64 LEPIDOPTERA. 



preceding species, and is still to be found in the latter half of 

 June, and even in the beginning of July, is considerably 

 larger (about 7"' long) and varies in its colour from a dirty 

 whitish-grey, bluish-grey, or yellowish-grey to a rather 

 deep dark-grey. 



The head is entirely honey -yellow, or on the hinder margin 

 more or less broadly coloured black (to a very variable ex- 

 tent), sometimes even entirely black. The thoracic shield is 

 black, narrowly margined with pale yellowish-brown at its 

 anterior edge, divided in the middle by a slender pale longi- 

 tudinal line. Pectoral legs, outer side of the anal prolegs 

 and anal plate black; behind the latter, as already mentioned, 

 the thorny plate of chitine is entirely wanting. Ventral 

 prolegs, and the inner side of the anal prolegs, of the colour 

 of the body. Generally the dorsal vessel shows through 

 distinctly along the back, and forms a dark dorsal stripe. 

 The warts are large and shining black. By them, and by 

 the unarmed anal plate, Sc. Wahlbomiana is therefore 

 easily distinguishable from Minusculana; how it differs 

 from its varieties Sc. virgaureana and communana shall be 

 shown further on. 



The pupae of Wahlbomiana are rather larger and of a 

 darker brown colour, and have two considerably longer 

 horny points at the anal end, directed posteriorily and up- 

 wards; these have between them at their bases a semicircular 

 incision. 



The hairs of the anal end are thinner and longer, and not 

 recurved like hooks. 



Hence by these characters the pupa of Sc. Wahlbomiana 

 may be easily distinguished from that of Sc. minusculana. 



As food-plants for this species I find, according to the 

 labels on the specimens in my collection, the following are 

 indicated : — Ranunculus Jicaria, Orobus tuberosus, An- 



