LIST OF LEP1DOPTERA. 183 



as, for example, D. pulchella, L. testudo, JV. cucullina, N. carmelita, N. 

 dodoncea, N. chaonia, N. dictceoides, and C. curtula. It seems difficult to ex- 

 plain the reason or reasons, why the same insect should be rare in one county, 

 and comparatively common in another. Of course it is easy to understand 

 why it should not occur at all in one place, though it does in another. But 

 when it does occur in two counties, the food -plant or tree being equally common 

 in both, why should it be plentiful in one, and rare in the other? Take, for 

 example, N. cucullina. My indefatigable friend, Mr. Crewe, (after, I doubt 

 not, many an hour's hard work,) found this insect in Suffolk. Its food (maple) 

 is common enough there; and if any one would be more likely to find it than 

 another, it would be Mr. C; yet he only beat two larva?. Now, he and I 

 took it commonly in Bucks. How is this to be explained? Take, again, N. 

 dodoncea. During nearly four years' residence in Gloucestershire and Bucks., 

 I could not discover, by digging, beating, etc., more than about twelve speci- 

 mens in both counties together; yet in Suffolk I took upwards of two hundred 

 pupse in one week! I should be very glad to receive some information or 

 suggestions on this point. But to return. I will just give in figures the 

 numbers alluded to above, and then for the Noctuce, concerning which, how- 

 ever, my own personal information is comparatively limited. 



C Rhopalocera 65 ") 47 



ritish \ 



British < Sphingida? 34 Found in Suffolk > 21 



^ Bombyces 94 J 69 



193 137 



Paet II. — Heteeocera. Division III. — Nocture. 



The arrangement of M. Guenee is followed in this list. 



1. T. derasa. — Not uncommon at sugar at Brandeston. Larva twice beaten 

 from hawthorn, but not bred. It is a very shy insect. 



N.B. — Some years ago I used to take this insect in my grounds at sugar, 

 but I have not met with it at all during the last three or four years. I 

 have bred it from larvae found on hazel. (B.) 



I have taken the pretty fulvous-white spotted larva of this insect upon 

 bramble as late as the first week in November. The perfect insect appeared 

 May 21st. I have no doubt that it is double-brooded, as I have taken the 

 moth throughout the month of August. (C.) 



2. T. batis. — Rarer than the preceding, though occasionally taken at sugar. 

 I used to meet with the larvse in profusion in Bucks, feeding upon brambles, 

 in the dense portions of the woods surrounding my house, but it seems very 

 subject to ichneumons. The chrysalis is very singular in its appearance, and 

 is enclosed in a weak web. 



N.B. — Taken, but not commonly, at sugar in the woods round Stowmarket. 

 (B.) 



As shy at sugar as its congener. It never seems to get intoxicated, and 

 no matter how potent the liquor, or how protracted the bout, it bolts off with 

 the utmost activity upon the approach of the lantern and pill-box. I have 

 taken the larva several times upon raspberry. (C.) 



