316 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 99 



eyes. Dorsal setae broadly squamiform, serrate, six pairs on propodo- 

 soma and eight pairs on hysterosoma. Leg I about 230/t long ; femur 

 of all legs with a dorsal squamiform serrate seta similar to those on 

 dorsum of mite. Tarsus I, 24/x long; tibia I, 52/x long; sensory seta of 

 tarsus I almost half as long as tarsus; guard seta, if present, not seen. 

 Length of body 300/t, including rostrum 407)a; approximate width 

 ISG/x. 



Male. — Similar to female. Palpi elongate; femur about twice as 

 long as wide, dorsal seta simple, serrate ; ventral seta appears to be on 

 large tubercle; other palpi setae simple; palpal claw with 4 basal 

 teeth; venter of rostrum with a series of about 11 teeth jutting out 

 beneath base of palpus. Peritreme with seven pairs of segments; 

 dorsal pattern between peritreme composed of longitudinal striations. 

 Body setae and striations more or less as in female; seven pairs of 

 setae on propodosoma and six pairs on hysterosoma. Leg I about 213/x 

 long ; femur of all legs with squamif orm-serrate seta. Tarsus I, 67/i 

 long; tibia I, 47/a long; sensory seta on tarsus I slightly more than half 

 as long as tarsus; guard seta, if present, not seen. Length of body 

 233/x, including rostrum 400/i ; width 140/x. 



Type habitat. — Found on Glaucomys volans querceti (Bangs). 



Type locality. — Welaka, Fla. 



Type.—U.^kM. No. 1777. 



The single type female and allotype male were collected by S. C. 

 Moore, August 16, 1946. 



EXPLANATION OF PLATES 

 Plate 6 



1-3. Cheyletiella parasitivorax (Megnin) : 1, Gnathosoma, female; 2, tarsus 

 and tibia I, female ; 3, dorsal view of body, female. 



4,5. Neocheyletiella canadensis (Banks) : 4, Dorsal view of body, female; 5, 

 tarsus I, female. 



6)-9. Neocheyletiella smallwoodae, new species : 6, Guatbosoma, female ; 7, 

 tarsus and tibia I, female ; 8, dorsal view of body, male ; 9, dorsal view of 

 body, female. 

 10. Neocheyletiella rohweri, new species : 10, Dorsal view of body, female. 

 11-13. Neocheyletiella chanayi (Berlese and Trouessart) : 11, Gnathosoma, fe- 

 male ; 12, dorsal view of body, female ; 13, tarsus and tibia I, female. 



Plate 7 



14-16. Clieyletus eruditus (Schrank) : 14, Gnathosoma, female; 15, dorsal view 



of body, female ; IG, tarsus and tibia I, female. 

 17-19. Cheyletus hendersoni, new species: 17, Gnathosoma, female; 18, dorsal 



view of body, female ; 19, tarsus and tibia I, female. 

 20-22. Cheyletns doddi, new species: 20, Gnathosoma, female; 21, dorsal view 



of body, female ; 22, tarsus and tibia I, female. 

 23-25. Cheyletus fortis Oudemans : 23, Gnathosoma, female; 24, dorsal view of 



body, female ; 24A, dorsal body seta ; 25, tarsus and tibia I, female. 



