126 ENTOMOLOGICAL NEWS. [March, '08 



A Fossil Orthopterous Insect with the Media 



and Cubitus Fusing. 

 BY T. D. A. COCKERELL. 



The first really fine insect found in the miocene shales of 

 Florissant (Colorado) by the expedition of 1906 was a large 

 beautifully spotted Orthopterous wing or tegmen. It was dis- 

 covered by my wife at Station gL, and was put aside for de- 

 tailed study, which it has only recently received. The prin- 

 cipal reason why it was not described sooner was its apparent 

 resemblance to Lythymnetes guttatus Scudder, and the conse- 

 quent possibility that it might belong to that species. In 

 August, 1907, however, I went to Cambridge and examined 

 the type of Lythymnetes guttatus, finding it to be entirely dif- 

 ferent from our insect. L/ater, part of a tegmen of L. guttatus 

 was found in unpacking the collections of 1907 ; it was ob- 

 tained by Mr. S. A. Rohwer at Station 14. The new 7 form 

 may take the name Palaeorehnia, in recognition of Mr. Rehn's 

 important researches upon the Orthoptera. 



Palaeorehnia maculata n. g , n. sp. 



Tegmen. Exceedingly ample, the portion preserved 39 mm. long and 

 about 17 across ; the original length must have been over 55 mm. The 

 venation may be compared with that of Cyrtophillites rogeri Opp., from 

 the Jurassic of Bavaria. The subcosta is straight, a trifle arched about 

 its middle, and gives off veins above (three can be seen), more oblique 

 than those of Cyrtophillites (the costal region probably less ample); the 

 radius is practically straight (not kinked in the middle as in Cyrtophilli- 

 tes}, and the radial sector leaves it at the smallest angle possible, running 

 alongside of it and diverging very slightly, but at length giving off a 

 branch (the point of origin of this is not visible) which also leaves at a 

 very slight angle ; the media, so far as visible, is separate from the radius, 

 but at about 8 mm. from the base it approaches it very closely and proba- 

 bly joins it a mm. or so further back; the media gives off two oblique 

 branches below, the first or lower of which (M,,) unites with the anterior 

 branch of the cubitus for a short distance, at the level of and not far from 

 the origin of the other branch ; the cubitus, n or 12 mm. from the base, 

 breaks up into three branches, of which the first bends upward to join 

 the media (M 2 ), and then leaving it, very soon branches and the upper 

 ramus of the second branch forks again ; the second and third branches 

 of the cubitus are gently arched downwards, and appear to reach the 

 margin without forking ; the anal veins are three in number, the first two 

 long and strong, not branched, convex above at base, and for the 



