NOTES ON THE LARVAL AND PUPAL STAGES IN SOME SESIIDiE. / 



next spring to go more thoroughly into this question. During 

 the first week in April I dug out over twenty that had actually 

 turned into pupae. I am of course quite convinced that the 

 normal period of life-cycle is one year, but I think it is very 

 probable that a few larvfe remain over in larval state till the 

 following spring. 



Sesis andrenceformis. — During the year 1915 I was very lucky 

 with this insect ; it seemed to be the year for them. In some 

 six days I spent on the ground I found over forty good larvae. 

 I forced these in the same manner as in the former year with 

 excellent results. I bred out over thirty moths ; only two were 

 stung. In 1916 I could only give up a few days, but managed 

 to get about thirty full-fed larvae. I was not so fortunate with 

 these, but reared sixteen. My experience during these two years 

 leads me to the conclusion that the life-cycle of S. andrenceformis 

 is always over two years. I found very few larvas had been 

 stung ; in fact, I have only bred out seven flies out of some 

 hundred larvae in three years. 



I regret I was unable to look up any of the other species, but 

 as I am now relieved of my military duties, I may be able to 

 continue my studies next year, when I hope to devote my time 

 to the other species found round here. 



69, Dry Hill Park Koad, 

 Tollbridge, Kent. 



TWO DAYS' COLLECTING IN LANCASHIEE AND 

 CUMBEELAND. 



By Gerard H. Gurney, F.E.S. 



On July 3rd I was granted five days' leave from my military 

 duties at Beading, and determined to maice a dash up to 

 Lancashire in order to spend a day at Witherslack, and then 

 on to the Cumberland mountains for two days' search for 

 Erehia epiphron var. cassiope. The latter quest would I felt 

 be doubtful of success, as although friends iiad given 

 me very lucid descriptions of the sj)ecial locality in which to 

 find cassiope, yet Cumberland is a long wa,y to go to find a 

 buttterfly on a perfectly strange ground, when one only has 

 a limited forty-eight hours to do it in, especially when that 

 butterfly only flies in a few very local spots on a Itirge range 

 of mountains ; moreover, the weather was very unsettled at the 

 time ; in fact, all the fates seemed to point to it being a bit 

 of a wild-goose chance. However, you never know your luck, 

 and as I had got my leave I determined to go, and duly arrived 

 at Grange-over-Sands late in the evening of July 3rd. The 

 following morning luckily was sunny and very warm, and I 

 was' early astir and bicycling the short three miles to 

 Witherslack. It was just two years since I had had a net in my 



