622 I'ROCEEDIN(^S OF THE NATIONAL MUSEUM. vol. xxxii. 



Family DEMODECID.E. 



DEMODEX. 

 Dniiode.r Owen. Leet. Invert. Anat.. 1.S4.3, ]>. 252. 



D. bovis Stiles, ('anad. Entoiii., 1S!»2. ]>. 2S(;. 



D. folliculorum Simon, Arch. Anat. I'liysicjl. IMed., 1842. |). 21S (Acrirus). — 



Megnin. I'arasit, 1880, p. 2<;(;. 



iKtiiiiiiis Leywg, Arcli. Natnr.i:;.. XXV. 18.19. p. ."Wn. 

 D. phylloides C'sokor, Oesterr. Vierteljahrsehrift. f. Veteriniirkundc LI. 1879, 



p. 13o- — ^Wright, Proc. Can. Inst. (3), I, 1883. p. 275. 



Family UNKNOWN. 



concolor Haldemann, Binney, Terr. Air-Breatbing Mollusks U. S., II, 1851, 



]». 107 (Hypopus). 

 gryllaria Le Baron, 2nd Illinois Kept.. 1871, p. Gl (Atowna). 

 odontalgiae Fitch, 14tLi New York Kept., 1871, p. 371 {Ixodes). [Not an Ixodes. 



Perhaps an Oribated nymph, or possibly something like Dermacarus in 



TyroglyphidjTe ; no Omnasid will fit.] 

 americanus Riley, 6th Missouri Kept., 1874, p. 122 {Lcptus). 

 irritans Riley, 6th Missouri Rept, 1874, p. 122 (Leptus). 

 aran» Say. Jonrn. Phil. Acad., II, 1821, p. 80.— Le Conte, Edit.. II. 1850, ]>. 23 



(Leptus). 

 coniata Say', Jonrn. Phil. Acad., II, 1821, p. 82. — Le Conte, Edit.. II. 1859. p. 23 



( Ocijpete ) . 

 hispus Say. .Journ. Phil. Acad., II, 1821. p. 81.— Le Conte, Edit., II, 1859, p. 23 



{Leptus). 



