified sketch of 



male, upper side; 7. Ditto of male, side view; 8. Ditto of female, under 



side. All taken from M. Robin's figures. 



Sarcoptes mutans (male), under side. Reduced 

 from Robin's figttre. 

 The joints of the palpi are omitted. 



Sarcoptes mutans, female. Reduced 

 irom Robin's figure. 



This species is a parasite on the domestic fowl. We owe our 

 knowledge of it to MxAI. Lanquetin Reynal, and Professor Robin. 



