68 



PSYCHE. 



rjune 1900. 



Hadrotettix trifascialus Sciidd., 

 Ann. rep. chief eng., 1S76, 511 (1S76). 



Arphia trifasciata Caulf. , Rep. ent. 

 soc. Ont., sviii, 70 (iSSS). 



Oedipoda fruinosa Thom., Proc. 

 acad. nnt. sc. Philad., 1870, 80 (1870). 



Oedipoda hoffmanii Thorn., Rep. 

 U. S. geol. siirv. terr., v, 137 (1873). 



I have spechnens before me taken 

 on the explorations for the N. Pacific 

 R. R. ; from the Upper Missouri and 

 Yellowstone Rivers ; from south of the 

 Black Hills, S. Dak., Nebraska City, 

 Nebr., Colorado (Morrison), Pueblo, 

 Col., Texas (Lincecum), Dallas, Tex. 

 (Boll), Bosque Co., Tex. (Belfrage), 

 Eagle Pass, Tex. (Schott), Pecos Riv- 

 er, Tex. (Pope), and Fort Buchanan, 

 Ariz. It has been reported from many 

 of these districts by others, and also 

 from Alaska [by error.?] (Caulfield), 

 Assiniboia (.Scudder), British America 

 (Bruner), Dakota and Montana (Brun- 

 er), Wyoming (Thomas, Bruner), 

 Nevada (Thomas), Utah (Thomas, 

 Saussure), Arkansas River (Say), and 

 New Mexico (Scudder, Thomas, Sauss- 

 ure), so that it probably inhabits the 

 whole Rocky Mt. region west of the 

 eastern margin of the Great Plains, and 

 east of the .Sierras, from Assiniboia to 

 the southern borders of Texas. 



Hadrotettix gracilis. 



Hadrotettix gracilis Brun. ! MS., 

 Publ. Nebr. acad. sc, iii, 25 (1S93). 



I have specimens from Valentine and 

 Fort Robinson. Nebr., and Hot 

 Springs, S. Dak., received from Bru- 



ner ; as well as from Las Animas, Col., 

 Bosque Co., Tex., and Fort Whipple, 

 Ariz. It therefore has probably much 

 the same range as the preceding. It 

 is a little smaller than that species. I 

 have also received this species from 

 Bruner as coming from Nebraska and 

 labelled H. minor Brun. MS. 



Hadrotettix mundus sp. nov. 



Moderately slender for the genus; brown- 

 ish plumbeous, occasion.-illy ferruginous, 

 often and especially in the male more or less 

 albescent, particularly on the head; the lat- 

 ter well rounded, rather prominent, the fasti- 

 gium of vertex slightly impressed, with a weak 

 median carina, the frontal costa not very 

 broad, expanded a little below the ocellus, a 

 little sulcate and punctate, especially in the 

 male; antennae scarcely (^ ) or a little ($) 

 shorter than the hind femora, dull ferrugin- 

 ous, alternating obscurely with dull testa- 

 ceous, often pallescent toward base. Pro- 

 notum of nearly uniform coloring, brown- 

 ish plumbeous or ferruginous, but with the 

 lateral lobes often more or less feebly albes- 

 cent, particularly in the male, rarely obscurely 

 punctate with fuscous, the lateral carinae 

 prominent but rounded on the metazona, 

 which is feebly rugulose and posteriorly rec- 

 tangulate or subrectangulate. Tegmina 

 brownish at base, beyond pale cinereous or 

 albescent, crossed by two conspicuous heavy 

 fuscous bands and a broken third band, often 

 with a few obscure maculations apically, the 

 dense reticulation of the base scarcely extend- 

 ing be^'ond the middle; wings pale citron 

 yellow at base, crossed in the middle by a 

 fuscous band scarcely if any wider than one 

 of tlie bands of the tegmina, narrowed and 

 interrupted at the lower margin of the hu- 

 meral area, reaching the hind border but not 

 following it toward the anal angle, sending a 

 humeral taenia half way to the base, the 

 wings beyond the hand pellucid with infus- 



