16 THE ENTOMOLOGIST. 



be a few unfertile females. Having expressed soraewliat 

 reluctantly my opinion, — so adverse to the desired success, — 

 I will state what I believe to be the only plan that can be 

 adopted with any hope of success. In the first place, I 

 should not think of attempting to introduce any surface- 

 building species. I should select two or three of the hardiest 

 ones, — such as Bombus terrestris, B. Lucorum, B. Hortorum, 

 and B. subterranea. In order to make the chance of success 

 as great as possible, I should take care to send only 

 impregnated females : these can now be obtained, all the 

 humble-bees having retired to their winter-quarters. A 

 number of such females were required some years ago for 

 scieniific purposes : a collector was employed, who searched 

 under my own instructions. The result was that he obtained 

 in a few days over fifty females, all in a torpid state. My 

 plan would be to get a number of such torpid bees, and, by 

 some of the best-known means of refrigeration, keep them in 

 a state of torpidity during the voyage. This once accom- 

 plished, success would be certain. Humble-bees survive 

 four or five months of torpidity, and they can now be 

 exported in a much shorter lime than five months. This is 

 the plan I recommended when applied to, and I should 

 certainly not have thought of trying an experiment which I 

 fear will prove a total disappointment. — Frederick SmitJi. 

 [From Ike 'Field:] 



Additions to the List of Macro- Lepidoptera inhabiting 

 Guernsey. — Sesia Megilheformis? — Having noticed that the 

 Sesia mentioned in a previous list (Entom. viii. 30) as 

 Ichneumoniformis seemed somewhat different from the usual 

 type, as figured in Newman's ' British Moths,' I sent it to the 

 late Mr. H. Doubleday, with an enquiry as to whether it had 

 been correctly named. The following was Mr. Doubleday's 

 reply : — " I do not possess a Sesia exactly like the one you 

 sent. It is very closely allied to Ichneumoniformis, but the 

 yellow bands on the abdomen are fewer, and the caudal tuft 

 is not exactly the same. I never saw the Megillaeformis of 

 Hiibner; but Dr. Staudinger gives it as a variety of Ichneu- 

 moniformis, and says there are only three yellow bands on 

 the abdomen." Nonagria geminipuncta. — One specimen 

 taken, flying to the light of my lantern at the Grande Mare, 

 Vazon, on September 1st. Xylina petrificata. — One specimen 

 taken at ivy-bloom, October 14lh. — W. A. Luff; Guernsey. 



