12 FOSSIL 1XSKCTS OF THE B1UTISH COAL MEASl'l.'KS. 



Further discoveries will doubtless do niueli to eliminate these difficulties, but 

 present knowledge is such that recent entomology helps very little, and the 

 classification of Paheo/.oie inserts must lie largely bused on the known fossils, 

 realism^ that many of the intermediate forms are yet unlcnown. 



The classifications of various authors vary widely, and even the broad general 

 facts of relationship are still uncertain. The earliest attempt at a classification 

 of fossil insects appears to have been that of (Soldenberg ( 1 S73- -1877, 'Fauna 

 Saraepontana Fossilis : Die Fossilen Thiere aus der Steinkohlenformation von 

 Saarbriicken.') lie recognised a new Order, Palseodictyoptera, for the inclusion 

 of fossil insects differing in structure and the shape of the wings from 

 living representatives of the Orders Xeuroptera and Orthoptera, while also 

 possessing characters which seem to link the two orders together. He did 

 not define the order, but arranged it with the other orders as follows: 



Order. PAL^EODICTTOPTEEA, Gulden! >. 



Genera. Dicti/mii'in-n, Goldrnb. ; Engsri-nii. Ildhrn; Mhin/iti, Puna ; Ili.'iiirriflin, Puna; 



Hdplophlebium, Seudder. 

 Order. ORTHOPTERA. 



Sub-order. Orthoptera Pseud". Neiiroptera. 



Genera. Tenm.-, Gulden!'. ; Tenititiiliiiiii, Guldenlp. 

 Sub-order. Orthoptera vera. 



Genus. Blattiiiti, Gerinar. 

 Order. EHYNCHOTA. 



Sub-order. Homoptera. 



Genus. Fii!/j<>riiiu, Goldeub. 



Seudder (1887, article ' ; lusecta," ' Trait c de Palseontologie,' by Karl von 

 Zittel, translated by Dr. Charles Barrois, vol. ii, ' Palaeozoologie,' pp. 7H> 833), in 

 his latest classification, considerably extended that of (loldenlierg, while retaining 

 the primitive group of the 1'aheodictyoptera. His complete arrangement is as 

 follows : 



A. PAL/EODICTYOPTERA, 



OBTHOPTEROIUKA. Snulder. 



Family. Palseoblattariae, Si-udder. 

 Sul-faniily. Mylarridic, Seudder. 



Genera. Mylacris, Scd. ; PremyJacris, Srd. ; Paramylacris, Bed. ; Lithomylacris, 



Si'd. ; JKecymylacris, Seil. 

 Sill -iainilv. Blatt inari.i', Srudder. 



'li'iiera. Etiililiil/iini, Sed . S/ii/,ililiilliiin, Sed. ; .li'i-liinitj/Hi-i-is. Scd. ; Anflirtn-n- 

 blattina, Bed . Gerablattina, Scd. ; Hermatoblattina,Scd.; 



liim. Scd.; Oi-i/r/iilil.illiiht. S -d.; ri'lrnlil.ittimi. Sed. ; rni-nl 



Family. Protophasmidae, I'lnm^. 



Genera. TitanopJiasma, Mron^. ; liil/nn-iirii. Sed.: /'/r7//n//riM. < ioldenli. ; 

 riilinjili'iiiia, Scd ; ArcJucojjtilua, SIM!.; ri-iilnjilnmiiiii, ]!nin^. ; lin'ijrriii. 

 dc liiurc; Meganeura, l!i'.>n^.; .l''.<l<r<iiiliaiiut. Sed. : Goldenbergia, 

 S<-d. ; llii^ln[ilil<-hinni, Sed. ; 1'iiulin, Siuiili; Archegogryllus, Sed. 



