130 FOSSIL INSECTS OF THE BRITISH COAL MEASURES. 



crossed by six anal veins, the first being a large structure breaking np into four 

 branches, and more widely separated from the anal furrow proximally than is its 

 outer branch distally. The second vein is simple. The third forks twice, and ends 

 in three twigs. The fourth and fifth fork once each. Traces of two more anal 

 veins are seen on the margin. 



The interstitial neuration can only be distinguished clearly in the anal area, 

 and consists of irregular cross-nervures which cross the main veins and unite 

 laterally to form a meshwork, which is not, however, of a -strictly reticulate 

 character. 



Soomylacris stocki, sp. nov. Plate IX, fig. 3; Text-figure 41. 



1895. Moblattina deanensis, Soudder (in part), Bull. U.S. Geol. Surv., no. 124, p. 34, pi. xii, fig. 3. 



1896. Etoblattina deanensis. Seudder, Geol. Mag. [4], vol. iii, p. 12, fig. 2. 



1906. Soomylacris deanensis, Handlirsch, Die Fossileu Insekteu, p. 260, pi. xxvn, fig. 16. 



Horizon ((ml Locality. — Coal Measures; Crump Meadow, Forest of Dean, 

 Gloucestershire. 



Type. — Fragments of two tegmina; U.S. National Museum, Washington (Lacoe 

 Collection, no. H. 2132 c; Nat. Mus. no. 38090). 



Description. — The fragment of a left tegmen has lost much of its base and apex, 

 while the greater part of the anal area is obscured by the anal area of the 

 presumably opposite right tegmen. It lies with the under-surface uppermost, the 

 anal area of the second tegmen being right side uppermost. Feeble traces of what 

 appear to be a hind- wing can be distinguished through the fragment of tegmen, 

 and project a little beyond its margin at one point. The specimens are on a dark 

 grey shale in which occur numerous remains of Neuropteris, Annularia, etc. 



The outer margin is seen on the displaced shoulder of the wing, and on the 

 portion of the outer half of the Aving that remains. It is more convex than in 

 S. deanensis, and the shoulder bends inwards almost at a right-angle, that of 

 8. deanensis being regularly rounded. 



The subcosta is represented by the bases of three stout veins which spring 

 from the same point, all showing forking, and by two straight veins running out 

 on the costal margin on the fragment. These two seem to be the terminals of the 

 innermost forking seen on the shoulder of the wing. The intercostal area is 

 broader than that of S. deanensis. The base of the radius is missing, and the 

 union of the two twigs into which the outer branch divides is missing. Each of 

 these twigs forks again half-way between its origin and the margin. 



The inner branch of the radius divides by twice forking, and the inner of the 

 resultant twigs forks again, so that the radius ends on the margin in at least nine 

 twigs. 



