OF INJURIOUS INSECTS. 
13 
to decay, provided the Maggot with good shelter during the winter to 
develop in the following June, and so infest the neighbourhood. Any 
observations as to quantity of Red Maggot in summer, varying with 
shelter provided for it in winter, would be very desirable. 
Sir.ii x giuas. 
12. Sirex gigas. Not uncommon this year. Captured on the 
17th August, at Great Cotes, Lincolnshire (a rare insect in that 
district). 
13. Asilus Crabroniformis. Hornet Fly. Was observed by 
Mr. Parfitt on the 13tli of August, as plentiful, at Prawle-Heads, and 
the adjoining high-lands on the South Devon coast, amongst sheep and 
cattle, always settling on the excreta of the latter; and on the 1st of 
September it was noticeable in a pasture field, near Isleworth, the 
exposure and weather being warm and sunny. 
14. Colias Edusa. Clouded Yellow Butterfly. This—the great 
appearance of the year—is not observed at all in such few localities of 
the North-East of Scotland as we have notes of. It was first seen 
near Dumfries, early in June, but not noticed in any quantity till 
August at the points of observation in Cheshire, Herefordshire, and 
Lincolnshire; whilst across the South of England it was generally 
observable from June till October, the proportion of males and 
females varying much in different localities during August, and 
possibly giving a clue to next year’s amount of appearance; whilst 
