272 PROCEEDINGS OF THE NATIONAL MUSEU]VI vol. 99 



NEOCHEYLETIELLA MACRONYCHA (Megnin), new combination 



Cheyletus macronycha Megnin, Journ. Anat. and Physiol., 1878, p. 12, pi. 29, 



figs. 7, 8. 

 Cheletiella macronycha (Megnin) Oudemans, M6m. Soc. Zool. France, vol. 19, 



pp. 212, 213, 1906. 



Type host. — Passerine birds (exotic). 

 Type locality.' — Bengal. 



NEOCHEYLETIELLA MICRORHYNCHA (Berlese and Trouessart), new combination 



Cheyleticlla microrhyncha Beblese and Tkoxxessart, Bull. Bibl. Sci. Quest., vol. 



2, p. 136, 1889. 

 Cheletiella microrhyncha (Berlese and Trouessart) Oudemans, M6m. Soc. Zool. 



France, vol. 19, p. 213, 1906. 



Type host. — Unknown. 

 Ty2)e locality. — France. 



The publication containing the original description could not be 

 found. 



NEOCHEYLETIELLA CANADENSIS (Banks), new combination 



Plate 6, Figures 4, 5 

 Cheyleticlla canadensis Banks, Proc. Ent. Soc. Washington, vol. 11, p. 133, 1909. 



Female. — Anterior shield covering most of propodosoma, with a 

 pair of long setae in the posterior marginal corners ; five pairs of long 

 marginal setae on propodosoma; all setae about length of propodo- 

 soma. Posterior shield covering most of hysterosoma, posterior mar- 

 gin of shield concave and with a short seta in each corner as figured ; 

 a pair of long shoulder setae, and two pairs of long posterior setae on 

 abdomen, all as long as propodosomal setae. Tarsi I and II with 

 dorsal protuberance. Length 253jLt; width 167/*. 



Type Ao5^.— "Bluebird." 



Type locality. — Guelph, Ontario, Canada. 



This species is similar to Neocheyletiella heteropalpus (Megnin) in 

 having the tarsal protuberances, but it differs in having two dorsal 

 shields and extremely long dorsal setae; it differs from N. pinguis 

 (Berlese) in having the long propodosomal setae and in having two 

 pairs of long posterior setae rather than one long and one short pair. 

 The above description was taken from the type which is in the Museum 

 of Comparative Zoology, Cambridge, Mass. 



NEOCHEYLETIELLA HETEROPALPUS (Megnin), new combination 



Cheyletus heteropalpus Megnin, Journ. Anat. and Physiol., 1878, p. 11, pi. 29. 

 Cheyletiella heteropalpus (Megnin) Berlese, Aeari, Myriapoda et Scorpiones 



hucusque in Italia reperta, Prostigmata, fasc. 28, No. 2, 1886. 

 Cheletiella hetcropalpa (Megnin) OZ45ffl(&:, M6m. Soc. Zool. France, vol. 19, p. 



213, 1906. 



