chamberlin: new spiders of the family aviculariidae. 59 



This is a considerably smaller species than L. diffcrens. Tibia + 

 patella I equals the sum of the corresponding joints of leg IV and 

 exceeds the length of the cephalothorax whereas in 1j. diffcrens tibia + 

 patella I is much longer than tibia + patella IV and decidedly exceeds 

 in length the cephalothorax which in turn is a little longer than tibia + 

 patella IV. The eyes of the anterior row are clearly closer together. 

 The stridulating spines of the coxa are smaller and more numerous. 



Phormictopus cubensis, sp. nov. 



Type. — M. C. Z. 79. 9- Cuba: near Havana? Felipe Poey. 



Parafi/pc.~M. C. Z. S2. 9. Cuba: 1864. Mrs. Brown. 



Integument of cephalothorax and legs very dark dull chestnut 

 to black. Pubescence brown with grey intermixed on legs as usual. 

 Bristles rust-brown. The fringe of light hairs across ends of joints 

 above very narrow. The usual longitudinal bristle-free streaks on 

 joints of legs above. 



Cephalothorax with pars cephalica low as usual. In profile the 

 pars cephalica is seen to rise convexly back of eye-tubercle, not de- 

 scending immediately from the tubercle as in P. cancerides. Cephalo- 

 thorax longer than either tibia + patella I or tibia + patella IV. 



Anterior row of eyes rather weakly procurved in dorsal view; a 

 line tangent to anterior edges of median eyes passes through anterior 

 fourth of lateral eyes. Anterior median eyes with diameter but 

 slightly smaller than that of the lateral (at least 9: 10); their radius 

 or slightly more from each other and from the lateral eyes. Posterior 

 lateral eyes equal in diameter to the anterior laterals from which they 

 are separated by a distance equal to a radius. Posterior median eyes 

 a little smaller than the lateral to which it is very close, or practically 

 equal in long diameter. A line tangent to caudal edges of two poste- 

 rior eyes on each side intersecting the anterior median eye of opposite 

 side, the median eye not being situated so far caudad relatively as in 

 P. cancerides. 



Coxa I on anterior surface above suture with bacilliform plumose 

 stridulating spines numerous and in a number of close and irregular 

 series. Femur I on anterior side with a conspicuous scopula of 

 densely arranged plumose hairs. Palpus with corresponding stridu- 

 lating bristles on coxa and trochanter and also with plumose hairs on 

 ectal surface of femur at base. 



Metatarsi I and II scopulate to base; metatarsus III scopulate 



