PAL^ONTOGRAPH IC AL SOC I ET Y,I9I9. 



Bolton , Insects of Coal Measures. 



PLATE I. 



1.DICTY0NEURA. 2 .ORTHOCOSTA . 3. PTERONIDIA. 

 4.HYPERMEGETHES. 



J W Tutch.er, photo t- j c. r 



F London otere os cop ic Lo. imp. 



