INSECTA, 



77 



No. 128. [451, Cast]. .lEeschna eximia, Hagen. 



This beautiful fossil "Dragou-Fly" was found in the lithographic limestone 

 (Middle Oolite), at Solenhofeu, Bavaria. It is a neuropterus insect of the 

 genus ^schna, which differs from the Libellula proper only in the equal di- 

 vision of the lower lip. The eyes are large and close together, and the wings 

 remain horizontal in a state of repose. In this specimen, the wings, both 

 pairs of which are finely preserved, spread six inches. Size, 7x5. 



No. 129. [452, Cast]. Locusta speciosa, Munst. 



This fossil locust was discov- 

 ered in the lithographic lime- 

 stone (Middle Oolite) at Eich- 

 stadt, Bavaria. Like the Drag- 

 on-Fly above, it was doubtless 

 blown far out from the shore 

 which bordered the marine wa- 

 ters of the old Soleuhofen sea. 

 The calcareous mud at the bot- 

 tom of this sea was of the most 

 impalpable fineness, and en- 

 veloped closely all organisms 

 which became imbedded in it, 

 copying with beautiful exact- 

 ness their most perishable por- 

 tions and most delicate linings. 



Size. 7 .\ 1 



No. 130. Insects. 



From Eocene Shale of Green River, Wyoming. 



