*08) ENTOMOLOGICAL NEWS. 127 
it ourse gently convex below. The veins, as in Grio- 
priltibe are crossed by numerous transverse veinlets ; these occasionally 
on consists of light spots on a ferruginous-brown ground 
| variou eee oe Salman 7 ‘the spots cluster along the veins, and 
eee 
‘ 
Ja ab.—Florissant ; Miocene, Station 9 L (W. P. Cockerell, 
_ The interpretation of the venation of Palacorchnia was not 
-atonce evident; the union of the media with the cubitus and 
its later departure therefrom, is a confusing character, only 
‘feadily understood by comparison with other types. Curiously 
racter is present in the ancient and extraordinary in- 
Sassen bockingi Dohrn., from the Permian. The 
character is found in the anterior wings of the Neu- 
serous Sialis and Raphidia. Among the fossil Orthoptera 
> union of the cubitus with the media is found in Cyrio- 
rogeri, an insect with broad tegmina having many 
nee to Pteaeetate, together with very im- 
the ordinary Acridiidae the cubi- 
a 
Among the specimens and figures of recent Orthop- 
a available, I was not able to find any genus in which the 
media and cubitus fused in the manner of /alacorchnia. Mr. 
 Rehn has very kindly sought for this character among the far 
materials at his command, and has found it essentially 
in Palacorchnia and Cyriophyllites, in the Phaneropterid 
genus, 7¢trachoncha Karsch., 1890. This genus is exclusively 
Siem, with four known species. [n the Pseudophyllinae 
Mr. Rehn found tendencies to the same condition in a great 
_ number of diverse genera, but in no case true coalescence. In 
_ eighteen of Phanopterinae he found tendencies similar 
_ to those just described for Acridiidae ; the character of the 
wis serving, the approach being very decided in /schyra, 
M 
