4;io 



PSYCHE. 



[Novenilier iSt^g. 



A COMPARISON OF THE SYSTEM- 

 ATIC DISTRIBUTION OF EURO- 

 PEAN AND NORTH AMERICAN 

 ORTHOPTERA. 



The Davenport academy of natural sci- 

 ences is printing and will shortly issue a 

 synonymic catalogue of our Orthoptera 

 which i have prepared. This offers the first 

 good opportunity for a comparison of the 

 relative representation of the subfamily 

 groups in Europe and the United States, 

 using Brunner's Prodromus as a basis for the 

 European forms. The following tables show 

 the number of species in each subfamily and 

 famil\' that are represented in either coLintry. 



U 



Foificulidae 

 Ectobinae 

 Blattinae 

 Nyctiborinae 

 Periplanetinae 

 Panchlorinae 

 Corydinae 

 Ox^'hyaloinae 

 Panesthinae 



Blaltidae 

 Mantinae 

 Vatinae 

 Empusinae 



Manfidae 



Bacunciilinae 



Anisomorphinae 



Bacillinae 



PUasinidae 

 Tettiginae 

 Mastacinae 

 Tryxalinae 

 Oedipodinae 

 Pyrgomorphinae 

 Pamphaginae 

 Acridiinae 



Acvidiidac 



Phaneropterinae 



Meconominae 



Pseudnphyllinac 



90 



IS4 



Conocephalinae 



Saginae 



Locustinae 



Decticinae 



Callimeninae 



Ephippigerinae 



Iletrodinae 



Gryllacrinae 



Stenopelmatinae 



Locnstidae 



Gryllotalpinae 



Myrmecophilinae 



Gryllinae 



Oecanthinae 



Trigonidiinae 



Eneopterinae 



Gryllidac 



Grand total 



77 



'4 

 S 



(>4 

 856 



471 



These tables bring out clearly the many 

 striking contrasts between the Orthopteran 

 fauna of Europe and the United States. A 

 tew additions to our fauna made since the 

 Catalogue was prepared do not affect the 

 general results Additions to the Em'opeaii 

 fauna since Brunner's Prodromus was pub- 

 lished In 1SS2 have not been taken into 

 account, and the comparison is in so far 

 faiiltv. SaiiiKcl H. Sciddcr. 



REARING LARVAE IN TIN BOXES. 



Almost twenty years ago I became dis- 

 gusted with the impossibility of keeping 

 leaves frosh enough for caterpillars, unless 

 in water or on growing plants. Both these 

 methods are very inconvenient, especially if 

 one travels fi'om one place to another two or 

 three times in a summer. Having kept 

 botanical specimens fresh in tins it natur- 

 ally occurred to me that tin boxes would 

 keep food plants in good condition. The 

 doubt w;is if the larvae vvouhl bear being 

 shut up in close tins. 



Miss Eliot and I tried the experiment with 

 several kinds of caterpillars, and it succeeded 



