THE ENTOMOLOGIST. 183 



thorax was quite rounded and smooth : memory, however, as 

 we all know, is very treacherous, and specific differences can 

 never reasonably be deduced therefrom. As far as I ob- 

 served, the beetles confined themselves to the collecting of 

 the pellets of rabbits'-dung, but this single observation 

 cannot, I think, establish the fact of their invariably doing 

 so. There seemed to be no other suitable material at hand 

 for the purpose, and possibly what 1 saw was but an adapta- 

 tion of a means to an end, since, as far as I could judge, the 

 locality, and nature of the soil, &c., were peculiarly suited to 

 the beetles' requirements. The depth of the tunnels excavated 

 by these beetles were of comparatively considerable magni- 

 tude, as I could probe many of them with a pliant stem of the 

 common braken some ten or twelve inches, and, indeed, with 

 the aid of ray knife 1 enlarged some of them to an equal or 

 even greater depth without finding traces of either beetles or 

 pellets. — G. B. Corhin. 



[The beetle found by Mr. Corbin is Typhceus vulgaris. — - 

 Edward Newman.] 



The supposed Potato-hug. — Will you kindly inform nie 

 what the enclosed creatures are ? They were sent to me 

 yesterday from Wimborne, where I am told they are doing 

 some amount of damage to the potato crop, by destroying the 

 haulm. I suppose it is the grub of some beetle, and I believe 

 I have seen similar creatures not unfrequently before, yet I 

 am unable to name it. Of course, everything in any form 

 upon the potato cannot (in the eyes of the grower) be less 

 than the " Colorado potato-bug." — G. B. Corhin. 



[The chrysalides of Coccinella 7-punetata. 1 am quite at 

 a loss to conceive what damage they can do, since in this 

 state they do not feed at all : in the larval and perfect state 

 their food is Aphides, or plant-lice. — Edtvard Newman,] 



G. Harvey. — The beetles are Coccinella septem-punclala : 

 they feed on Aphides. They have no connection with the 

 potato-bug. — Edward Newman. 



W. Macmillan. — The larva is that of Biston hirtaria. 

 The ichneumon, Macrogasler alvearius, so-called from the 

 resemblance of its mass of little cocoons to a honeycomb. — 

 Id. 



Colonizing Glow-worms. — Can you tell me how we can 

 establish a colony of glow-worms at Woodford } There are 



