472 SAMUEL II. SCUDDER ON 



branching next the border like the median branches, but where it abuts against these lat- 

 ter, they simulate the appearance of the anal branches so as to appear as it' a part of the 

 anal area, and thus give the latter the appearance of extending out beyond the broadest 

 part of the wing. The specimen is of a slightly glistening, dark brown color on a dirty 

 brown stone, the veins and all the nervules sharply though only slightly impressed, while 

 the whole wing is at a dead level. 



Length of fragment, 10.5 mm.; probable length of wing, 12 mm.; breadth, 5.75mm. 

 Received from Eev. P. B. Brodie, as coming from the Upper Lias of Alderton, Glouces- 

 tershire, England. 



Pterinoblattina hospes 



Ricania Jwsjies Germ., Acta Acad. Leop.-Carol., xix, 220-21, PL 23, fig. 18. 

 Pterinoblattina hospes Scudd., Proc. Acad. Nat. Sc. Philad., 1885, 108. 



Germar took this lor one of the Fulgorina, in the neighborhood of Ricania and Poecil- 

 optera. Assmann thought it a nenropteron, falling in the neighborhood of Drepanop- 

 teryx. It is pretty plain, however, that it belongs here, though the figure given by 

 Germar is not sufficiently clear to enable one to formulate any characteristics. It would 

 seem, however, that the scapular vein probably terminated on the costal margin some 

 way before the tip, and that the latter is shaped much as in P. intefmixta, and occupied 

 by median branches only; these are more oblique and the lower outer angle much less 

 prominent than in P. intermixta, while in the present species the anal angle is prominent 

 and the anal area extended by that alone, occupying a very oblique equal basal band. 



It comes from the Oolite of Solenhofen, and measures about 25 mm. in length and 

 13.5 in breadth. 



Pterinoblattina gigas. 



Ricania gigas Weyenb., Arch. Mus. Teyl., u, 270-71, PI. 35, fig. 23. 

 Pterinoblattina gigas Scudd., Proc. Acad. Xat. Sc. Philad., 1885,108. 



Following Germar, Weyenbergh placed this enormous species in Ricania, but it evi- 

 dently falls here and bears a close general resemblance, excepting in size, to P. penna 

 of the Purbeeks. It differs from P. hospes, which it most resembles, in the greater ex- 

 tension of the scapular area, which nearly reaches the tip, and in the farw ider extension 

 and angular protrusion of the anal angle. 



It measures (50 mm. long and 35 mm. broad, and comes like the last from the Oolite of 

 Solenhofen, Bavaria. 



Pterinoblattina? Sipylus. 



Sialium Sipylus Westw., Quart. Journ. Geol. Soc. Lond., x, 390, 39G, PI. 18, fig. 24. 



Westwood considered this to represent "a wing of an insect allied to Sialis," while of 

 the closely allied form, P. Binneyi, he says it appears "to be orthopterous." An exami- 

 nation of the series of wings here ranged under the name of Pterinoblattina will convince 

 any one of the close proximity to them of these two abnormal wings; in their elongated 

 form they are indeed entirely different, and were they certainly comparable as front wings 



