S. H. SCUDDER ON PALAEOZOIC COCKROACHES. 79 



points of neuration mentioned by Goldenberg, and by others, has a much less convex costal 

 margin and a more regularly and gently tapering form. 



The single specimen comes from Lobejun, Germany. Upper carboniferous. 



Etoblattina manebachensis. PI. 2, fig. 14. 



Blattina manebachensis Gold.. Neues Jahrb. f. Mineral., 1869, 100, taf. 3, fig. 4; — lb., 



Faun, saraep. foss., ii, 19. 



The front wing is long obovate, both margins being somewhat similarly curved, although 

 the inner is more strongly and more regularly convex than the costal margin, the latter 

 being straight in its middle half; the tip is neither broadly rounded nor produced ; the 

 veins originate slightly above tbe middle of the wing, and curve upward gently before 

 becoming straight ; beyond this they are all unusually straight. The mediastinal vein runs 

 parallel to, and tolerably distant from, the costal margin in the basal half of its course, the 

 area here occupying a little less than a third of the breadth of the wing ; beyond, the vein 

 gradually approaches the margin, meeting it only a little beyond the middle of the 

 wing ; it emits half a dozen or more simple or simply forked oblique branches. The scap- 

 ular vein is very straight, scarcely curved at the extremity as it approaches the border, just 

 before the apical margin of the wing ; it runs subparallel to the costal margin, commences 

 to divide at the end of the basal third of the wing, and has about five branches ; the basal 

 one compound, the next forked, and the others simple, all taking the course of the medi- 

 astinal branches, and together occupying an area from one-fourth to one-third the width 

 of the wing. The externomedian vein commences to divide scarcely earlier than the scap- 

 ular vein, and emits about as many branches, which are simple, straight and longitudinal 

 for a long distance, commencing to divide only opposite the origin of the last branch, when 

 they fork almost simultaneously, the first again dividing ; the area occupied by them is very 

 regularly wedge-shaped, and at the margin occupies the entire apex of the wing. The inter- 

 nomedian vein runs very close and parallel to the preceding vein, being arcuate at the base 

 and beyond straight, meeting the lower border opposite the tip of the scapular vein ; it 

 emits seven or eight, generally simple, occasionally forked, nearly straight, parallel, oblique, 

 and rather distant veins. The anal furrow is well impressed, strongly arcuate, but straight- 

 ened apically, striking the margin a little beyond the basal third of the wing ; the area 

 covers about two-fifths of the width of the base of the wing, and is occupied by eight or 

 nine simple or deeply forked veins, arcuate next the anal furrow, straight and crowded 

 toward the inner angle. 



The wing, by the similarity of its margins, differs from most Etoblattinae, E. Dohrnii 

 alone resembling it closely ; it is also peculiar for the extreme straightness of its principal 

 veins. It is of medium size, the single specimen known being a perfect fore wing, 25.5 

 mm. long, and 10 mm. broad; or the breadth is- to the length as 1: 2.55. From Etobl. 

 Dohrnii, which it so closely resembles in general form, and in the straightness of the veins, 

 it is readily distinguished by the crowding of the branches, the brevity of the mediastinal 

 vein, and the early division and numerous branches of the externomedian vein. It is larger 

 than, and not so tapering as, Etobl. leptophlebica, besides being immediately distinguished by 

 the straightness of the scapular vein. From Etobl. elongata it is abundantly distinct by its 

 broader form, and by the straightness of the apex of the scapular vein. The straightness 



