108 



Nebraska (Scudder. Dodge); Colorado, Wyoming, New Mexico, Kansas, 

 Dakota, Missouri (Tliomas). 



Retnark — It is probable that Tomonotus nietanus, mexicanus, and 

 pseudo-nietanus of my paper, Proc. Acad. Nat. Sci. Phila., 1870, 82, and 

 Geol. Surv. Ten, 1870, 278-279, are but varieties of this species. I am now 

 satisfied, by an examination of a large number of specimens, that the first 

 two are not those of Saussure. Some of the specimens are uniformly pale 

 ash-brown, uniformly dotted with fuscoys; others, especially the males, 

 nearly black ; others have' the disk of the pronotum entirely pale-ashen, 

 others only its margins. As Mr. Scudder's description was probably from 

 an alcoholic specimen, I give the following, taken from fresh sjiecimens: 



Face pale-ash, dotted over very thickly with black points ; mouth 

 whitish ; outer joints of" the palpi white. Wings, with the broad, basal 

 portion a clear orange-red, bordered exteriorly with black; apex transparent. 

 Posterior femora crossed on the outside with three pale bands, the one near 

 the apex white and straight. Upper end of the posterior tibise black, then a 

 narrow white band, the middle portion bluish-green ; tarsi pale yellowish- 

 white. Central portion of the sternum greenish-yellow. My T. pseudo- 

 nietanus would probably take precedence of Dr. Scudder's name ; but, as 

 it applies only to a variety, and was given under an erroneous impression, 

 I adopt that of Dr, Scudder. 



«BDIPODA; L,atr. 



Gryllus, L"inn., Fabr., Zett., Say; Aa-idium, Oliv., H-Sch,, Costa,; Locusta, 

 Steph., Harr. ; CEdipoda, Latr., Burm, 

 Face vertical or sub-vertical, the lower portion sometimes arcuate ; tri- 

 carinate ; the median carina .(frontal costa) generally more or less sulcata, 

 somewhat prominent ; lateral carinas more or less distinct, divergent. Vertex 

 deflexed, with a central foveola, sometimes divided by a median carina ; on 

 each side of this, near the eye, is a small, triangular foveola, sometimes almost 

 obliterated, but the outlines, at least, always observable. Eyes ovate, and 

 then not very prominent, or sub-globose and then generally prominent; with 

 the latter there is generally an ascending or convex occiput. Pronotum of 

 moderate length, truncate or sub-angulate in front ; apex angulate ; anterior 

 lobes contracted, more or less transversely wrinkled, with the humeral angles 

 rounded ; the transverse inci.sions close together, the first and second sub-dis- 



