THE BUTTERFLIES. 7 



Species. 

 1775. Fabricius ... .. ... ... 406 



1793- » "47 



1S23. Latreille and Godart ... ... 1S02 



1852. Doubleday and Westwood... ... 3451* 



1871. Kirby 7695 



Since the appearance of my "Synonymic Catalogue of Diur- 

 nal Lepidoptera " in 187 1, enormous progress has been made in 

 the study of Butterflies, which I think I may fairly claim to be 

 in a great measure due to the publication of the above-men- 

 tioned work. But authors differ much in their views as to 

 varieties and species, and a considerable number of absolute 

 synonyms doubtless remain to be eliminated. Hence I cannot 

 attempt to estimate the actual number of species now known 

 to entomologists. It should, however, be remembered that 

 while in some genera the number of known species has been 

 far more than doubled since 187 1, in others the number has 

 remained almost stationary. 



In 18S4-1888 Dr. Staudinger published his " Exotische 

 Tagfalter," an important work in small folio, with 100 coloured 

 plates of Butterflies. His arrangement is that of Doubleday 

 and Westwood, omitting the families Ageronidce, EuryteZidce, 



and Liby thee idee. 



A companion volume, commenced by Dr. Schatz, and com- 

 pleted, after his death, by Dr. Rober, appeared from 1S85 to 

 1S92, and included a most careful revision of all the genera of 

 Butterflies, except the Hesperidce. This is illustrated by 

 diagrams of the neuration of every genus, and generally of the 

 legs, palpi, and antennae also. It is much to be wished that 

 some enterprising publisher would venture to issue these valu- 



* This estimate is too high, including many species named but not de- 

 scribed, and various duplicate entries of sexes, &c. 



