(36 TERTIARY INSECTS OF NORTH AMERICA. 



larger than the cephalothorax, ovate, largest in the middle, tapering almost 

 equally in either direction, the apex slightly angled, the surface very sparsely 

 clothed with long, extremely delicate, tapering hairs. Legs moderately 

 long, delicately tapering, sparsely furnished with scarcely divergent spines 

 about as long as the diameter of the joint on which they are seated. 



Female. The single specimen is rather poorly preserved, hardly admit- 

 ting of description. It is stouter than the male. The cephalothorax appears 

 to be roundish quadrate, broadest behind, scarcely longer than broad, the 

 hind margin very broadly, the front somewhat narrowly, convex. The 

 abdomen is somewhat larger than the cephalothorax, but only a little longer, 

 broadest anteriorly, pretty well rounded behind. Legs much as in the 

 male, but with slight traces of spinos. 



Length of body, $ 5.4 mm , ? 4.7f> miu ; cephalothorax, <? 2.65 mra , ? 2.25 mm ; 

 abdomen, $ 2.75 mm , $ 2.5"""; breadth of cephalothorax, <? 1.75 mm , $ 2.15 mm ; 

 abdomen, J 1.6""", ? 2 mm ; extent of palpi beyond cephalothorax, <? 1.35 mm ; 

 length of palpal swelling, <? 0.75""" ; length of first pair of legs, f 7""", 

 '6.2 mm ; femora, 2"' m , ? 1.5"""; tibia?, ,? 2.25 mm , ? 2.6"""; tarsi, j 2.75""", , 

 2.1 mm ; second pair of legs, <? 6.65 mm , ? 6.1 mm ; femora, $ 2 mm , ? 1.6 mm ; tibi.-'r, 

 $ 2.25 mm , 2 2.25 mm ; tarsi, .f 2.4 mm , $ 2.25 mm ; third pair of legs, <? 5.1 5 mm ; 

 femora, ,f 1.25 mm ; tibiae, 1.9 mm ; tarsi, 3 2" 1 '" ; fourth pair of legs, <? 6.9 mui , 

 ? 4.6 mm ; femora, <? 2 mm , ? 0.85 mra (!) ; tibiae, $ 2 inm , $ 1.75 mm (?) ; tarsi, ' 

 2.9 mm , $ 2 mm . 



This species is considerably smaller than any of the others, and is 

 further distinguished from them by the near equality in size of the cephalo- 

 thorax and abdomen It resembles a little C. microphthalma of the Baltic 

 amber, and is of the same size as it, but the cephalic portion of the cephalo- 

 thorax is not distinguished by a constriction as there, and our species has 

 somewhat stouter legs. 



Florissant, Two <?, Nos. 199, 5507 and 5910; one ?, No. 9624. 



ANYPHJENA Sundevall. 



To this genus I refer a single species, manifestly belonging in this 

 vicinity, and approaching it, so far as may be judged by the general appear- 

 ance of the specimen, as closely as any other form. Traces of the eyes can 

 be seen in this specimen, and if correctly interpreted their arrangement is 

 not exactly that of Anyphfena, although it is not very different from that 



