50 



mottled than the females. Mr. Robson has gone somewhat 

 fully into these differences of the underside coloration in 

 articles in the Young Nat., vol. ii., pp. 108-110, and the Brit. 

 Nat., vol. ii., p. 194. The distinction between the two broods 

 on tlie upper surface is less striking, but a point of difference 

 that holds good in the majority of instances is the diffusion 

 of the central lobe or tail of the hind-wings with dark brown 

 scales in the second brood. But although the characters 

 referred to may be taken as a general rule for separating 

 the two broods, neither the coloration of the underside, nor 

 the ornamentation of the upperside can be implicitly relied 

 upon for that purpose, as exceptions do occur, of which the 

 female bred on July 23rd is a good example. In this indi- 

 vidual the upper surface somewhat favours the peculiarities 

 of marking of the first brood, but the coloration of the under- 

 side is distinctly that of the second. Possibly the lengthened 

 period of the pupal stage may have been accountable for 

 the great difference between it and the earlier emergences, 

 for, putting aside the cripple that left the pupa on 15th, and 

 whose wings were insufficiently expanded to decide to which 

 form it belonged, there was a difference of sixteen days 

 between the last previous emergence and this one, and during 

 that time the temperature was abnormally low for the time 

 of year, being on the 1 6th, 20° below the average. At any 

 rate, the specimen is an interesting example, a retarded 

 individual, of the earlier emergence of a seasonably dimorphic 

 species, assuming the form of the autumnal brood ; and I 

 have no previous record of a similar result being brought 

 about in so short a time." 



Mr. Barrett said that one of the specimens of D. nana, 

 shown by Mr. Adkin, more closely resembled the supposed 

 Irish examples of compta than anything he had yet seen. 



Mr. Tugwell exhibited a short bred series of Hypsipetes 

 ruberata, Frr., from West Hartlepool, showing considerable 

 variation ; a variety of Melanippe hastata, L., from Abbott's 

 Wood, Sussex, in which the central fascia was reduced to a 

 small spot, and three specimens of Colias edusa, Fb., one a 

 very large male taken in Tilgate Forest, Sussex, in June, 1877, 

 and which Mr. Tugwell said was no doubt an immigrant, a 

 very dark female showing the obliteration of the yellow spots 

 in the black borders of the superior wings, and the third 

 having the hinder wings of a rosy magenta pearly lustre. 



Mr. Henderson exhibited a specimen o{ Deiopeia pulchella, 

 L., taken by himself at Hayling Island, and reported that 

 another specimen had been captured at Havant about the 



