APPENDIX. 571 



me with a letter, ten or twelve Curculiones, which I am not able to name from 

 E. B. Perhaps some of them are new, but I have no duplicates. 



" Before I found the true Dytiscus recurvus, I had called, though in great 

 doubt, No. 4. by that name. As it is not that, I see nothing in E. B. which it 

 can he. D. lineatus I have: and though its linece are somewhat like those of 

 that, yet the two-lobed spot on its thorax, and ferruginous abdomen, suffi- 

 ciently distinguish it. 



"No. 5. is doubtless D- flexuosus. It is not unfrequent here; and as it 

 appears from E. B. not very common, I send a couple of specimens. 



" Mr. Marsham tells me that he has not Hydrophilus Cicindeloides, and as this 

 may be the case with you, I send a specimen. It is not very uncommon here. 

 Is not this Elophorus elongatus of Fabricius, with the description of which it 

 appears to me wholly to agree? 



" I send a specimen of Carabus purpuro-cceruleus, which, from there being a 

 local habitat to it in E. B. , I conclude rare. I have found five or six specimens 

 of it in a particular clayey bank. 



" No. 6. is so much like what I call Carabus littoralis, except in wanting the 

 maculae at the base of the elytra, that it can hardly be considered other than a 

 variety of that ; yet I never found it in company with C. Uttoralis, nor, indeed, 

 anywhere but on the shore of the Humber, where it is not very common, and 

 I never found a single specimen of C. littoralis near to this habitat. 



" No. 7. is a small Caralms, which I also find on the banks of the Humber, 

 and only there. Its truncated and smooth, or most obsoletely striated elytra, 

 so obviously characterise it, that I have little doubt of its being undescribed in 

 E. B. 



" No. 8. is so exactly like Carabus marginatus, except in wanting its testa- 

 ceous margin, that I imagine it is merely a variety of that. 



" No. 9. (1, 2, 3.), though differing considerably in colour, are, as you will at 

 once perceive, the same insect, which is common under clods of earth on the 

 shores of the Humber, in company with a species of Oniscus. Elsewhere I have 

 not seen it. I at first imagined the testaceous specimens (No. 1.), which are 

 most numerous, had been but lately disclosed from the chrysalis ; and to deter- 

 mine this, I fed and kept alive one of them for a month, but at the end of that 

 period its colour was not altered. The punctulate pilose surface of these 

 Carabi furnish characteristics not very common in this genus ; yet I am uncer- 

 tain whether any one of the varieties be described in E. B. No. 2. agrees, in 

 colour and several other respects, with C. echinatus, but its elytra are not 

 * punctato-striate,' but striate, with puncta in the interstices. No. 3. would do 

 pretty well for C. punctulatus ; but its feet are not of the same colour as the 

 abdomen, and no mention is made of any pubescence on the surface of that. 

 All the specimens of No. 9. which I have examined, and I have observed 

 many, are furnished with a very good characteristic, independent of colour. 

 They have (like Carabus tibialis) no abbreviated strife next the suture at the base 

 of the elytra. I send several specimens of this for examination: you will at 

 once know whether it is new or not. 



" No. 10. 1 have called Carabus foraminulosus, but with some hesitation, for 

 neither does the colour altogether accord, nor can the strife be called * sub- 

 obsolete/ according to my idea of that term. In its punctulate and sub- 

 pubescent surface, as well as colour, it agrees with the fuscous specimens of 

 No. 9. ; but its greater size, abbreviated stria? next the suture (as is usual in 

 this genus), and shorter impressed line on the thorax, afford sufficient dis- 

 criminations. It inhabits a particular clayey bank, near us, on breaking lumps 

 of which you may often find it in oval holes, in the inside of them, apparently 

 just excluded from the chrysalis. 



"Nos. 11. and 12., though extremely common, I am not able to refer satis- 



