14 FOSSIL INSECTS OF THE BRITISH COAL MEASURES. 



Class I -PTERYGOGENEA, Brauer. 



( >rdiT. PAI,.I:<>DICTTOPTERA, Goldeuberg. 



Families. Dictyoneuridse, Megaptilidse, Hypermegethidae, Lithomantida>, Heolidse, 



FouqueidfE, Spilapteridse, Lamproptilidee, Polycreagridse, Paolidu--. 

 Order. MIXOTERMITOIDEA, Haudlirseh. 

 Order. RECULOIDEA. Handlirsch. 

 Order. PROTORTHOPTERA, Handlirsch. 



Families. Spanioderidse, Ischnoneuridse, Caloneuridee, Sthenaropodidse, (.Edisclmdse, 



Geraridse, Cacurgidse. 

 Order. ORTHOPTERA, Olivier. 



Sub-order. Locustoidea, Leach. 

 Sub-order. Acridioidea, Haudl. 

 Order. PHASMOIDEA, Leach. 

 Order. DERMAPTERA, De Geer. 

 Order. DIPLOGLOXSATA, De Saussure. 

 Order. THYSANOPTEKA, II a lid a v. 

 Order. PROTOBLATTOIDEA, Haudlirseli. 



Families. Stenoneuridee, Protophasmidse, Eoblattidse, Oryctoblattinidie, ^-Etopblebidse, 



Cheliphlebidse, Eucseuidse. 

 On.ler. BLATTOIDEA, Hamllirsdi. 



Families. Spiloblattinidse, Mvlacridse, Poroblattiuidse, Neorthroblattinidse, Mesobla.t- 

 tiniihi'. Pseudomylacridee, Dictyomylacridse, Neomylacridse, Pteridoiuv- 

 lacridae, Idiomvlacridte, Diechoblattinidse, Proteremidse. 

 Order.- MANTOIDEA, Handlirscli. 



Genus. PaJiconwiilif. Bui ton. 

 Order. SYPHAROPTEROIUEA, Handlirsch. 

 Order. HAPALOPTEROIDEA. Handlirsch. 

 Order. PROTOEPHEMEROIDEA, Handlirsch. 

 Order. PROTODONATA, Broiitjiiiarl . 

 Order. MEGASECOPTERA, Brongniart. 

 Order. PROTOHEMIPTERA, Handlirsch. 



The publication of Handlirsch' s great work, 'Die Fossilen Insekten/ lOOil 

 T.HI8, marked an important jilia.se in the history of the stmlv uf fossil inserts. 

 Hamllirseli surveyed the whole field of fossil entomology, and brou>'lit the "-real 



/ O / ' O O 



bulk of the known forms under abruad classification. The Order Palaeodictyoptera 

 was much extended, defined, and made to include a lar^e series of families, 

 several of which, however, are clearly widely divergent in type. This 

 was soon recognised hy oilier workers, ;is doubtless by Handlirsch himself, 

 who may have considered it wiser to extend Goldenberg's order, even to 

 tin 1 inclusion of forms not definitely related, rather than to formulate a new 

 classification the components of which could not be rigidly defined. Knowing 

 t.hal the field ol research was rapidly widening, Ilandlirsch exercised a \\IM- 

 iv-tramt in not adding a new classification, which could only be of a temporary 

 character. Subsequent events have proved the wisdom of Ins action. Since 

 1'JOS, (lie study of fossil insects has attracted more students, new localities and 



