10^5 



I May. 



The imago, from head to the tip of the wings, measures somewhat over 2 mm., 

 and structurally agrees so well with the two known species of the genus, that I should 

 not have ventured to bring it forward as new, were it not 

 for the beautiful grey markings of the narrower upper wings. 

 These markings, which distinguish the insect at a glance, 

 consist of four broad transverse grey bands, and a longitu- 

 dinal band running from the outermost to the margin a 

 little below the apex. On the upper half of the wing (i. e., 

 above the central nervure) the bauds are nearly straight and 

 about equidistant, but they mostly enlarge about the middle 

 of the wing, the third and fourth being joined together by 

 the inward prolongation of the longitudinal band. The 

 third band is interrupted below its middle, and its lower part is joined to the second 

 band, of which it appears an oblique branch. The true prolongation of the second 

 band bends obliquely inwards, and is joined at one point to the first band. The 

 second band is also joined to the first by a thin process in the region of the central 

 nervure. For the rest, the insect is white, with the abdomen slightly yellowish. 

 The larva is grey, with white secretion. The antennse, legs, venation, glands of 

 larva, &c., seem to be practically as in A. anona, and need not, therefore, be described. 



Institute of Jamaica : 



March, 1893. 



ON THE EMPLOYMENT OF AESENIC AS A PRESERVATIVE IN 

 COLLECTIONS OF INSECTS. 



BY ROBERT McLACHLAN, F. R. S., &c. 



The following remarks were called forth by a perusal of the 

 chapter on " Museum Pests " in Prof. Riley's " Instructions," which 

 were noticed in our No. for October, 1892. 



The collector of British Insects who has a supply of the best 

 English-made Cabinets ("little known abroad), the drawers of which 

 are fitted with " camphor cells," has little to fear if the cells are 

 periodically filled with camphor or flake naphthaline, and in course of 

 time the drawers become so saturated, especially if camphor is used, 

 as to require little attention. My own collection of British Lepid- 

 opiera is contained in two such cabinets, probably over 60 years old, 

 so thoroughly " camphored," that I believe (though I do not act 

 implicitly on the belief) they require no further supplies of the pre- 

 servative. But camphor has its disadvantages. It undoubtedly (how, 

 1 think, has never been explained) tends to the development of 

 " grease," and it becomes deposited on, and clogs, the parts where 

 minute structural characters require to be examined. Latterly camphor 

 has somewhat gone out of fashion, and naphthaline (which is more 

 volatile) often reigns in its stead. 



