OtiTHOPTERA— AORIDIDAE— TROPIDOLPI1US FORMOSUS. 885 



satisfied belong- to this genus, I give briefly its characters from the 

 " Mecensio." 



Median carina of the pronotum somewhat prominent and twice notched; 

 posterior margin distinctly angulate, generally rectangular ; posterior lobe 

 much longer than the anterior. Eyes never louger than the infraocular 

 part of the cheeks, but generally much shorter. Axillary vein confluent 

 with the anal vein. 



I think, from the species mentioned, that the top of the head is generally 

 elevated, and the median foveola of the vertex probably confluent with the 

 sulcus of the frontal costa. 



PSINIDIA FENESTRALIS, Serv. 

 GZdipnda fenestralis, Serv., Hist. Orthop., 726. 



PSINIDIA KIOWA, Thos. 

 (Edipoda Mowa, Tho.s., U. S. Geol. Surv. Terr., 1871, 461. 



Two specimens in the collection of 1872 ; locality not given. 



By some oversight I described this species the second time in my 



Synopsis, 123, as new, under the name CE. plattei, which must therefore be 



suppressed. 



EPHIPPIGERA. Hald. 



EPHIPPIGERA TSCHIVAYENSIS, Hald. 

 A single specimen of this singular species was contained in the collec- 

 tion, but I find on examination that it is now missing, so that I cannot 

 state positively where it belongs, but an examination made when I first dis- 

 covered it satisfies me that it should be placed near Eremobia. The figure 

 given in Stansbury's report is correct. The specimen I examined was a 

 perfect female, which has satisfied me that I was mistaken in supposing 

 Haldeman's specimen was a pupa. If I should find it, I will determine its 

 position, and report on it hereafter. 



TROPIDOLOPHUS, Thos. 

 TKOPIDOLOPHUS FORMOSUS, Say. 



Grijllus fonnosus, Say, Am. Ent. ed. Lee, i, 78, pi. 34. 

 Tropidolophus formosus, Thos., Synop., 138. 

 Cyrtolopha formosa, Stal., Reeeusio, 118 (note). 



The collection of 1873 contains one very large specimen ( 5) of this 



