THE CANADIAN ENTOMOLOGIST. 175 



in front as behind, broadest in middle, sides evenly convex, each 

 posterior angle prolonged into a spinelike process tipped with a long 

 stout bristle. They are slightly divergent, and between them are two 

 long stout bristles arising f.om the hind edge of the body. The anterior 

 margin of the body is rounded, and prominent in the middle, and bears 

 two submedian bristles. The dorsal surface of the body is scantily 

 clothed with short curved bristles, and there is a row of bristles along 

 each side-margin. There are six shields on the dorsum ; in front is a 

 large trapezoidal piece containing a paler central figure, from the anterior 

 angle of this trapezoid a curved line extends backward and reaches the 

 side-margin before the middle. Behind this large piece are four 

 submedian pieces, the anterior pair longer than the posterior pair, and 

 fully their diameter apart. Behind there is a median semicircular piece, 

 the convexity behind. The legs are all shorter than the body and with 

 many bristles. Length, r.5 mm. 



Specimens from Olympia, Washington, and from St. Croix Falls, 

 Wisconsin. A remarkable and interesting species, evidently confined to 

 northern localities. 



Hoploderma granulata, n. sp. — Pale yellowish brown. Dorsum as 

 high as broad, evenly convex above; about one and two-thirds times as long 

 as broad, broadly rounded in front and behind, broadest in middle, its 

 surface quite coarsely but evenly granulate, and provided with about 

 twenty erect bristles, mostly situate around the margin, nearly all rather 

 thick and blunt-pointed. Cephalothorax about once and one third longer 

 than broad, broadly rounded in front, finely granulate and with two long 

 superior bristles. Ventral openings subequal in size, each about as 

 broad as long ; the anal one slightly indented behind ; setae quite long 

 arcuate. Length, .6 mm. 



Three specimens from Ottawa, Canada (Harrington). Distinct by 

 elongate form and granulate dorsum. 



Gyvmobates, n. gen. — Tarsi with three equal claws ; abdomen 

 provided with wings, with an extension forward over the basal part of the 

 cephalothorax. Tarsi broad at tips. Setre short, capitate. The coxa' 

 marginal. Sternum divided by two transverse lines. Ventral openings 

 far apart. Type G. glaber. 



Differs from Oribates in the tarsi being broad at tip, and the 

 abdomen extending over the cephalothorax. 



