26 Bolton, ''Mark Stirrup'' Collect (0)1 of Fossil bisects. 



Plate II. 



Syco'pteron symmetrica, gen. et sp. nov. Bolton. 



Fig. I. — Enlarged direct photograph of Sy copter on symvietrica. 

 Mag. 5.47. 



Fig. 2. — Diagrammatic restoration of Sycopteron symmetrica, 

 showing the character of the wing venation. Mag. 

 547- 



Necymylacris Mennieri, n. sp. Bolton. 



P^S- 3- — Direct photograph of insect lying upon matrix. Mag. 

 1.66. 



Fig. 4. — Restoration and venation of right tegmen. Mag. 1.66. 



Fig. 5. — Restoration and venation of left tegmen. Mag. 1.66. 



