U.S. NATIONAL MUSEUM 



PROCEEDINGS. VOL. 82. ART. 30 PL. 3 



NEW SPECIES OF PARASITIC MITES. 



1, Hemilaelaps amerkanuR, ventral view of cephalothoracic region. 2, II. dislinctus, veuiral view. 3 Tetra. 



gonyssus microti, ventral view. 4, T. microti, cheli.era of male. .5. Ceratowj.sus occidental,,, dorsal v .e« . 



(Drawings by Eleanor A. Carlin and Mrs. Kalherine Munroe.) 



