LICHENOCHRTTS.— PRISTES. 411 



longiora, subtus spinis 3 ; intermedia 4 ; postica 7-8. Tibiae posticse fusco-marmoratse, margine interno 

 spinis 11-12 armatis. Pectus fusco-maculatum. Abdominis segmenta subtus omnia macula magna 

 fusca. 

 $ . Cerci elongati, arcuati, compressi, supra fusco-marmorati, apice leviter tumido, rotundato ac minute acumi 



nato. Lamina infra-genitalis trigonali incisa, stylis teretibus sat longis instructa (subimago). 

 Long. corp. 31 ; femor. post. 21 millim. 



Hab. Mexico, Orizaba (Mus. Genavense). 



We have ventured to name this species, although known to us only by a nymph, on 

 account of its particular coloration. It seems to be nearest allied to L. hilaris, Brunn., 

 or to L. muticus, Brunn. 



The larva of another species before us, from Cordova, has the forehead maculated 

 with black and differs from the present insect in having four spines only on the 

 outer margin of the hind tibiae, and the anterior margin of these limbs furnished with 

 small tubercles. 



6. Lichenochrus muticus, Brunn. 



Lichenochrus muticus, Brunn. v. W. Monogr. der Pseudophyll. p. 131. 

 Hab. Panama, Chiriqui (coll. Dohm). 



Unknown to us. 



BRISILIS, Stal. 



Brisilis, Stal, Ofv. Vet.-Akad. Forh. xxx. 4, p. 46 (1873) ; Recens. Orthopt. 2, p. 62 ; Brunner v. 

 Wattenwyl, Monogr. der Pseudophyll. p. 132. 



1. Brisilis curvidens, Stal. 



Brisilis curvidens, Stal, Obs. Orthopt. (Bihang till Svenska Vet.-Akad. Handl.) iii. p. 39 (1875) y 

 Brunn. v. W. Monogr. der Pseudophyll. p. 133. 



Hab. Panama, Chiriqui. 



Unknown to us. 



PRISTES, Kedt. 

 Pristes, Redtenbacher, in Brunner v. WattenwyPs Monogr. der Pseudophyll. p. 135. 



l. Pristes tuberosus, Stal. 



Platyphyllum tuberosum, Stal, Obs. Orth. (Bihang till Svenska Vet.-Akad. Handl.) iii. p. 40 (1875). 

 Pristes tuberosus, Brunn. v. W. Monogr. der Pseudophyll. p. 135, t. 6. fig. 60; Griffini, Bollett. 

 dei Mus. di Zool. di Torino, xi. no. 232, p. 16, no. 234, fig. (<?) * (1896). 



Variat tibiis intermediis 1- vel 2-spinosis ; color fusco-griseas plus minus marmoratus ; ventris segmentis nigris. 

 cJ . Styli lamina? supra-analis in nostro individuo longissimi, valde pilosi, ultra medium leviter dilatati, apice 

 attenuati, obtusi vel subangulati, subtus in medio carina obliqua notati. 



* Dr. Griffini's figure is given to show a monstrosity with a very small atrophied hind leg. 



3og2 



