166 THE CANADIAN ENTOMOLOGIST. 



nearly parallel until just before the anterior margin where they converge 

 slightly, anterior margin very obtusely angled. Mandibles about half 

 the length of cephalothorax, finger with a small and weak apophysis. 

 No eyes. Cephalothorax smooth. Palpi very long ; the basal joint 

 narrower than usual ; second joint slender, as long as mandibles, a very 

 small, conical projection on outer side near distal end : third joint 

 (femur) slender, nearly as long as cephalothorax and mandibles together, 

 not pedicellate, gradually growing thicker from the base ; fourth joint a little 

 shorter than the third, very long pedicellate, pedicel almost one-third the 

 length of the joint, gradually growing thicker, both sides convex, the 

 outer more convex toward the distal end, the inner more convex toward 

 basal end, broader than femur ; hand quite long pedicellate, oblong oval, 

 not very broad ; fingers much longer than hand, curved toward the tip, 

 with a great many very fine teeth ; inner side of femur and inner side of 

 hand and base of fingers granulated. Body and appendages with simple 

 hairs. Abdomen wider than cephalothorax, widest behind the middle, 

 not very long ; hind legs long, reaching much behind the abdomen, other 

 legs a little longer than usual. California, Dr. Cooper Curtice. 



Olpiuvi, Koch. 



This genus is related to Atemnus, but has distinct eyes. It has not 

 been recorded from U. S. A species from the District of Columbia may 

 be called 



OipiujH rufulum, nov. sp. 



Length, 2.5 mm. Colour, cephalothorax and palpi red, dorsal scutae 

 yellowish, legs white, venter yellowish. Palpi slightly longer than the 

 body, second joint with a small obtuse projection behind ; third joint 

 (femur) pedicellate, about as long as cephalothorax, nearly cylindrical ; 

 fourth joint shorter, long pedicellate, both sides convex, inner side more 

 convex toward base \ hand pedicellate, nearly as long as fourth joint, not 

 very broad, tapering slightly toward base of fingers ; fingers curved, as 

 long as hand ; femur and part of hand finely granulate. Cephalothorax 

 smooth, one and one-half times as long as broad, sides nearly parallel, 

 slightly contracted in front of eyes, anterior margin a little convex ; eyes 

 close together, anterior eye about its diameter from anterior margin ; 

 madibles not one-half the length of cephalothorax, apophysis slender. 

 Abodmen about one and three-fourths the length of cephalothorax, not 

 much wider, widest in middle ;■ fourth pair of legs about reaching end of 

 abdomen. Body and appendages with long simple hairs. 



Under a large stone, Washington, D. C, March. 



