300 THE ENTOMOLOGIST. 



as soon as its marliiugs are fully developed, the under side of 

 the 2nd segment becomes possessed of a brown-coloured 

 shield, and the ventral surface of the 3rd, 4th and 5th seg- 

 ments is adorned with a little black dot. By the time that it 

 has fully satisfied its appetite, and has arrived at its adult 

 state, the last ecdysis takes place ; its body then becomes 

 whitish yellow ; its head is faintly tinted with brown, and its 

 mouth is tipped with dark brown ; the centre and anal parts 

 of the dorsal vessel only are visible, and of a dark tone. 

 There is a little Tenthredo larva that inhabits the leaves of 

 the buttercup, which also changes to a ]^ale yellow colour 

 when full-fed ; it then emits a most pleasant lemon-scent 

 from its body. The full-fed larva of Fenusa pygmgea is 

 tolerably active, walking along at a shar]) pace: it buries 

 itself in the ground to pass its pupation. The perfect insects 

 are first developed about the end of the month. In June 

 there is another brood of larvae, which lasts through the 

 months of July and August, from which some imagos are 

 developed in the autumn, the greater number remaining 

 quietly in the ground until the following April before they 

 put in an appearance. The parasite of F. pygma^a constructs 

 its cocoon within the blotched leaf. — Charles Healy. 



Entomological Notes, Captures, 8fc. 



Scarcity of White Butterjiies. — During the whole of the 

 present spring and summer, up to this 12th of July, I have 

 seen but three specimens of the small white butterfly (Pieris 

 Rapa^), and not one of the large species (P. Brassicas). This 

 is the more remarkable, as they were so abundant last year 

 as to be a positive nuisance, from the destruction of our cab- 

 bages caused by their caterpillars. I should much like to 

 learn from my readers whether a similar observation has been 

 made elsewhere in the neighbourhood of London, or in any 

 part of the country. — Edward Newman. 



Early Appearance of Colias Edusa. — Many specimens of 

 C, Edusa have been captured here during the last month, 

 and some of theui the finest I ever saw. 1 noticed one early 

 in the month of June, but did not note the day. I have seen 

 at least half a dozen on the wing and eight or nine, captured 



