04 S. H. SCUDDER ON PALAEOZOIC COCKROACHES. 



of Germar's species as given in Minister's Beitrage, he would certainly have come to a dif- 

 ferent conclusion. 



As indicated above, the species is very closely allied to Etobl. anthracophila, from which 

 it differs in the points mentioned, as well as in the greater narrowness of the mediastinal 

 area, and in the less arborescent branching of the extremity of the internomedian area. 

 From Etobl. affials, with which it agrees in size, it differs in its rather shorter mediastinal 

 area, the wider interspaces of the externomedian area, and in the shape of the wing, the 

 costal margin of which is more convex and the whole wing not so slender. 



Germar's single specimen came from Wettin, Germany. Upper carboniferous. The two 

 specimens described by Geinitz, from the lower dyas of Weissig. 



Etoblattina anthracophila. PL 2, fig. 1. 



Blattina anthracophila Germ., Miinst. Beitr. z. Petref, v, 92-93, tab. 13, fig. 3 ; — lb., 

 Verst. Steink. Wettin, 84 (" ? = Bl. anaglyptica ") ; — Gieb., Deutschl. Petref., 637 ; — 

 Heer, Viertelj. naturf. Gesellsch. Zurich, ix, 287 (" = Bl. anaglyptica "). 



Compare the synonymy of Etobl. jlabellata. 



The front wing is of medium size, rather slender and regularly tapering, both costal and 

 inner margin very gently convex, the tip broken in the only specimen known, but probably 

 rather contracted and well rounded. The base of the veins is not preserved. The medias- 

 tinal vein terminates a very little beyond the middle of the wing, and the branches, the 

 apical ones at least, are tolerably distant, simple, and a little curved ; the area is rather 

 broad, occupying in the middle more than a quarter of the breadth of the wing, and nar- 

 rowing throughout nearly the whole of the apical half; the basal half or more unknown. 

 The scapular vein is very closely approximated to the mediastinal, begins to divide before 

 the middle of the wing, or opposite the last branch of the mediastinal, and has an arcuate 

 course beyond this, the convexity downward, and terminates a little before the apex of the 

 wing ; the branches are about six in number, having a direction parallel to those of the 

 mediastinal vein, simple or forked (in the specimen cited, the first two are forked, the oth- 

 ers simple), and the branched portion of the area occupies about one-third of the breadth 

 of the wing. The externomedian vein is broadly sinuous, its curve in the fragment pre- 

 served, and the location of the other veins, indicating that it curved rather strongly at 

 base ; it commences to branch with the scapular vein and emits two or more very long 

 branches, the first of which is compound and the second simple in the specimen ; the vein 

 occupies a long and very narrow area in the middle of the wing, and on the margin the 

 entire tip and a portion of the extremity of the inner border. The internomedian vein is 

 also sinuous, being at first probably arcuate, then straight and very gradually approaching 

 the inner margin, until a short distance beyond the middle of the wing, when it assumes a 

 longitudinal direction, and finally curves downward to the border in the middle of the api- 

 cal fourth of the wing ; it throws off a considerable number of veins, those emitted before 

 it assumes a longitudinal direction being straight, oblique, simple and rather distant, those 

 beyond being simple and compound, and rather closely approximated. The anal furrow is 

 rather strongly and regularly arcuate, terminating at about the end of the basal third of 

 the wing ; the anal veins, about six in number, are simple and subparallel to the furrow. 



