:HK> THE CANADIAN ENTOMOLOGIST. 



about as long as tibia, but little broader, broadest near base, fingers not 

 near as long as hand, quite strongly curved, and darker than hand, all 

 parts with fine simple hairs, about one-half the width of the joints, except 

 some at the base of the fingers. Abdomen moderately broad, flat, the 

 sett* not distinctly divided, but apparently some of the posterior ones are 

 divided. 



Length, 2.5 mm. 



Punta Gorda, Florida (Mrs. A. T. Slosson). 



Ideobisium tibiale, n. sp. — Cephalothorax and palpi red-brown, rest 

 of body and legs pale. Cephalothorax a little longer than broad, rather 

 broader behind than in front, surface smooth, with a few long bristles, 

 anterior margin rather prominent in the middle, two eyes each side, about 

 one-half their diameter apart ; mandibles large, with a few long hairs, 

 stylet slender, trifid at tip. Palpi quite long; trochanter nearly twice as 

 long as broad, sides subparallel ; femur plainly longer than the cephalo- 

 thorax, enlarging from base to tip ; tibia distinctly shorter than femur, 

 long pedicellate, but one and a-fourth broader than femur, inner side but 

 little swollen ; hand as long as femur, not twice as broad as tibia, but little 

 swollen, mostly on inner side, fingers plainly shorter than hand, stout and 

 but little curved ; all with long simple hairs. Abdomen not very 

 elongate, scuta smooth, with a few simple hairs ; femora i and ii divided, 

 basal part longer than apical part ; femora iii and iv showing trochantins 

 distinct. 



Length, 4.2 mm. 



From Florissant, Colo., 8,000 feet. 



Ideobisium magnum, n. sp. — Cephalothorax and palpi dark red- 

 brown, dorsal scutse brown, rest of body and legs pale. Cephalothorax 

 smooth, about as broad as long, a rounded tubercle in middle of front 

 margin, eyes large, less than one-half their diameter apart, a few pale spots 

 each side on the posterior part of the cephalothorax ; mandibles large, 

 with a few long hairs, stylet slender, with an outer branch toward tip, 

 the latter bifid. Trochanter of palpus concave behind ; femur sub- 

 pedicellate, hardly as long as the cephalothorax plus the mandibles, as 

 broad at middle as at tip ; tibia plainly shorter than femur, strongly 

 pedicellate, inner side suddenly swollen and then straight ; hand large, as 

 long as tibia, and about twice as broad, tapering to the stout fingers, which 

 are plainly a little shorter than the hand ; all parts with fine simple hairs. 



