TYTTHOTYLE.— PHKYNOTETTIX. 197 



1. Tytthotyle maculata, Bruner. (Tab. II. fig. 9, s .) 

 Thrincus (?) maculatus, Bruner, Proc. U.S. Nat. Mus. xii. pp. 79 } 89 (1890) \ 

 Tytthotyle maculata, Scudd. Canad. Ent. xxix. p. 75 (1897) 2 . 



Hah. Noeth Amekica 1 2 , Yuma and Needles, California (H. F. Wicleham). 



This insect appears to be rather restricted in its range, and, at the same time, quite 

 rare. It has been reported but a few times, and then only in small numbers ] 



PHRYNOTETTIX, Uhler. 



Ephippigera, Haldeman, in Stansbury's Expl. and Surv. Great Salt Lake, Ins. p. 371 (1852) 



(nee Latreille). 

 Phrynotettix (Uhler, MSS.), Glover, Illustr. N. Am. Ent., Orthopt. t. 6. fig. 25 (1872). 

 Eremobia, Thomas, Rep. U.S. Geol. Surv. W. 100th Merid. v. p. 886 (1875) (nee Serv.). 

 Haldmanella, Saussure, Addit. Prodr. CEdip. p. 153 (1888). 

 Haldemanella, Bruner, Proc. U.S. Nat. Mus. xii. p. 81 (1890). 

 Haldemannia, Townsend, Ins. Life, vi. p. 31 (1893). 



The locusts which comprise the present genus are typical denizens of deserts, and 

 are especially characteristic of the arid regions of Northern Mexico and the South- 

 western United States. While the individuals of each form vary considerably, among 

 themselves, they nevertheless offer fairly good characters by which they may be 

 assigned to their respective species. Being so toad-like in their actions and general 

 appearance, and frequenting as they do such out-of-the-way localities, comparatively 

 few specimens have come into the hands of orthopterologists. Undoubtedly still 

 other forms will eventually be added to those here recorded. 



Table for separating the Species of Phrynotettix. 



A. Lower edge and inner face of hind femora largely dark brown or 

 black. Tegmina squamiform, lateral, in the males scarcely reaching 

 the middle of the second abdominal segment. 

 b. Smaller, with the pronotum less strongly rugose ; the hind femora 

 in the female 11-17 mm. long. 



c. Pronotum of ? 11-14 mm. long 2. tschivavensis , Hald. 



cc. Pronotum of ? 17 mm. long [3. taosanus, Kehn.] 



bb. Larger, with the pronotum strongly rugose; the hind femora in 

 the female 16-20 mm. long. 

 c. Insect not excessively robust. Pronotum of ? 18-20 mm. long . 4. magnus, Thorn. 

 cc. Insect, especially the female, excessively robust. Pronotum of 



? 16-17 mm. long 1. verruculatus, Uhl. 



A A. Lower edge and inner face of hind femora pallid. Tegmina of 

 males with their dorsal edges touching or overlapping, one-half 

 to two-thirds as long as the abdomen 5. robustus, Bruner. 



