10 FOSSIL INSECTS OF THE BRITISH COAL MEASURES. 



ORTHOPTERA. 



Noiiioiieura (BhiHa'fnrmia, Handl.). 



(a) Ulattoidea. 



Families. llyalnptilida-, Protoperlida-, Favolifllidn'. ( iryrtoMattiniilir. 



(b) Mautoidea. 



Families. Stenont-uritido?, Stenoneuridae, Isi'liuoiifiirida-. 



Heteront'ura. (Equivalent in part to Orfclioptera Cursoria and Orthopteroidea, Haudl.) 

 (</) I'hasmoidea. 



Fa mil v. Sthenaropodidse. 

 (li) IjixMistida 1 . (Equivalent in part to Orthoptera Saltatoria. ) 



Families. (Ediscliiidne, CaKmeuridaj. 



Lameere restricted his research to the French fossil insects, his studies being 

 based on the types described and figured by Brongniart (18'J^, 'Bull. Soc. 

 Industrie, Saint Etienne,' o ser., vii), the collections made by Fayol, and the 

 large series of fossil insects from the Upper Coal Measures (Stephanian) of 

 Comment ry, now preserved in the National Museum of Natural History, Paris. 

 The following remarks mav be made on his classification : 



Ei'HKMKKOiTKKA. The three families forming this division are regarded as 

 closely related, the genus PecguereHa of the Spilapteridse bearing certain characters 

 of the Megasecopteridae, while the family is also linked through the genus 

 Apopappus (which, is taken to supplv a natural transition between the Spilapterjdse) 

 to the genus Triplosoha. 



ODOXATOPTliEA. The family Fonqueidiv is held to differ from the Spilapteridse 

 in that transverse veins are nunierons, close together, and form a network over 

 the inner margin, and in the anal area a feature which brings it nearer to the 

 Protodonata. The family Dictyoneuridas possesses a network of veins extending 

 over the whole wing, as in M!ci-<i<li<:ti/<t. The remaining family, Dictyoptilidse, 

 contains Archsemegaptilus, which I.anicei-e considers differs only from the Dictyo- 

 ncnrida 1 in the fusion of the median and radial veins at the base of the wing. 

 Protinjrlon is considei'eil nearest to the ti'iie Odonata, while Megaiteura and Gilsonia 

 are specialised types. 



RII vxeuoTA. The presence of a rostrum in f,iji-nr,'i-t-n^ </n/ ( /r///>c/v//, and the 

 resemblance of the head and leg of Homoioptera gigantea to the same structures in 

 'ini, are considered sufficient proof of the Protohemipteroid characters of 

 !!*, Homoioptera, and the allied genera Lithoptilus, Megaptilus, Mecynostoma, 

 ArcJissoptilus and Pctvciinegcqjtilns. 



()i(Tiioi''i'i-:i;.\.-- l-ameere regards I landlirsch's group of I'rotorthoptera as an 

 assenil)lage of two I'elated but distinct types, \\hich he classifies under Xomo7ieura 

 and I letcmneura. The genus Stenoneurites is regarded as the connecting link 

 between the Abmtoidea and the ancestors of the Hlattoidea, the genus StenoneilTQ, 

 being also in some measure transitional between StenOHeurites and the l-chno- 

 aeuridse. 



