102 PROCEEDINGS OP THE AMERICAN ACADEMY. 



The following species have not been seen by me. 



56. Ceuthophilus scabripes. 



Phalangopsis scabripes Hald., Proc. Acad. Nat. Sc, Philad., vi. 

 364 (1853) ; Walk., Cat. Derm. Salt. Brit. Mus., i. 116 (1869). 



Rhaphidophora scabripes Scudd., Proc. Bost. Soc. Nat. Hist., viii. 7 

 (1861). 



Ceuthophilus scabripes Scudd., Bost. Journ. Nat. Hist., vii. 436 

 (1862) ; Walk., Cat. Derm. Salt. Brit. Mus., i. 201 (1869). 



I cannot find any species which corresponds sufficiently with Halde- 

 man's description to apply this name to it. When we are better 

 acquainted with the forms occurring in the South, west of the 

 Alleghanies, we may be able accurately to fix it. It was described 

 from Selma, Alabama. 



57. Ceuthophilus utahensis. 



Ceuthophilus utahensis Thom., Proc. Dav. Acad. Nat. Sc, i. 264, 

 pi. 36, fig. 8 (1876). 



None of the species I have seen can be referred to this. It seems to 

 resemble G. valgus. It comes from Mt. Nebo, Utah. (See Appendix.) 



Note. — Ceuthophilus cnhaensis Walk. {Locusta Rliaphidophora cuhensis De 

 Haan), of Cuba, is a Plierterus, according to Bolivar and Brunner, belonging 

 to the Anostostomata. 



PHRIXOCNEMIS (^bpt^d?, Kv-qiiij), Gen. nov. 



Closely allied to Ceuthophilus, and having its general aspect, though 

 the legs are stouter than is commonly the case in that genus. Head 

 rather large, the vertex well rounded and deflexed, barely interrupted 

 from continuation into the frontal costa by the confluence of the 

 antennal scrobes. Eyes small, subpyriform, as large as the antennal 

 scrobes. Antennse as in Ceuthophilus. Palpi very small, the ante- 

 penultimate joint but little shorter than those on either side of it. 

 Pronotum sub-semicylindrical, the inferior margin of the descending 

 lateral lobes arcuate, the anterior and posterior angles equally or 

 almost equally rounded ; those of the meso- and metanotum similarly 

 rounded without the posterior obli(jue truncation common in Ceutho- 

 philus, or present in the slightest degree. Anterior coxjb compressed 

 and elevated to form a median denticle. Less short and rather stout. 

 Fore femora stout, or at least broad by compression. Middle femora 

 unarmed apically, or, when armed, only by an inferior and brief spine 



