THE CANADIAN ENTOMOLOGIST 307 



Dorsal scuta smooth, with a few simple hairs. Legs long, femora i and ii 

 divided beyond middle, tibia iv longer than the cephalothorax. 



Length, 6.5 mm. 



From Mt. Shasta, Calif. (Lembert). It is our largest species. 



Olpium frontalis, n. sp. — Pale yellowish-brown, palpi darker yellow- 

 brown, rest of body^and legs pale. Cephalothorax about one and a-fourth 

 times as long as broad, more than twice as broad behind as in front, 

 surface nearly smooth, with a few very short simple hairs, two distinct eyes 

 each side touching each other. Mandibles small ; stylet rather long, 

 simple, and with an out-turned tip. Trochanter of palpus convex in front, 

 concave behind ; femur not as long as cephalothorax, broadest beyond 

 middle, granulate in front ; tibia plainly shorter than femur, but plainly 

 broader, both sides rather evenly convex ; claw large and heavy, hand 

 about as long as femur and twice as broad, sides subparallel, but rather 

 broadest near the base, fingers stout, two-thirds of length of hand; all with 

 short simple hairs, except four long ones at base of fingers. Abdomen 

 elongate ; posterior scuta divided, with a few short simple hairs. Legs i 

 and ii divided in middle, trochanters distinct on hind legs. 



Length, 3.5 mm. 



Las Vegas, N. Mex. (Cockerell). 



Obisium transversum, n. sp. — Pale yellowish on the cephalothorax 

 and palpi, rest of body and the legs paler. Cephalothorax one and a-half 

 times as long as broad, surface smooth, slightly narrowed in front of eyes, 

 the front margin slightly convex ; behind the middle is a distinct trans- 

 verse furrow, with its ends slightly curving forward, two distinct eyes each 

 side ; mandibles large, more than one-half as long as the cephalothorax, 

 no stylet. Femur of palpus hardly as long as the cephalothorax, barely 

 broader in the middle ; tibia a little shorter than the femur, but broader, 

 outer side near base is slightly concave, inner side rather suddenly 

 swollen and then nearly straight ; claw as long as cephalothorax plus 

 mandibles, about twice as broad as femur, the hand very broad near base, 

 tapering each side to the fingers, which are stout, slightly curved and as 

 long as hand ; all with fine simple hairs, many of them very long. Legs 

 short, with simple hairs, anterior tips of coxae i and ii with a distinct tooth. 

 Abdomen ( $ ) about two and a half times as long as cephalothorax ; the 

 segments smooth. 



Length, 2 mm. 



From Pecos, New Mexico (Cockerell). 



