Scudder.] 
48 
[Nov. 7, 
the extreme apex, is gently and regularly arcuate, its concavity to- 
wards the costal border, but also gently declivent, and probably 
terminates only a little below the tip of the wing ; its branches 
are mostly simple (the apical ones apically forked), tolerably num- 
erous, all but the apical ones arcuate with their concavity outward 
and upward. 
Broad bands of black follow the principal veins, in the scapu- 
lar and externomedian veins of greatest breadth, enveloping the 
branches as well, until they part widely from the parent stem ; in 
the mediastinal and internomedian veins narrow, but compensated 
for by broad belts which border the costal and inner margins and 
envelop at least one-half the length of the branches of these vein^. 
This species most nearly resembles in neuration E. tenuis , but 
differs from it in the greater stoutness of the wing, the fasciated 
veins and the structure of the scapular vein. 
Length of fragment 14 mm. ; probable length of wing 27-28 mm. ; 
breadth of wing 10 mm. 
Barren coal measures, Richmond, Jefferson Co., Ohio. S. Hus- 
ton. 
Another specimen, apparently belonging to this species, comes 
from a different horizon. It shows only the tip of a wing (appar- 
ently smaller than the other), but agreeing essentially in neura- 
tion and having the same bands accompanying the main nervures 
and bordering the wing, it may be regarded the same. If so, it 
would show that the main scapular vein curved downward apically, 
as one would expect it to do, and terminated some distance before 
the tip. The externomedian vein, however, seems to fork a little 
later than in the other wing and with its veins to occupy the whole 
breadth of the tip of the wing. 
Length of fragment 9 mm. ; width 6 mm. 
Cassville, W. Va., from the Waynesburgh coal seam, looked up- 
on as permocarboniferous. R. D. Lacoe, No. 2066. 
This is the second cockroach found common to the upper car- 
boniferous and permocarboniferous, the other being another closely 
related, formerly described as Gerablattina balteata , but which 
should be referred to Etoblattina, as stated. 
Etoblattina marginata, nov. sp. 
Although only a fragment of this wing is preserved, it is so char- 
acteristic and contains so much of the most important parts of the 
