130 



FOSSIL INSECTS FROM COMMENTRY, FRANCE, 



constant in character, differing little right through from the 

 Permian to recent times) is radically different from that of 



Text-fig.3. 

 a, Forewing of Permochorista mitcheUi Tillyard, (restoration, with all 

 the cross- veins omitted); { x 4). Permian of Newcastle, N.S.W. h, Fore- 

 wing of Sycopteron symmetricnm Bolton, with his naming of the veins; 

 ( X 7j). Upper Carboniferous of Commentry. From Bolton's PL ii., fig.2. 

 c. Head and thorax of same, from the author's same figure; (x7f). d, 

 Forewing of Amphientomum paradoxnm Br. ;(xl5). Oligocene, Baltic 

 Amber. From Enderlein. In b, the dotted vein x indicates the probable 

 position of the basal piece of Rs, not shown in Bolton's fig.2, but appa- 

 i-ently slightly indicated in his fig. 1 (photograph). 



Sycopteron^ this latter being of a much simpler type, which does 

 not occur in the Order Mecoptera at all. The resemblance is 



