94 THE CANADIAN ENTOMOLOGIST. 



surprised to see numerous small black mites running in and out of the 

 scales, and which no doubt prey upon the eggs of the Scale Insect, and 

 probably prevents their increase. Since then I have been enabled to ex- 

 amine them with a more powerful microscope, and I think they are entirely 

 new to science. As far as I can find out, they belong to the family 

 Oribatidae Nicolet, and resemble very much Packard's Nothrus ovivonis. 

 I submit the following brief description : 



Oribates ! aspidioti, n. sp. 



Elongated, flattened, narrowing towards head, dark reddish-brown 

 color ; abdomen pubescent, with two oval capitate processes, the first in 

 centre just back of thorax, the second just below middle of abdomen, 

 and both striate ; outer edge slightly serrate ; four legs, stout, and with 

 but one claw curved inwards, with three or four basal hairs. Length 

 about .02 inch. 



It is easily distinguished by the two oval processes. 



ON A NEW SPECIES OF POLIA. 



BY A. R. GROTE, A. M., 



Director of the Museum, Buffalo Society Natural Sciences. 



In the collection before me are the following species referred to Folia, 

 but in the absence of a series of the European forms I am not clear that 

 they are finally to be left in this genus. I have separated under the name 

 of Pachypolia atricomis a stout and shaggy species, taken by my friend, 

 Mr. Westcott, which has strongly pectinated antennae, a character not 

 accorded by Lederer to the European species, but one which is only 

 doubtfully of generic value. To distinguish these species from Hadena is 

 certainly difficult. They have less prominent, almost obsolete, tuftings, 

 and are usually gray in color with admixture of yellowish (pallifera) or 

 blackish (perquiritata ?, acutissima), or even brown (mcdialis), and again 

 one (diffusilis) is bluish gray, darker than Apatela americana and 

 approaching in tint to Lithophanc capax. 



