224 TERTIAKY INSECTS OF NOKTI1 AMERICA. 



he compares to OEdipoda coarulescens, ;uid I liave seen an undescribed form 

 from Aix in the hands of M. Oustalet which is apparently allied closely to 

 Chimarocephala. Of the Radoboj species described by Heer, 0. nigrofas- 

 eiolata, as stated above, is probably a Scyllina and not an oedipodid. (_). 

 melanosticta is perhaps an Hippiscus, and O. haidingeri a Dissosteira, or 

 certainly very close to it, Of the Oeningen species which Heer describes, 

 0. fischeri looks somewhat like a Chimarocephala, and O. germari (not 

 described) is said by Ileer to belong near Pachytylus. O. oeningensis is 

 too obscure to say that it belongs in this family. The larger part of the 

 European species would therefore seem to have decided American affinities, 

 Chimarocephala, Dissosteira, and Hippiscus being distinctively American. 



Of the American species, one is referred to CEdipoda only in a general 

 sense; the two others belong to new genera, one near the end, the other 

 next the end of the series, in the vicinity of Chimarocephala and Encopto- 

 loplius, American genera. 



The family finds its greatest development in the north temperate 

 regions of the world, and is remarkably abundant in forms in North Amer- 

 ica, and particularly in the warmer and more arid parts of the United 

 States. (July, 1884.) 



NANTHACIA gen. nov. (Nanthace + grasshopper, Otoe). 



This name is proposed for a genus of (Edipodidse which is allied to 

 Encoptolophus, but in which the upper ulnar vein of the preanal area of 

 the hind wings does not extend nearly to the margin of the wing but ter- 

 minates before the middle, as it does in the tegmina, in a fork which extends 

 above to the radial and below to the lower ulnar vein. 



NANTHACIA TORPIDA. 



A single specimen of this has been recovered, showing a hind wing 

 only, in which the anal area is closed and the preanal almost fully exposed. 

 The principal radial vein runs in close proximity to the costal margin, and 

 it is connected witli the veins above by very short cross- veins, and near the 

 tip of the wing by a stigma, as in Encoptolophus. It lias two principal ob- 

 lique forks, the inner arising only a little within the middle of the wing and 

 terminating on the ulnar a little before the outer margin, the other arising 

 rather less than a third of the way from the former to the apex and ter- 



