TELCOPHRYS.— GYMNOTETTIX. 21 



with the lateral carina of the face, as indicated in the accompanying figure. Hind femora shorter than 

 the abdomen, fairly stout, the upper carina? provided with a number of rather strong spines; metatarsi 

 with both margins denticulate above. Upper valves of the ovipositor more or less serrate, the lower ones 

 provided with two coarse, blunt teeth back of the strongly curved apex. Antenna? normal. 



The above-mentioned characters are based on an imperfect female specimen of 

 T. fusiformis from the collection of Samuel H. Scudder and on two very immature 

 alcoholic specimens belonging to the California Academy of Sciences. These latter, 

 which were obtained by Gustav Eisen at San Jose del Cabo, Lower California, are 

 doubtfully referred to a distinct species from the one described from the same region. 



1. Teicophrys fusiformis, sp. n. 



General colour in life presumably dull testaceous or olive-brown, with little variation in the form of lighter 

 or darker brown lines and dots. The body is largest at the metathorax, and tapers gently both anteriorly 

 and posteriorly, and is covered rather sparsely above with elevated points and ridges which range them- 

 selves into series that give the surface the appearance of being transversely wrinkled. These tubercles 

 are largest on the thorax, but most numerous on the abdomen. The eyes show alternate light and dark 

 streaks which are parallel to their anterior edges. There are also dark tips to the spines on the hind 

 femora and the valves of the ovipositor. 



Length of body ( $ ) 27 : of pronotum 2-5 ; of hind femora 12 millim. 



Hab. Lowee California, Cape St. Lucas (Palmer, in coll. Scudder) .] 



GYMNOTETTIX, gen. nov. 

 A single female specimen of this subfamily of locusts before me differs so much from 

 the characters given for Episactus and Eumastax that I have decided to place it in a 

 separate genus. The following differences are the most important, together with those 

 which are given in the above Table for separating the genera : — 



Sulcation of the vertex separated by a transverse carina from that of the frontal costa (Episactus), not so 

 separated (Gtymnotettix). Basal joint of hind tarsi serrate above on both margins {Gymnotettix), basal 

 joint of tarsi smooth {Eumastax). 



Body slender ; the pronotum small, truncate in front and slightly emarginate behind, the median carina 

 distinct, linear. Head a little wider than the front edge of the pronotum, the vertex somewhat produced 

 in advance of the eyes, where its lateral walls converge somewhat and continue as the lateral carinae of 

 the frontal costa. The latter about one-half as broad as the vertex between the eyes, deeply sulcate 

 throughout and of nearly uniform width. Eyes less prominent than in Eumastax, about three-fifths as 

 broad as long. Antennae with the basal and second joints less enlarged than in that genus, 1 1-jointed. 

 Hind femora about equalling the abdomen in length, comparatively heavy ; the hind tibiae irregularly 

 spined — only partially showing the alternation of long and short spines, — the basal tarsal joints strongly 

 toothed on both margins above. Ovipositor with the valves blunt, toothless, the lower pair considerably 

 the shorter. 



l. Gymnotettix occidentalis, sp. n. 



General colour above dark olive-brown, with the sides of the pronotum and the tip of the abdomen reddish. 

 Face and basal portion of hind femora lighter. Eyes shining, dark brown, with a narrow yellowish 

 transverse median band. Apical portion of the hind femora, together with the tibiae and tarsi, brownish-, 

 black. 



Length of body ( $ ) 14 : of pronotum 2-45 ; of hind femora 12 millim. 



Hab. Beitish Honduras, Kio Sarstoon (Blancaneaux). 



