270 POPULAR ENTOMOLOGY. 



TipuUd(2 are uncommon; the Order Neiiroptera presents 

 specimens of the family Thryganidce, and a species of Heme- 

 robius, with a few others. Amongst Bictyoptera have been 

 observed individuals of the genus Ephemera. In Ortkoptera 

 the Blatticlm are the most numerous, some small AcJietidce, 

 a few larger Grasshoppers, and Locusts. 



Fossil insects have been also discovered in recent forma- 

 tions, of which Marcel de Serres has given the most com- 

 plete list. According to him, they were found in calcareous 

 marl, which separates the several strata of gypsum in the 

 quarries of Aix in Provence ; they are accompanied by im- 

 pressions of plants, and are chiefly those insects which live 

 in a sandy soil ; their colour is gone, as they are of a uni- 

 form brown or black. The list includes specimens of the 

 Beetle, Ichneumon, Ant, Butterfly (very rare). My, Dragon- 

 fly, Earwig, Grasshopper, Cricket, and many others whose 

 names are less familiar : these will suffice to give the geo- 

 logical student a slight idea of the insect world in ages long 

 since passed away. 



These, and many other particulars given in this little 

 volume, are not intended to satisfy, but to excite the curiosity 

 of the young naturalist, and induce him to apply for infor- 

 mation to other sources; but it may be hoped that they 



