﻿10 JouRNAi, New York Ent. Soc. [Vol. hi. 



Family OBISIID.^^:. 



Sub-family oi.i'iiN.i-:. 

 Olpium Kocli. 



This genus and the next form the transition from the previous 

 family to the true Obisiidie. 



Olpium obscurum Bks.—<Z?i\\. Entom., March, 1893. 



Besides the type, I have one specimen from Punta (lorda, 

 Fla., (Mrs. Slosson). 



Atemnus Cancsta. 



Differs from Olpium principally in lacking eyes, and in having 

 the trochantins visible on all the legs. 



Atemnus elongatus, sp. nov. 



I.engtli, 3 mm. Ceplialothorax and legs yellowish, abdomen brownish, palpi 

 red-brown. Cephaiothorax smooth, one and one-half times as long as broad, 

 narrowed in front, no trace of eyes; mandibles about one-third the length of cepha- 

 lothorax, with a long slender, and simple stylet; abdomen not broader than cepha- 

 jothorax and fiillv twice as long. Palpi heavy, but not long; trochanter swollen 

 behind, convex in front; femur pedicellate, shorter than ceplialothorax, about twii-e 

 as long as bi'oail, broatlest near base; tibia about as long and as broad as femur, 

 pedicellate, outer margin moderately, inner margin quite strongly convex; claw 

 about as long as ceplialothorax plus mandibles, much broader than tibia, broadest 

 near base and tapering to the fingers, which are stout, curved, and plainly shorter 

 ]-han the hand. Legs short and stout, trochantins distinct on all pairs, liody and 

 appendages with scattered simple hairs. One specimen with almost black ceplialo- 

 thorax and palpi does not differ otherwise from typical specimens. 



Beaten from dead hickory wood in April, near St. Lucie Riv., 

 Indian River, Florida, by Mr. Hubbard ; also at Sand Point, and 

 Enterprise, Florida, Punta Gorda, Fla., (Mrs. Slosson). A young- 

 specimen taken by myself at Runnymede, Fla., may belong to this 

 species ; the hand is more slender and the fingers longer, and there 

 is a more prominent projection on the posterior margin of the 

 trochanter. 



Sub-family obisiin.k. 



Tribe Ideobisini. 

 Ideobisium JUilum. 



Cephalothora.x smooth, without transverse sutures, nearly as 

 broad in front as behind, four distinct eyes ; mandibles large, with 

 a distinct stylet ; abdomen moderately elongate, scutK entire ; 

 palpi moderate, fingers curved ; bod)- with simple hairs. We have 

 two species : 



