1885.] 13 



I think, been noticed in South America. St. Paul's rock may almost be left out of 

 consideration. I incline, therefore, to the Cape Verdes. The insects seized by some 

 migratory instinct, or blown out to sea, would get caught in a strong N.E. trade 

 wind, and be carried by it precisely to the position where they were found. It 

 might be asked why, having got so far, are they not carried to South America ? 

 The reply is, that in the remaining distance they would get caught by the S.E. trade 

 wind, and be driven back. After this experience in the Mid-Atlantic, is it surprising 

 that stragglers of this pretty moth occasionally visit our islands ? 



In the collection of the British Museum there is a specimen of D. pulcJiella 

 from the voyage of the " Rattlesnake," indicated as having been taken at sea in lat. 

 6° N., long. 22^ W. In the British Museum Catalogue by the late F. Walker, it is 

 queried as from Madeira, but the position on the map renders the Cape Yerdes (or 

 even the west coast of Africa) more probable. — R. McLachlan, Lewisham, 

 London : May 9th, 1885. 



CJiauliodus insecurellus hredfrom Thesium humifusum from the Isle of Wight. 

 — The announcements (Ent. Mo. Mag., xxi, 238, 255) that this species had been 

 reared by Mons. A. Constant from larvse found in Grascony must have prepared the 

 readers of the Ent. Mo. Mag. to expeet that Mr. Stainton's surmise that its larva 

 feeds in this country on Thesium humifusum would shortly be confirmed. This I 

 am now able to do. 



Towards the end of May, 1884, I took a female of this species in the Isle of 

 Wight. On cutting a tuft of the food plant on the 11th inst. in the same locality, 

 I found among its branches two pupae in the netted cocoons so characteristic of the 

 genus Chauliodus, and in the course of the morning took several others. From 

 these pupae a few specimens of Ch. insecurellus have since emerged. I noticed in 

 one of the cocoons a larva whose markings did not seem to have changed much, but 

 hoping to find the feeding larvae later in the year, did not take a description of it. 

 The imago when at rest looks curiously like that of Eupoecilia anthemidana. — W. H. 

 B. Fletchee, Fairlawn, Worthing : May 17th, 1885. 



[I gather from the above that this species, like its congener Ch. chcBrophyllellus , 

 is double-brooded, but with this great difference in the habit of the two species, that 

 whereas Ch. chcerophyllellus emerges late in autumn and hibernates in the perfect 

 state, Ch. insecurellus would appear to hibernate in the pupa state, or perhaps rather 

 as spun up, but unchanged, larvae. — H. T. S.] 



Bytiscus marginalis found in salt tvater. — On the 11th of this month I captured 

 a female specimen of Bytiscus marginalis, Sturm, swimming in the sea at Glandore. 

 Is it usual for this beetle to frequent the sea ? I never found it in salt water, nor 

 do I see any notice of this peculiarity in the books on Coleoptera I possess. My 

 insect was quite at home in its salt water element, and was making good its escape 

 when taken. I send the beetle. — C. Donovan, Jun., Westview, Glandore, Leap, 

 Co. Cork : May 12th, 1885. 



Cassida chloris, Suffrian. — I am able to corroborate this (Suff., Stett. ent. 



