1918.] NATURAL SCIENCES OF PHILADELPHIA. 199 



Homorocoryphus cocanus (Bolivar). 



1881. Conocephalus cocanus Bolivar, Anale.s Soc. Espafi. Hist. Nat., X, p. 

 497. [Coca, Ecuador.] 



Para. (C. F. Baker.) Three males, two females. 



Para. (Thayer Expedition.) One female. [M. C. Z.] 



These specimens have been compared with a male from Chan- 

 chamayo, Peru, in the collection of the Academy, and found to be 

 inseparable. 



The species was recorded from Cayenne by Redtenbacher. 



Homorocoryphus brunneri (Redtenbacher). 



1891. Conocephalus brunneri Redtenbacher, Verhandl. k.-k. zool.-botan. 

 Gesell. Wien, XLI, pp. 385, 423. [Theresopolis, Brazil; Upper Amazons; 

 Buenos Aires and Rosario, Argentina; "Yalapa."] 



Igarape-assu. One female. 



Listroscelinse. 



Phlugis marginata (Redtenbacher). 



1891. Thysdrus viarginalus Redtenbacher, Verhandl. k.-k. zool.-botan. 

 Gesell. Wien, XLI, pp. 534, 537. [Upper Amazonia.] 



•Para. (C. F. Baker.) One female. 



This specimen, the first known from an exact locality, fully agrees 

 with the original description, except that the caudal femora are 

 slightly shorter. 

 Phlugis chelifera n. sp. (PL II, figs. 41-43.) 



Closely related to P. abnorfms (Redtenbacher),^^ from Retalulen,'**' 

 but differing in the somewhat smaller size; in the male cerci being 

 quite short, not a quarter as long as the subgenital plate; in the 

 internal projection of the paired processes of the disto-dorsal 

 abdominal segment of the male being flattened, vertical, clecurved 

 plates, instead of spiniform; and in the subgenital plate of the same 

 sex having the expanded distal section proportionately shorter and 

 more sharply expanded, the proximal angle of the dorsal margin of 

 the expansion slightly recurved acute, and in the vertical margin 

 of the same section, when seen from the side, being distinctly indented 

 proximad. 



Type: cf ; Igarape-assii, State of Para, Brazil. (H. S. Parish.) 

 [Acad. Nat. Sci. Phila., Type no. 5321.] 



Size medium (for the genus) : form subcompressed. Head well 

 seated in the pronotum: occiput and interocular space moderately 



39 Verhandl. k.-k. zool.-botan. Gesell. Wien, XLI, pp. 534, 538, pi. IV, fig. 95. 



*° This is apparently an error of transcription for Retahluleu, western Guate- 

 mala. Karny was apparently unable to place the locahty quoted, and we also 

 have been unable to secure any information concerning it. We feel confident, 

 however, that "Retalulen" is an error for Retahluleu. 



