161 



in a splendid state of preservation. One-third of tho entire 

 collection are Libellulcc, another third consists of Ort/wptna (in- 

 cluding some gigantic Locustce) and Hemiptna (especially giiiantic 

 species of Bdonloma, Fi/golampas, and N'-pa), and the I'emaining 

 third consists of Colnnptera, Hi/iwnop'era, and Dlptera. Out of 

 450 specimens of fossil insects in the Munich collection, 150 are 

 Neuroptera, and out of these 13a belong to the Odonata. Dr. 

 Hagen says tliat of those not Odonata,, six only (comprising four 

 species) belong to the Neaiopfera as restricted by Erichson, A'iz., 

 one species of Corydalin, one Chri/sipa, a large Apochri/sa, and a 

 beautiful Njimphes. The last two genera, which do not seem 

 very remote from Chnjsopa, are now found only in the Southern 

 Hemisphere. Nijmphes is almost exclusively an Australian genus. 

 The Odonata, continues Dr. Hagen, comprise the following, viz.: — 



Libellulina . . . ... ... ... 4 species. 



^.schnina ... ... ... ... 1 ,, 



Gomphina 7 ,, 



Calopterygina ... ... ... 11 ,, 



Agrioniana ... ... ... ... 4 ,, 



The Gomphidce are said to belong principally to species which 



come near tho genera Petalia, Pheaes, and Fetalura, of which a 



few species occur at the present day in Chili and Australia. . The 



fossil Gomphina of Solenhofen are generally ver}'- large, and some 



are truly gigantic, 4 inches in length, with an expanse of wings of 



7^ inches. Of the Calopterygina, the group Ileterophelbia contains 



some of the most gigantic Neuroptera, two of them belong to the 



largest known Odonata, having an expanse of wing of 7^-8 inches, 



and bodies 3;^-4 inches in length. According to M. Oustalet, a 



number of specimens from Solenhofen, preserved in the Museum 



Tyler at Haarlem, have recently been described by Herr Weyen- 



bergh, jun., who has distinguished 74 species, as follows : — 



Of the Coleoptera .. ... 26 species. 



,, Diptera 5 ,, 



,, Orthoptera 10 ,, 



J, Neuroptera ... ... 42 ,, 



,, Lepidoptera ... ... 1 ,, 



74 



From a study of the fossil insects from this formation and a com- 



