In the following pages I have included descriptions of a few new genera and species of mites that have been in my possession for some time. Several of the genera are for the first time recorded in America. A note is added on two species ofTrichotorsus. Of the two new genera, theLiroaspisis a very remarkable form, and funds its nearest allies in certain tropical species.Trombidum granulatum, n. sp.– Bright blood red, the legs are clothed with scale-like hairs, those on the basal joints are

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... elsewhere they are red, except on the apical joint of leg I., which is mostly white; the palpi and mouth-parts are mostly white, but reddish toward the trip. The body is covered above with rounded elevated granules, subequal in size and height; on the under side they are more scarce and there are some short red hairs. The body is hardly twice as long as broad, broadest at humeri, slightly constricted over base of the third legs, and broadly rounded behind; the dorsal outline at juncture of head and abdomen shows very little depression; on the cephalic part there is a median grove, and each side are two sessile eyes.