DRAC0TETT1X.— COLPOLOPHA. 227 



alcohol, differ from the three others from California in the absence of the transverse 

 depression in the frontal costa described in connection with D. monstrosus. It is 

 barely possible that they represent a fourth species of the genus. They also show 

 some other slight modifications from the characters ascribed to both the present species 

 and to D. monstrosus. As B. californicus occurs in the country adjacent to the 

 Mexican frontier, it is included here. 



[3. Dracotettix plutonius, Bruner. (Draconotus plutonius, Tab. III. figg. 5, 

 5 a, cj .) 

 Dracotettix plutonius, Bruner, N. Am. Fauna, vii. pp. 267, 268 (1893) l ; Scudd. Cat. Orthopt. 



U.S. p. 45 (1900) \ 



Hob. North America, Death Valley and Panamint Valley, California (A. Koebele 1 ). 



This is the smallest of the three species, and, on account of its restriction to regions 

 of peculiar characteristics, may not reach south of the Mexican border. 



COLPOLOPHA, St&l. 



Colpolopha, St&l, Orthopt. Nov. (Ofv. Vet.-Ak. Forh. 1873, no. 4) p. 52 ; Recens. Orthopt. i. 

 pp. 28, 45 (1873) ; Syst. Acrid, i. p. 14 (1878); Pict. et Sauss. Cat. Acrid, i. p. 8 (1887). 



This is still another tropical South-American genus representatives of which enter 

 our region. It contains at least half a dozen recognized species, three of which have 

 been taken in Central America. These, with, an additional one, are separable by the 

 following table. All of them are dull-coloured (of various shades of brown or dead 

 leaf-colour), and they may be found among the fallen leaves in and about the edges of 

 tropical forests, from near sea-level to a considerable altitude above the sea. They 

 enjoy a rather wide distribution, some of them occurring from Paraguay and Peru to 

 Guatemala. 



Synopsis of the Species of Colpolopha. 



A 1 . Sulcus of the frontal costa not attaining the vertex. Tegmina and wings 

 slightly shorter than the abdomen, the former with the apex obliquely 



excised. Lateral cariose of pronotum strongly dentate 1. latipennis, Stal. 



A 2 . Sulcus of the frontal costa continued to the apex of the fastigium. 

 Tegmina and wings variable, complete or abbreviate, the apex of the 

 former excised or acuminate. Lateral carina? of pronotum bluntly 

 toothed, crenulate or smooth. 

 b\ Rostrum of the vertex angulate. Crest straight, but little or not at 

 all elevated behind. Tegmina and wings conspicuously surpassing 

 the apex of both the abdomen and hind femora, their apex sinuately 

 truncate. 

 c 1 . Wings at base pale blue, smoky hyaline beyond ....... 2. obsoleta, Serville. 



c 2 . Wings at base pale yellowish, the radial area and posterior margin 



infuscated 3. sinuata, Stal. 



2Gg2 



