124 



sjjols ; lower half with two broad fuscous bauds, behind each a pale-yellow 

 immaculate space, appearing as two oblong, fuscous spots, alternating with 

 two pale spots. Wings pale transparent-yellow at the base (color when 

 hving unknown) ; a moderately broad band crosses just beyond the middle, 

 curving abruptly upon the posterior margin to the anal angle ; tip more or 

 less clouded, rest pellucid ; nervules pale-yellow (tip of the male fuscous). 

 Posterior femora with two or three dim, oblique bands outside; inside blackish 

 next the base ; a pale ring near the apex. 



Dimensions — 9 Length, 1 inch; elytra, same; hind femora, 0.55 inch; 

 liind tibia?, 0.5 inch. <? Length, 0.75 inch. 



Near Platte Rivers in Colorado and Wyoming (Thomas). 



Division 3. — Head usually as narrow as the front of the thorax ; the 

 occiput not or but slightly elevated ; eyes less prominent than in the preced- 

 ing division, and generally rather small compared with the size of the head, 

 sub-globose. Thorax broad and massive; disk of the pronotum nearly flat, 

 especially on the posterior lobe ; median carina but slightly elevated, some- 

 times simply a raised line ; j^i'oiiotaim usually short and rapidly expanding 

 posteriorly ; the hind border generally right-angled or sub-acute. Posterior 

 femora broad and compressed. 



Sub-division 1. — The pronotum short, rapidly expanding posteriorly 

 from near the front border ; disk flat and smooth; median carina very slight, 

 consisting simply of a raised line ; lateral carinse distinct on the posterior 

 portion, but obtusely rounded, and in no way elevated. 



€E. iiiaritiina, Uhler, Harr., Rep., 178. 

 Syn., Locusta maritima, Harr., Rep., 178. 



Central foveola of the vertex slightly elongate; middle line seldom pres- 

 ent in the female, absent in the male ; open in front, and the margins contin- 

 uous with the margins of the frontal costa. Frontal costa sulcate, slightly in 

 the female, distinctly in the male. Median carina of the pronotum simply a 

 raised line on the posterior lobe, slightly more elevated on the middle and 

 anterior lobes, twice severed by transverse incisions ; lateral carinaj sub-dis- 

 tinct ; disk of the posterior lobe flat ; apex right-angled. Elytra and wings 

 passing the abdomen ; posterior femora about equal to it. Antennae rather 

 longer than usual. 



Colo/:— An ash-gray, tinged with brow uish. Face variegated with white. 



