1904.] NATURAL SCIENCES OF PHILADELPHIA, 85 



adult individuals showing the range of variation in the length of the 

 femora to be 4.5 millimeters. 



Genus GEAEFFEA Stil. 

 1875. Graejfea Stal, Recensio Orthopterorum, III, pp. 40, 85. 

 Type. — Lopaphus coccophagus Westwood ( = Alopus cocophages 

 Newport). 



GraefFea cocophages (Newport). 



1841. Alopus cocophages Newport, Philosoph. Trans. Royal See. London, 

 1844, Pt. I, p. 288, PI. XIV, fig. 4. [Navigator's Island.] 



Three specimens; one male, two females; Savaii, Samoan Islands. 

 (Sir Charles Ehot.) [U. S. N. M.] 



This species has also been recorded from the Tonga group, the Fee- 

 jees, and Rotuma near the latter group. The Loyally Islands possess 

 another species of the genus, lifuensis Sharp, and possibly fulvescens 

 Saussure, from the Marquesas, may be distinct, as the cerci of the 

 female are subspatulate instead of acuminate or terete, as in the other 

 two forms of the genus. 



Genus ARRHID.a:US Stil. 



1875. Arrhidceus Stal, Bihang till K. Svenska Vet.-Akad. Handl., Bd. 2, 

 No. 17, p. 15. 



Type. — Necroscia styxius Westwood. 



This genus contains a number of Oriental and Papuan species, a 

 list of which may prove of service: 



Arrhidceus styxius (Westwood). Philippines. 



Arrhidceus palinurus (Westwood). Philippines. 



Arrhidceus nigricornis Stal. Philippines. 



Arrhidceus stali Kirby. Albay, N. E. Luzon, Philippines. 



Arrhidceus capita (Westwood). Sarawak, Borneo. 



Arrhidceus longiceps (Bates). Kaioa Island, near Batchian. 



Arrhidceus apalamnus n, sp. Obi. 



Arrhidceus roseus (Stoll). Amboina and Ceram. 



Arrhidceus cephalotes (Bates). New Guinea. 



? Arrhidceus vittatus (Serville). Java. 

 Arrhidaeus apalamnus '■'- n. sp. 



Types.— c? and ? ; Island of Obi, Moluccas. [A. N. S. Phila., 

 presented by Mr. Morgan Hebard.] 



Near longiceps Bates,^^ but differing in the longer pronotum, shorter 

 tegmina and wings, distribution of the femoral spines and coloration 



32 airakafivogj i.e., helpless. 



33 Trans. Linn. Soc. London, XXV, p. 350, PI. XLV, fig. 6. 



