Äcrididae. 1275 



östl. vom Mississippi (von Rocky Mts. bis Maryland): maritima, saxa- 

 tilis u. citrina. 



Es fehlen innerhalb des Gebietes der Vereinigten Staaten: tolteca, ochra- 

 ceipennis, pallidipennis, lauta u. coUaris. 



auf die Rocky Mountain s-Staaten: 27: monticola von Colorado bis 



hinein nach Mexico, pistrinacia von Texas bis hinein nach Mexico, texana von 



Texas bis Mexiko. — cristata von Nieder-Californ. bis z, Salt Lake Valley, 



Utah. — latifasciata von Utah bis Washington. — caeruleipennis von Californien 



bis Wyoming. — Auf Nebraska beschränken sich: salina, agrestis u. praeclara. 



— Auf New Mexico:- nubila, modesta u. melanoptera. — Auf Wyoming: 



fratercula u. campestris. 



Eiutheilung: 



A^. Tegmina piain isabelline, not banded and with spots not segregated into 



groups extending across the wing. Frontal costa sulcate as strongly above 



as below the ocellus, its carinae continous v^rith the carinae of the 



Vertex. Pronotum vpith the disk flat. Area of the cubital forks narrow and 



with few exceptions occupied wholly or in part by a Single row of quadrate 



cells. Wings always long with the disk greenish yellow or hyaline throug- 



hout. Posterior tibiae never blue. Agonozoa nov. subg. 



a^. Lateral lobes of the pronotum with a dentation on the posterior part 



of the lower border. 



b^. General color pale testaceus, very piain. Wings transparent 

 without a trace of a fuscous band. Tegmina without bands and 

 with a very few spots restricted alraost entirely to the middle 

 field. Posterior femora light on the inner face with the usual 

 black bands obsolete. hyalina-Gruppe mit hyalina n. sp. 



b^. General color isabelline. Wings with a definite fuscous band, or 

 at least with plain-indications of such a band in the iufuscated 

 nerves of the region usually occupied by the band. Pronotum 

 with a definite stripe extending along the sides of the disk, or 

 at least with the edges lighter than the middle. 



texana-Gruppe. 



Hierher: texana Bmner, rebellis Sauss., albolineata Bruner, 



cristata n. sp. u. porrecta n. sp. 



a^. Lateral lobes with no dentation on the posterior part of the lower 



border, or if there is a blunt tooth present, the fuscous band is weak 



or interrupted and the pronotum has no definite stripe along the 



lateral edges of the disk nor is the middle darker than the lateral 



borders. maritima- Gruppe. 



Hierher maritima Harris, ochraceipennis Blanchard, gracihs Thomas, 



coquilletti n. sp. 



A^. Tegmina fasciata, with solid well defined bands reaching at least half way 



across the wing from the anterior margin, or by the segregation of annular 



spots, fascia sometimes faint on account of the slight contrast between 



them and the ground color. Rarely the tegmina are not fasciate, then they 



are evenly maculate with fuscous annuli and the wings are broad with the 



apical half fuscous or fuligiuous. Frontal costa geuerally sulcate above the 



ocellus for a short distance only, below the vertex rounded and puuctate. 



