THE CANADIAN ENTOMOLOGIST. 65 



acuminatus ; hairs simple, the trochanter is less gibbose behind, the 

 femur a little more slender ; the tibia enlarges quite suddenly on the 

 internal margin, but is then more parallel with the external margin than 

 in either C. acuminatus or C. pallipes ; the hand is more slender than in 

 C. acuminatus, and the sides are quite nearly parallel ; the fingers stout 

 and much shorter than the hand. 



East Florida. Under bark of pine trees. Common. 



Chelanops grossus, n. sp. 



Length, <j? , 4.7 mm.; $ . 3.3 mm. Similar to C. oblo?igus, Say, but 

 very much larger. Palpi uniform dark red-brown ; anterior part of 

 cephalothorax similar but paler, beyond the suture yellowish ; dorsal 

 scutae, yellow-brown ; legs, pale. Body very long and narrow ; cephalo- 

 thorax shining, smooth ; palpi with long simple hairs. Palpi similar to C. 

 oblongus ; hand longer and the sides more parallel; the* tibia not so 

 much swollen on the inner side and thus more slender. 



Colorado. [Dr. C. F. Baker.] Apparently common. 



Olpium obscurum, n. sp. 



Length, 2 mm. Colour in life blackish, in alcohol the cephalothorax 

 and abdomen greenish with sides blackish, legs pale with a greenish 

 tinge, palpi brownish-yellow with a tinge of green, hands darkest. 

 Cephalothorax narrower in front than behind, anterior eyes about their 

 diameter from anterior margin, posterior eyes just behind anterior ones 

 and looking more dorsal ; stylet simple ; abdomen widest at about 

 seventh segment, quite long ; palpi shorter than abdomen ; trochanters 

 somewhat conical, sides convex ; femur not quite as long as cephalo- 

 thorax is broad at posterior margin, barely pedicellate ; sides almost 

 parallel, internal margin a little convex near base, then a little concave, 

 external margin almost straight ; tibia short, pedicellate, a little shorter 

 than femur and broader than that joint, both sides convex ; hand about 

 as long as tibia, barely pedicellate, sides but little convex ; fingers a little 

 shorter than hand and curved. 



East Florida. One specimen, swept from grass. 



Roncus, Koch. 



Allied to Chthonius, differs in having but one eye on each side of 

 cephalothorax. Not previously known from U. S. 



