184 LIST OF LEPIDOPTERA. 



3. C. duplaris. — Once or twice beaten from oaks, in the neighbourhood of 

 the Duke of Hamilton's park at Easton. 



N.B. — This insect is common in the woods near Stowmarket. (B.) 

 I have very frequently bred this insect from larvae beaten in September 

 and October, off birch and hazel. It is a dusky olive colour on the back, 

 with a yellow head, and is semi-transparent. It so closely resembles the larva 

 of a Tenthredo, that for a year or two I used always to throw it away when 

 I beat it, under the idea that it was one of "those vile saw-flies." (C.) 



4. C. diluta. — I have taken this insect in the woods near Stowmarket, both 

 the larva and imago. (B.) 



The larva of this insect is pale green, with a brown head, very similar to 

 that of C. diffinis. It is full-fed the beginning of June, and feeds on oak. 

 (C.) 



5. C. or. — I did not meet with this species, and I only mention it for the 

 purpose of saying, that I think the larva prefers aspen to poplar, the food 

 given in Stainton's "Manual." 



N.B. — Not uncommon in the woods near Stowmarket. (B.) 

 The singular, flat-headed, depressed-looking larva of this insect, is not at all 

 uncommon in August, on aspen, in the woods round Ipswich and Stowmarket. 

 It spins two leaves together, where it lives, only coming out to feed. When 

 full-fed it constructs a slight earthen cocoon, similar to that of C. ridens. It 

 is so transparent that its intestinal arrangement is plainly visible. "When young 

 it so closely resembles the larva of D. fagella, that any tyro might easily 

 confound them, especially as they occur at the same time. I have beaten it 

 in Herts, as late as the end of October. I have once or twice taken it upon 

 the Lombardy poplar; but, as Mr. Greene remarks, aspen is undoubtedly its 

 favourite food. The pupa is almost precisely similar to that of C. ocularis, 

 but not so robust. The moth is very shy at sugar, and requires nimble 

 fingers to box. (C.) 



6. C. ocularis. — Considering the almost universal rarity of this beautiful in- 

 sect, I may consider myself fortunate in having bred nine splendid specimens, 

 all taken by digging. The larva is well described in the "Manual," but I 

 should decidedly give poplar as its food, though it may very possibly feed 

 on aspen also, though I never met with it on that tree. All my pupse were 

 taken at the roots of what is called, I believe, the Lombardy poplar. Like 

 most, if not all the species in this genus, the larva spins two leaves close 

 together, and resides between them during the day-time, coming out to feed 

 during the night. It is almost useless, therefore, to look for it by beating. 

 By looking at the leaves against the sky, it may sometimes be detected, 

 (if there at all,) and should there be any shrubs scattered about, all the leaves 

 glued together should be carefully opened and examined. It is also well 

 worthy of notice, that the little bits of decayed leaves hanging curled up on 

 the stalks are favourite hiding or resting-places with the larva of this and the 

 allied species. They should therefore not be omitted by the tyro anxious to 

 see this fine insect in his collection. The perfect insect seems fond of sugar, 

 (I have taken it twice,) but is very shy and timid. 



N.B. — I bred a specimen of this insect, June 8th., 1857, from a pupa found 



