THE ACARINA OF IOWA 209 



ORIBATELLA Banks. 

 O. aehipteroides Ewing. var. australis Ewing, Bull. Amer. Mus. Nat. 

 Hist., vol. XXXVII, p. 160, (1917). From Ames; under stone; by 

 H. B. El. Type collected by J. B. Guthrie at Red Wing, Minnesota. 



0. quadridentata Banks, Tr. Amer. ent. Soc, vol. XXII, p. 8,( 1895). 



From Ames, September 11, 1909; under old piece of wood; by H. E. E. 



LUCCOPPIA Berlese. 



L. pilos^iis (Banks), Tr. Amer. ent. Soc, vol. XXII, p. 11, (1895). 



From Ames, September 23, 1909; under bark of shell-bark hickory: 



by H. E. E. 



TEGEOCRANUS Nicolet. 

 T. subnigtr Ewing, Bull. Amer. Mus. Nat. Hist., vol. XXXVII, p. 

 163, (1917). Prom Ames, October 7, 1909; under old piece of wood on 

 the ground; by H. E. E. 



DAM^US Koch. 

 D. brevitarsus Ewing, Bull. Amer. Mus. Nat. Hist., vol. XXXVII, 

 p. 164, (1917). From Ames; under old piece of wood; by H. E. E. 



D. sufflexus Michael, Jour. Royal Mdcr. Soc, vol. V, p. 394, (1S85). 



From Ames, September 11, 1909; under old piece of wood; by H. E. E. 



DAMEOSOMA Berlese. 



D. sculptilus Warb. and Pear., Proc. zool. Soc. London, vol. II, p. 564, 



(1905). From Ames, October 14, 1909; under old piece of wood; by 



H. E. E. 



DAMEOLOS Paole. 

 D. apicoUs Banks, Tr. Amer. ent. Soc, vol. XXII, p. 13, (1895). 

 From Ames, October 26, 1909; under old piece of wood; by H. E. E. 

 ORIPODA Pergande and Banks. 

 0. elongata Pergande and Banks, Ann. entom. Soc. Amer., vol. Ill, 

 p. 209, (1910). From Ames, April 16, 1894; in gall on elm twig. 



Family HYPOCHTHONIDvE. 



HYPOCHTHONIUS Koch. 

 H. rufus Koch, Crust. Myr. Arach.. fasc. 3, fig. 19. (1835). From 

 Ames, .June 17. 1913; under a log in moist place; by J. E. G. 



Family HAPLODERMATID.E. 



GINGLYMACARUS Ewing. 

 G. sphaerula (Banks), Tr. Amer. ent. Soc, vol. XXII, p. 16, (1895). 

 From Ames, September 17, 1909; under old piece jf wood; by H. E. ni. 



Family TARSONEiVnD.lE. 



TARSONEMUS Canestrini and Fanzago. 

 T. cMonaspivorus Ewing, Psyche, vol. XVIII, p. 40, (1911). Prom 

 Ames. Specimen collected while studying oyster-shell scale from 

 Chionaspis sp. on poplar; by H. E. E. 



Family TYROGLYPHTD^. 



GLYCIPHAGUS Herlng. 

 G. spinipes Koch, Crust. Myr. Arach., fasc. 33, fig. 1, (1841). Prom 

 Des Moines; on the skin of Xanthocephalus xanthocephalus Bonap: 

 Keyes' collection, Iowa State College Museum. 



14 



