PSILOTETTIX.— PH^OPAEIA. 277 



Bab. Mexico, " Sierra Laguna" (Gustav Msen, in Mus. Calif. Acad. Nat. Sciences). 



The only mature example of this insect at hand was preserved in spirits, hence it is 

 difficult to positively state as to the tint of the living insect or even of ordinary 

 cabinet-specimens. The locality " Sierra Laguna " is not given in the reference-books 

 at hand and is only surmised to be in Mexico, since the specimen was contained among 

 others taken in the States of Jalisco, Sinaloa, and Sonora. 



ARISTIA, Stfil. 



Aristia, Stal, Bihang till K. Svensk. Vet.-Akad. Handl. iv. no. 5, p. 54 (1876) ; v. no. 4, p. 21 

 (1878) ; Giglio-Tos, Boll. Mus. Zool. Anat. Comp. Torino, xiii. p. 46 (1898). 



The present genus is introduced here on the strength of a single species from Costa 

 Eica that appears to be somewhat aberrant in its general structure and appearance, as 

 will be seen from an examination of the description of A. depressicornis which follows. 

 Apart from this species, however, Aristia should reach Central America in one or two 

 other forms which belong to northern South America, where several representatives of 

 the genus are not at all uncommon. 



l. Aristia depressicornis, sp. n. 



The insect here described, although still in the nymph state, is sufficiently developed to prove that it is 

 distinct from, all of the described forms. ' The wings and tegmina are sufficiently large to indicate that 

 the imago is nearly or quite macropterous. The structure of its antennae is such as to show that they 

 are ensiform or subensiform, or at least that these organs have the basal joints strongly depressed in the 

 imago. The sides of the head, pronotum, pleura, and abdomen are piceous ; the face, fastigium, occiput, 

 disc of pronotum, tegmina, and dorsum of abdomen ferruginous. The disc of the pronotum is provided 

 with a number of small black tubercles, in addition to the four large ones near the front edge of the 

 anterior lobe. The front margin is strongly sinuose or emarginate. Head high, but not wider than the 

 front edge of pronotum, the occiput somewhat ascending, nearly as long as the pronotum, viewed from 

 the side rather strongly oblique, the frontal costa strongly produced between the base of the antennae. 

 Hind tibise provided with a rather prominent apical spine on the outer margin. Face, sides of head, and 

 pronotum rugosely punctate and wrinkled. 



Hab. Costa Eiga, Juan Vinas (L. Bruner). 

 A single immature specimen found in March. 



PH^OPARIA, Stfil. 



PhcEoparia, Stal, Recens. Orthopt. i. pp. 35, 56 (1873) ; Syst. Acrid, i. pp. 21, 57 (1878) ; 

 Giglio-Tos, Boll. Mus. Zool. Anat. Comp. Torino, xiii. no. 311, p. 46 (1898). 

 The various representatives of the present genus are distributed over the northern 

 portion of South America and the southern countries of Central America. They may! 

 be found among the fallen leaves and the lower shrubs and herbage growing in and at 

 the margins of forests and groves. At least four species belong to, or may be looked 



