S. II. Scuddcr — European Fossil Cockroaches. 13 



the anal area by its fulness interfering a little with the regularity ; 

 it is a little more than two and a quarter times as long as broad ; 

 the costal margin has a very regular and moderately convex curve, 

 while the inner margin, beyond the fuller and more convex anal 

 area, is nearly straight ; the tip is imperfect in the two specimens 

 known. The veins originate slightly above the middle of the 

 tegmina and at first all curve upward, but not so strongly as in 

 E. primceva, to which this species is most nearly allied, so that the 

 externoraedian vein passes more nearly through the middle of the 

 tegmina. The mediastinal vein passes in a scarcely sinuous course 

 to somewhat beyond the middle of the front margin, emitting about 

 half a dozen nearly straight simple or deeply forked branches. 

 The scapular vein is broadly and gently sinuous, extending to the 

 apical margin a very little above the apex, begins to fork before 

 the middle of the proximal half of the tegmina, and has four 

 subequidistant blanches, of which the first is compound, the others 

 forked or simple. The exter.nomedian vein first forks near the 

 middle of the tegmina, where it divides into two very similar, weakly 

 arborescent, longitudinal stems carrying about ten or a dozen vein- 

 lets to the apical, and to the outer portion of the inner, margin. 

 The internomedian vein is very regularly and rather gently arcuate, 

 except for a slight apical sinuosity which carries it nearly to the 

 apical sixth of the tegmina, and has about five nearly straight 

 branches, some of the basal ones simply or doubly forked. The 

 anal furrow is not very deeply impressed, very regularly but not 

 very strongly arcuate, and ends at about the middle of the tegmina. 

 The anal veins consist of two sets, rather widely separated at the 

 base, the inner set consisting of a several-branched main stem sub- 

 parallel to the anal furrow, the outer of four or five simply or 

 doubly forked, approximated, slightly divergent nervules, more 

 nearly longitudinal than the other set. 



The two specimens known, one with its reverse, are coal black : 

 one (Fig. 1) with its reverse is nearly perfect, having lost only the 

 shoulder and the apical margin ; the other (Fig. 2) consists of two 

 tegmina, of one of which only the base and the anal area is preserved, 

 and which lies partially concealing the reversed face of the other, 

 of which the basal portion and considerable of the apex is lost. 

 Excepting in the anal and internomedian areas the veins are pro- 

 nounced, being deeply incised ; in the internomedian area they are 

 very delicate. Towards the apex of the tegmina an exceedingly 

 delicate reticulation can be detected in the interspaces, which gives 

 way in the centre of the tegmina to a very close series of dulled 

 cross lines, and become in the scapular area parallel to the nearer 

 margin. 



Length of the tegmina, 38 mm. ; breadth, 1825 mm. 

 The two specimens differ from each other in hardly anything but 

 the simplicity or complexity of the several branches of the main 

 veins, particularly in the upper stem of the externomedian vein 

 and the principal branches of the internomedian vein. In one, 

 however, the costal margin appears to be distinctly more arcuate 

 than in the other. 



