THE CANADIAN ENTOMOLOGIST. 205 



THE-PHALANGIN;E OF THE UNITED STATES. 



BY NATHAN BANKS, SEA CLIFF, N. Y. 



The family Phalangidte is readily separable from the other families of 

 Phalangida by having but one simple (not compound) claw at the end of 

 each tarsus and having a claw at the end of palpus. The last (fifth) joint 

 of palpus is nearly always longer than the next to last ; an exception is 

 the male of Protolophus. Our species have been descr ibed by Say (Com- 

 plete Writings), Wood (Bull. Essex Inst, 1868), Weed (Bull. 111. State 

 Lab. Nat. Hist, 1889, anQl various articles in Am. Nat., 1887-1893), and 

 Banks (Trans. Ent. Soc, Wash., 1891). The genera known to me may be 

 separated by the following key : — 



( Body with two rows of large tubercles, male with fifth 

 palpal joint shorter than fourth, female with third 



1 -j palpal joint forked Protolophus. 



J Body without large tubercles, fifth palpal joint always longer than 

 ^ the fourth : 2 



( A group of spines on the front margin of the cephalothorax, eye- 

 tubercle with two rows of prominent spines 7 



( Not with both of above characters 3 



5 Three large spines on the second joint of palpus, eyes ex- 

 ceedingly large Caddo. 

 Without such spines, eyes normal 4 



/ Femur I., much shorter than body, in the females not as long as 



) width of body 5 



\ Femur I., longer, or in some females but little shorter than 



V body Liobunicm. 



t Metatarsus I., without false articulations, femora and tibiae I. and 



J III. much thickened 6 



5' j At least one false articulation in metatarsus I., femora 



2 



)• 



V and tibiae normal Leptobunus. 



\ 



, Eye tubercle spinose Globipes. 



1 Eye tubercle smooth Eiirybanus. 



( Second joint of palpus with prominent spines 8 



7 ( Second joint of palpus without prominent spines 9 



/ No false articulation in metatarsus I., eye tubercle more 



) remote from the anterior margin Lacinius. 



 At least one false articulation in metatarsus I., eye 



tubercle farther forward Oligolophus. 



Femora as narrow as, or narrower than eye-tubercle, fifth joint of 



palpus longer than the third and fourth together 10 



9') Femora wider than eye-tubercle, fifth joint of palpus not 



longer than the third and fourth together Homolophus 



