1910 ENTOMOLOGICAL SOCIETY. 99 



and various other places. They can easily be recognized by a bristle arising from 

 a small indentation on the posterior corners of the cephalothorax, and abdomen 

 is well marked. The mouth parts are obscure and the palpi very small. An interest- 

 ing thing about this family is the manner in which some of the nymphs collect 

 and carry moulted skins, dirt, moss, etc., on their backs. The shapes and appendages 

 cf this family are strikingly peculiar in many species. 



Galumna emarginata. Banks. In cavities in stone. T. D. J., Guelph. 



Galumna moesta, Banks. Cavities in stone. On mangels in root cellar, 

 O.A.C. Turnip in root cellar, O.A.C. T. D. J., Guelph. 



Nothrus excisus Banks. Under bark of Austria Pine and Norway Spruce 

 T. D. J., O.A.C, Guelph. 



Orihatella pallida, Banks. Under bark of Hard Maple, Norway Spruce, 

 Apple, Crab Apple. T. D. J., Guelph. 



Hoploderma granulata, Banks. Harrington, Ottawa. 



Orihatella formosa, Banks. Under bark of Catalpa, Norway Spruce, Lom- 

 bardy Poplar, Mountain Ash. T. D. J., Guelph. 



Ercm.aeiis pilosus, Banks. Under bark of Catalpa, Buckthorn, Balsam, Cut- 

 leaved Alder, Austria Pine, Mountain Ash. T. D. J., Guelph. 



Galumna affinis, Banks. Under board on College campus. T. I). J., Guelph. 



Galumna- depressa, Banks. On turnip and mangel, in O.A.C. root cellar. 

 T. D. J., Guelph. 



Orihata depressa, Banks. On mangel in O.A.C. root cellar. T. D. J., Guelph. 



Galumna hirsuta. Banks. Under bark of walnut. T. D. J., Guelph. 



Galumna sp. Under Lecanium scale. T. D. J., Guelph. 



Oribata sp. In cavities in stone. T. D. J., Guelph. 



Nothrus sp. Under bark of Soft Maple. T. D. J., Guelph. 



Orihata sp. On large fungus gall of grape. T. D. J., Niagara Falls. 



Pelops terminalis. Under bark of Ironwood. T. D. J., Guelph. 



Notaspis Burrowshi, Nuch. Western Ontario. T. D. J. 



Notaspis Canadensis, Banks. W. H. Harringto^i, Ottawa. 



Galumna sylvicola. Among fallen leaves in the forest. T. D. J., Guelph. 



Liacarus panulus. From moss on a stump. T. D. J., Guelph. 



Orihata Canadensis. Under bark of Ironwood. T. D. J., Guelph. 



Orihata perolota. In corn stubble. T. D. J., Guelph. 



Orihata neosota. From decayed leaves. T. D. J., Guelph. 



Cymheremaeus parvula. Under bark of Ironwood. T. D. J., Guelph. 



Family Tyroglyphid.ij. 



We have found ten species in our fauna. They are great destroyers of pro- 

 perty, for, although very minute in size, their enormous numbers make up for 

 their minuteness. The list of species tabulated below will give some idea of the 

 varied habits and habitat of this family. The hypopol stage is a resting one, and 

 at this period in their life history they often attach themselves to other animals, 

 but as the mites do no feeding at this time they cannot be called true parasites. In 

 this stage their chief object is to migrate to new feeding grounds. They are usually 

 pale coloured or slightly tinted with pink, with soft bodies and prominent cl^eylate 

 mandibles. There are no eyes and no special breathing organs. 



Tyroghjpliv^ longior, Germans. In all parts of houses. On cheese in cheese 

 factories, barley seed, whole wheat, turnip and mangel in O.A.C. root cellar; bulb 

 of Gladiolus; under Oyster-shell scale. T. D. J., Guelph. 



