HBMIPTBEA HOMOPTEEA CBECOPID^E. 333 



Subfamily \\'l 1 i:< >I'l l< >KI DA sial. 



Ver\' few fossils have been referred to tliis uroiip of < lei'COpidse, as com- 

 pared with the other, although in temperate regions .-it the present day the 

 Aphrophorida an- in excess. I leer ami others ha\e described a number of 

 s species I'roin the Kuropean Ternaries, both in the rocks and in amber, arid 

 these have all heen referred to the single genus Aphrophura. Then- 

 however, a linn liter of others regarded by Heer as species of Cercopis, which 

 inii-l cerlainlx In- referred to the Aphrophorida, if his figures are at all cor 

 red : such are ( '. fasciata and (_'. pallida, probably also 0. oeningensi.-, and 

 perhaps C. rectelinea. The same is true of ( Jenuar'- ( '. nn-la-na from amber 

 As alread\- stated, the species from Florixant I t'onnerly regarded as related 

 to Ptyelns turn out to be true Cercopida, but there nevertheless appear at 

 this same station not only an obscure form temporarily referred to Aphro- 

 phora, but. two other forms of considerable interest, one of \\hich appear- to 

 be a distinct type, which I have called Palaphrodes. with .-everal species, 

 most of them tolerably abundant; the other, a single specimen, which must 

 be referred latitudinally to the highly specialized existing Clastopteia 



PALAPHKODKS gen. nov. (jraAa/o?, dtppto* 



Stout bodied, of oval form. Head well rounded in front, nearly twice 

 as broad as long, reaching on either side posteriorly the more sloping por- 

 tion of the front of the anteriorlv angulate and rounded thorax and there- 

 fore considerably narrower than it. Ocelli as far from each other as from 

 the eyes. Thorax hexangular, the lateral >ides the -hoi-test, and alter that 

 the central portion of the posterior border, which is slightly shorter than the 

 oblique portions, the whole thorax half as broad again as long and not cari- 

 nate. Scntellum rather small, equiangular, all the sides straight or the 

 lateral slightly concave. Tegmina broad oval, hut little more than t\\ ice 

 a> long as liroad, the costal margin strongly arched, the apex rounded hut 

 more or less acuminate, the neuration much as in Aphrophora. \Vi'ng- 

 ample, well rounded, with no apical emargination, a little shorti r than the 

 <iiina; the second and third and also the fourth and tilth longitudinal vein.- 



united 1)\- straight transverse or oblique cross-veins at equal distances from 



the margin, at alioiit the end of' the middh- third of the wing, the third and 

 fourth hv a similar vein at about the renter of the \\in- 



