Dr. H. Woodward — Fosdl Insect from Coal-measures, 27 



dichotomies before reaching the margin at III. The median 

 nervure (V) commences singly at the base of the wing and gives off 

 two branches ; the upper one, curving slightly upwards, unites with 

 the lower or third subdivision of III, s, and reaches the lower 

 distal border at V; the lower branch subdivides into two, the 

 upper nervure reaching the margin singly, the lower subdividing 

 into two before ending about the middle or lower half of the 

 posterior border ; the cubitus (VII) is mostly hidden by the pinnule 

 of a fern-leaf, but the direction it follows is indicated by a dotted 

 line. It reaches the margin in two branches. Four anal or basal 

 nervuies follow, all of which are simple and have no dichotomies. 



Fig. 2. — "Wing of Lithomantis [Corydalis) Bronc/niarti, Mantell, sp. 

 Coal-measures : Coalbrookdale, Shropshire. 



I have already suggested ^ to the discoverer of this interesting- 

 specimen that it was probably nearly related to Lithomantis 

 carlonarius, H. Woodward, figured and described by me (Quart. 

 Journ. Geol. Soc, 1876, vol. xxxii, pp. 60-65, pi. ix, fig. 1) from the 

 Coal-measures of Scotland, and also to the much earlier described 

 wing of Lithomantis (Corydalis) Brongniarti (Audouin), G. A. Mantell^ 

 from Coalbrookdale. 



Fig. 3. — Lithomantis carbonarius, H. Wooclw. Coal-measures : Scotland. 

 One-third less than nat. size. 



In his great work on the "Histoire des Insectes Fossiles des 

 temps Primaires " (1893), M. Charles Brongniart has figured and 



1 Geol. Mag., 1903, p. 524. 



