2628 Insects. 



Eudorea coarctata. Five, on the face of a rock at Arthur's Seat, September 13. 

 I have had this species sent me from Exmouth, where it occurs in plenty on the 

 cliffs. 



Aphomia colonella. Two females, at light, August 7 and 21. This sex is much 

 the commoner with me. 



Achrcea grisella. Thirty-four, bred from a piece of honeycomb that was sent me 

 from Sheffield : the first made its appearance on the 21st of June, and they continued 

 to come out till the middle of August. I have now a number of the larvae feeding. 



Nephopteryx roborella. Two males, at light, August 7 and 22. 



Pempelia dilutella. Two males and one female, at Mickleham, on the downs, 

 July 6, 7 and 9. The female is the obscura of my Catalogue, which is not the adorna- 

 tella, Z. The species allied to this resemble one another so closely that I think I 

 cannot do better than annex the distinguishing characters and habitats of each, as 

 given by Zeller in his monograph of the group. I may thereby enable some entomo- 

 logists to detect in their collections one or more of the species which are at present 

 unknown to us as British. 



Pempelia obductella. Allied to the five following species, and distinguished among 

 them by its dark chestnut-brown anterior wings, — being lighter only on the costa and 

 inner margin, — and by its hinder fascia, which arises far below the costa, and near 

 the inner margin is broadly interrupted : adornatella is much paler, and has either a 

 complete second fascia or it begins distinctly on the costa, and has always two quite 

 distinct black middle spots, whereas in obductella the upper is indistinct and small, 

 or generally wanting: subornatella has, besides many other differences, a fascia- 

 formed, whitish, transverse cloud, between the base and the first fascia. The larva 

 lives up to the beginning of June, in the united upper leaves of Mentha arvensis, 

 from which, on disturbance, it falls to the earth. It changes to a pupa in a white 

 cocoon, between green or dry leaves. After fifteen days the perfect insect appears, 

 and is found up to the middle of August. Schlager states that the larva feeds in 

 June, between the leaves of the young stems of marjoram {Origanum vulgare). 



Pempelia thymiella. Closely allied to the four following species, but immediately 

 recognized by the upper of the two black spots being prolonged beyond the middle to 

 a black streak : it approximates to subornatella in that, before the first fascia, the 

 whitish colour of the costa is carried fascia-form towards the inner margin, though 

 not so distinctly ; but subornatella has two black spots on the white ground, and the 

 second fascia margined with brownish yellow on both sides : nearer still to it stands 

 P. sororiella, but yet differs from it by the more slaty gray colour of the disk of the 

 anterior wings, the want of the pale fascia-formed cloud before the first fascia, the 

 more rounded form of the upper middle spot, and the usually very indistinct line of 

 spots before the hinder margin : ornatella, with its first fascia several times broadly 

 interrupted, and the much darker adornatella, with its angulated second fascia, are 

 less closely allied to thymiella. Zeller discovered this species near Syracuse, June 

 16th, on a species of thyme: he found silky cocoons between the leaves and stems of 

 the thyme, similar to the cocoons generally formed by the larva? of the Phycideae : 

 hence he concludes that the larvae feed on that plant. 



Pempelia sororiella. Differs from the preceding, which it resembles in size, in its 

 narrower wings, darker colour, angulated first fascia, the form of the two middle 

 spots, faint row of spots before the hinder margin, &c. : differs from ornatella in its 

 being quite of a different colour, and in the fineness and completeness of the fasciae: 



