Charles Brongniart — Fossil Insects of the Primarij Rocls. 487 



and the antennee are more slender, the wings are shorter and not so 

 narrow ; the nervures are adruirably surrounded by coloured bands. 

 See Galoneura Daivsonii (Plate XII. Fig. 2). 



Macroplilebium Hollebeni of Goldenberg goes into this family for 

 the present. All these insects may be regarded as the ancestral 

 type of the Orthoptera-Saltatoria of the present day. 



I propose to form the order Neurorthopteka, to include two sub- 

 orders — that of Neurorthoptera properly so called, and that of 

 Palseodictyoptera (Goldenberg). 



The first sub-order will comprise — 



1. The family of the Protophasmida (mihi), represented by the 

 genera Frotophasma (mihi), Lithophasma, which I create for a wing 

 figured by Goldenberg under the name of Gryllacris Uthantraca, 



, and which afterwards Scudder had placed in the genus Lithosialis ; 

 lastly, the genus Titanophasma (mihi), of which the body only is 

 known to us, a gigantic body measuring 28 centimetres in length ; 

 also the genus Archegogrylhis (A. priscus, Scudder). 



2. The family of the Sthenaropterida, which includes Meganeura 

 Monyi, a wing measuring 33 centimetres in length — I had named it 

 Dictyoneitra Monyi; Archceoplilus ingens (Scudder), and A. Lucasi 

 (mihi), wings which must have attained 25 to 30 centimetres in 

 length. 



Then Megatlientomum pustulatum of Goldenberg will take its place 

 in this family; two insects that Goldenberg had named Acridites 

 formosus and A. carbonatus will also come into the genus Mega- 

 thentojnum. 



In the first sub-order of the Neurorthoptera I have placed some 

 insects of large size, whose wings have strong nervures united by a 

 rather loose reticulation, insects which have some likeness to our 

 living Phasmians by the form of the body, but which are much 

 removed from them by the neuration of their wings. We must 

 consider the Phasmians as much modified descendants of these 

 ancient types. 



The second sub-order has been created by Goldenberg, and has 

 been adopted by other authors. This savant, nevertheless, had 

 elevated it to the rank of an order. It contains a series of insects 

 of rather large size, which seem to have completely disappeared from 

 our present fauna. 



The first family, that of the Stenodictyopterida, is composed of 

 insects which have a thick and short, but broad body, short legs of 

 moderate length. But that which rightly characterizes them, and 

 makes of them a sufficiently homogeneous group, is the reticulation 

 of the wings. The latter are elongate, rather narrow, traversed by 

 rather straight nervures united by a very regular network of great 

 fineness, reminding one a little of the network of the wings of 

 our living Odonata. 



This family contains six genera, namely : — 



1. The genus Eugereon of Goldenberg [Eugereon Boechingii, 

 Gold., E. Heeri, mihi) is characterized by a short and thick but broad 

 body ; the head is small, the prothorax is scarcely broader than the 



