NOTES AND OBSERVATIONS. 293 



vol, i. pp. 174-175) ; while Riihl gives, in addition to thistle, nettle, 

 and milfoil, Lapjm officinalis (burdock), Gnaphaliuvi and Parietaria, 

 Filaffo arvensis, Noumea pull a, and. in the Lybian Desert, a kind of 

 Silybnm. M. Andre, in his recently published ' Catalogue of Butter- 

 flies of the Department of Saone-et-Loire,' mentions Helichrijsum 

 arenaiinm; M. Guenee cites Eryngiwn (' Lepid. of Eure-et-Loir ') ; 

 M. Frionnet (Haute -Marne), artichoke. For Scandinavia, Professor 

 C. Aurivillius gives mallow, and "several other plants" (names not 

 given), besides nettles and thistles of various species. — H. Rowland- 

 Brown ; Harrow Weald, October 19th, 1907. 



On the Discovery of the Larva of Trichoptilus paludum, Zell. — 

 Reading the Rev. Pickard-Cambridge's note on the discovery of the 

 food-plant of T. paluchim in the August number of the ' Entomo- 

 logist,' I see he states that larvae were found in the Esher district 

 by Dr. Chapman through a clue given by Mr. Eustace Bankes, 

 that Drosseni was the food-plant of this insect. I should like, 

 however, to state that I captured a specimen of T. 'paludnm in the 

 Esher district on August 27th, 1904, which I believe is the first record 

 for Surrey, as stated in the November number of the ' Entomologist ' for 

 that year. I may suggest that it was by reason of this capture that 

 Dr. Ciiapman and Mr. South visited the spot on the 31st May, 1905, 

 and obtained larvae there. — Arthur J. Scollick ; 8, Mayfield Road, 

 Wimbledon, S.W., November, 1907. 



The Lepidoptera of Gibraltar. — Re Mr. Rowland-Brown's note 

 on my list of the Lepidoptera of the Straits, I find that I have made 

 no mistake about the months. I cannot account for the difference 

 between my dates and tliose of other observers unless atmospheric 

 conditions which, according to the Spaniards, had greatly affected the 

 vegetation, had also affected the insects. But as this, to me, seems 

 hardly probable, I think that on a fuller examination the insects I men- 

 tion will be found there, on or about the dates on which I found them. As 

 to the names, all my specimens were identified by comparison with 

 others, and 1 think are all correct, but I should be very pleased to send 

 Mr. Rowland-Brown any which he would care to verify. I might here 

 state that a j^reat many of my observations were made, 1 believe, much 

 further afield than those of Commander Walljer and most other 

 Euglish entomologists, notably at Gaucin and Benaocaz. — F. W. 

 SowERBY, R.N. ; Navigation School, Portsmouth. 



" Homing" Instincts (?) of Hybernating Insects. — Early in Octo- 

 ber, 1907, I found, in a room which I use as a lumber-room, a 

 specimen of Gonoptem libatrix. This room is an attic, and has a 

 window (kept open) opening on to one of the sloping sides of the roof. 

 In it I keep empty boxes, picture cases, &c., and also my boxes con- 

 taining larvae and chrysalids. Wishing to observe the movements, if 

 any, of hybernating moths, I put the G. libatrix into a gauze-covered 

 box. Shortly afterwards I received definite orders to move to Alder- 

 shot on a certain date. Not wishing to take the moth with me, I 

 waited until there came a warm moist evening, when I took it down 

 stairs (two flights) and turned it out into my garden, which is on the 

 opposite side of the house to the attic window. Some ten days after 



