248 [Apvii, 



shows what interesting questions offer themselves to our notice on a 

 careful comparison of British and Continental Heterocera. But few, 

 however, have private collections of this kind, and until adequate 

 provision is made in the public museums, little advance will be possible. 



Kingstown, Ireland : 



February, 1887. 



DESCEIPTION OF THE LAEVA OF SCOPARIA RESINEA. 

 BY G. T. POBBITT, F.L.S. 



On the 12th May last, I received from Mr. Eustace E. Bankes a 

 few larvae of a Scoparia, which proved to be this species, and which 

 he had found feeding under lichens and moss growing on ash trees at 

 Corfe Castle. 



Length, half to five-eighths of an inch, and of the usual Scoparia form : body 

 cylindrical, of moderate bulk, and attenuated slightly at the extremities. Head, 

 with the frontal and anal plates highly polished, and the large round tubercles also 

 glossy : the tubercles, together with the deeply cut segmental divisions, and a slight 

 transverse ridge on each segment, give to the skin a wrinkled appearance. 



The ground-colour is a sort of greenish-yellow, very similar indeed to the colour 

 of the lichens on which the larva feeds ; head, plates, and tubercles very dark bronzy- 

 brown ; the front pair of tubercles on each segment are larger, and closer together 

 than the hind pair ; and in young specimens the front and back tubercles on each 

 side appear to join, and so form distinct, dark, bronze, oblique streaks. When the 

 larva is crawling, the dark green alimentary vessel shows through at the segmental 

 divisions, as the dorsal stripe, but there are no perceptible sub-dorsal or spiracular 

 lines. 



Ventral surface and prolegs of the same colour as the ground of the dorsal 

 area, the legs ringed with darker. 



I found the first imago out on June 30th, and others appeared at 

 intervals afterwards. During the second week in July Mr. Bankes 

 wrote me my specimens had appeared well up to time, as the species 

 was then common with him on apple trees in an orchard. 

 Huddersfield : March 3rd, 1887. 



A NEW GENUS OF PIERIN^ ALLIED TO APPIAS. 



BY ARTHUR G. BUTLER, F.L.S., F.Z.S., &c. 



Whilst re-arranging our collection of Pierince last year, I care- 

 fully re-examined the structure of the whole of the species, and 

 thereby discovered that amongst the forms previously associated under 

 the generic name of Appias (= Tachyris, Wallace), characterized by 



