489 
Herr R. Klebs on the Fauna of Amber. 
their respective families Herr Klebs finds himself unable to 
assign about 33 per cent, of the beetles which he has 
examined, in spite of their excellent preservation. Although, 
in consequence of the material differences which they exhibit, 
they can scarcely belong to the families already represented, 
it is nevertheless quite possible that many a representative of 
the missing families may be hidden away among them. Herr 
Klebs cites the genus Lymexilon as an instance of the way 
in which occasionally solitary forms, hitherto unknown as 
Tertiary, suddenly turn up in some numbers. He discovered 
the first amber specimen of Lymexilon in the autumn of 1888 ; 
a year later he had discovered no less than six specimens of 
the genus, comprising at least three different species. Ly- 
mexilon is at the present time an extremely rare genus, which 
lives in rotten oak, and of which only a solitary local species 
has hitherto been found in Europe. 
Of the Neuroptera, the Phryganidge, of which about five 
thousand examples have been discovered, are the most nume- 
rous ; next come the Hemerobiidae, with about fifty specimens, 
the Panorpidae, with twenty-five, and occasional examples of 
Semblidse. 
The Orthoptera are represented by nearly two thousand 
five hundred specimens, the Blattidse being most numerous ; 
next, arranged in order of frequency, come the Lepismidse, 
Gryllidae, Poduridse, Locustidae, Pseudoperlidse, Phasmidie, 
Forficulidse, and lastly the Mantida3. No specimens of 
Campodidae nor Acrididse have as yet been found, though 
possibly specimens of Niceletia and Camjjodea may have been 
included among the larvae. 
Among about one thousand specimens of Pseudoneuroptera 
the Termites are most numerous, numbering about two thirds 
of the whole, while Thripsidse, Psocidae, Perlaridae, Epheme- 
ridae, and Libellulidae are present in about equal numbers, the 
Psocidse being perhaps somewhat more numerous than the 
rest. The Embiidae are very rare. 
The Lepidoptera, to the number of about one thousand 
specimens, are all with one exception Micros, belonging to 
the families Tortricidse, Tineidae, and PsychidaB. The solitary 
Macrolepidopteron, which is one of Herr Klebs’s recent dis- 
coveries, is a tolerably large Arctia . 
The Rhynchota, with about twelve hundred examples, 
exhibit representatives of all the subdivisions, with the excep- 
tion of the Pediculina. Aphididae and Homoptera (Cicadidas) 
are the most numerous ; next come the Hemiptera, and lastly 
the Coccidae. Myriopoda, both Chilopoda and Chilognatha, 
are represented by about one hundred and fifty specimens. 
Ann. & Mag . N % Hist . Ser. 6. VoL vi. 3o 
