ERRATA. 



Pao-e 111, line 4- from bottom, for " Dryocoetes" read " Dryocsetes." 



227, „ 1 „ bottom of table, for "Entom., XXVI, p. 327" read 



" Entom., XXIX, p. 315." 



241, „ 16 „ top, for " Sideria " read " Siderea." 



24l , 9 „ bottom, for " Mimxscoptilus " read " Mimeseoptilus," 

 and for "bipunctidactyla" read " bipunctidactylus." 



EXPLANATION OF PLATES. 



Plate I. — Larvae of Agriades damon and Plebeiw argyrognomon (see 



pp. 22-29). 



„ II-VII. — Larva-skins of Agriades damon, Plebeius argyrognomon, and 

 P. argus (see pp. 22-29). 



„ VIII. — Agrion ornatum, Selys (see p. 57). 



„ IX-X. — iEdeagus of the British species of Gyrinus (see pp. 128, 138). 



„ XL — Oreopsyche pyrenaella, H.S. (see pp. 237-240). 



„ XII. — Pseudonympha cassius, P. detecta (n. sp.), and P. vigilans 



(see pp. 281-2). 



Portraits— Past Editors of the Entomologist's Monthly Magazine (see p. 125). 



Sketch-map — Shewing distribution of Danaida plexippns (see p. 181). 



