1875.] • 89 



Tlio ground-colour is a ratlier bright grceiiish-yollow, in some specimens yellowish- 

 green ; the head is greyish, -with the checks and mandibles shining black. A very 

 conspicuous purple stripe forms the mcdio-dorsal line, — from the 2nd to Gth segment 

 this stripe appears as composed of round purplish marks joined at the segmental 

 divisions, consequently the stripe is ratlier broad ; on the remaining segments it is 

 much narrower and more uniform, but equally distinct ; the sub-dorsal and spiracidar 

 lines are yellow, but only faintly indicated ; the segmental divisions are also yellow. 

 The ventral surface and prolegs are uniformly dingy green or yellowish, according to 

 the ground of the dorsal surface ; legs black and shining. 



The larvae were found feeding on wild rose, beneath the leaf overlapping the 

 rosebud, eating into the unexpanded bud from the side ; others, however, were found 

 feeding in similar positions at the tips of the young shoots. When full-grown those 

 that have been feeding on the buds afSs themselves to the side of the leaf close by 

 the bud, and draw the leaf and the bud together by means of a few silken threads ; 

 the others draw together in a similar way several leaves at the end of the young shoot. 



The pupa is about' three-eighths to half-an-inch in length ; pale green, — the 

 wing-cases whitish, — the cye-antcnna-and leg-cases, also the edging of the wing-eases, 

 smoky-black. 



On a subsequent visit to the locality (near Rochester) in the middle of July, I 

 found a few of the pupae, from which, in a few days, I reared some beautiful images 

 of this lovely species. The moth first appears at the beginning of July, and continues 

 to emerge throughout the month. — G-eo. T. Poreitt, Huddersfield : August Zrd, 

 1875. 



The cycles of Entomology. — The late Mr. J. F. Stephens had a theory that 

 Entomology, in England at least, ran in cycles ; that is, that for periods of time 

 attention was more devoted to one order of insects than to another. Of this, no 

 one was better qualified than he to judge ; for, being one of the few English Entomo- 

 logists that possessed a collection of all the orders, which he liberally opened on one 

 evening in every week to visitors, he was in a position to see how the current of 

 collecting ran from time to time. He said, that, during a long course of years, the 

 number of Coleopterists and Lepidopterists preponderated by tunis ; that at intervals, 

 Hyraenopterists and Diptcrists appeared, and but rarely a collector of any other 

 order. Since these pleasant and instructive meetings ceased, there have been no 

 private general collections accessible to students, there has been no similar personal 

 guage of the number of collectors or students of the several orders, and we have 

 had to rely for such information upon the record of "The Entomologists' Annual." 

 Judging by this, Coleopterists and Lepidopterists, for some years, ran almost pari 

 passu; now, the ardour of both seems to have abated, the "Annual" itself has 

 ceased to exist, in a great measure, for want of additions to record ; and if the 

 collecting of butterflies and beetles still goes on in Britain, new species are rarely 

 found. It may be there are not many more to be discovered that are new to the 

 country or to science, and considering the number that have been added during the 

 last twenty years, the unknown quantity is not likely to be very great. 



But with respect to other orders, considering the few collectors thereof that 



