FOSSIL INSECTS OF THF BRITISH COAL MKASFTiKS. 



Genus SCALJEOPTERA, novum. 



Large wings, lid nun. or more in length. Costa marginal and slightly curved. 

 Snbcosta widely separated from margin and giving off straight, oblique and widely- 

 sc|)aTiit('d branches to the margin. liadins parallel with tin. 1 snlicosta, and giving 

 off the radial sector in the basal half of the wing. ]\Iedian with few divisions. 

 Cubitiis long, with few divisions. Wing feebly plicate. Interstitial neiiration 

 forming a fine, close reticulation. 



Scalaeoptera recta, sp. nov. Flate VI, tig. 1 ; Text-figure -7. 



'/'///"'. Basal half of left \\ inn 1 in counterpart, having a length of L? ( .i nun., and 

 a width of 11 mm.; British .Museum (no. I. 1: > >N7S). 



llnrh.iDi mill Lfn'ulif//. JMiddle Coal Measures (binds between the "Brooch" 

 and "Thick " coals); Coseley, near Dudley, Staffs. 



Description. The inner maryin of the wing is lost or concealed in the matrix. 



FiQ.27.Scalseoptera recin, gen. et sp. nov. ; <li;i'4r;iin of Hit' li.isal half . if wing, twice natural size 



JlicMli' O.;,1 Measures; ( Vscli-y. stiilWilsliiiv Brit. Mus. (no. I. i:!S7si. 



while the anal area, and possibly a parr of the cubital area, is missing. A portion 

 of the nodule containing the distal half of the wing is lost. The total length 

 of the win.n' could not have been less than <><) mm., and judging from its apparent 

 relationships, may have been more. 



The surface of the wing is slightly plicated, two low ridges bearing the radius 

 and principal branch of the cubit us, while the snlicosta and the median are deeply 

 sunk. Its membranous portion is strongly coriaceous, with stout cross-nervmvs 

 at wide intervals. The outer margin and the principal veins are feeblv spinnlose. 

 as best seen on the radius and radial sector. The outer margin is feeblv convex, 

 the fairly straighl course of the margin, and of ;dl the principal veins, pointing 

 to the wln^- being much longer than wide; a view also borne out. as we shall see 



later, by its possible relationships. 



The silbcosta is widel\ removed from the margin, parallel with it, and yivinn' 

 off a series of stout branches passing olilnpielv outwards to the margin. Of the^e 

 divisions, one onlv is clearlv forked. 



Two portions of the radius are present, a short basal port ion, and a second 

 pieer lurther out. The vein is separated from the snbco.Ma bv an interval less 



