( clx ) 



from Juniper from the neighbourhood of Croydon; the other 

 supposed specimens have tinned out to be E. satyrata (see 

 South " British Moths," vol. ii. p. 239). 



It seems to be exceedingly scarce in collections, the only 

 specimen purporting to be this form that 1 have seen is one 

 which was in the collection of the late C. A. Briggs, and 

 which I purchased at his sale; this is certainly not E. var. 

 arceuthata. 



In 1915 a friend informed me lie had beaten two green 

 Ewpiiheda larvae from Juniper in Surrey, and in the follow- 

 ing year bred two undoubted examples of this variety there- 

 from. In 1916, my friend having kindly given me the locality. 

 1 obtained six larvae, from which I bred three examples. In 

 1917 thirteen larvae were obtained, from which, however, 

 only three more imagines resulted; whilst this year I could 

 only obtain four larvae. 



It will thus be seen that E. var. arceuthata seems rare, at 

 any rate in Surrey, and it is also exceedingly local, for all 

 my larvae have been obtained from one small group of .1 nnipers, 

 although these shrubs are plentiful in the district. 



Mr. Kaye and the Rev. F. D. Morice commented on this 

 exhibit. 



New Sub-species of Heliconius erato. — Mr. W. J. Kaye 

 exhibited a remarkable new form of Heliconius erato* for 

 which he proposed the name extrema. It formed a connecting 

 link between H. erato chestertoni and H. erato colombina. It 

 was remarked that both of these two occurred usually without 

 any but the most trivial variation. Both occurred in the 

 Cauca Valley of Colombia, over a great area from north to 

 south. In addition to the form extrema three others were 

 shown, which formed a graduating series to colombina; one 

 of these being very similar to extrema, but showing faintly 

 an indication of a transverse yellow band beneath, as well as 

 a very small indication of the fore-wing led band as found in 



* Heliconius erato extrema. no v. s. sp. 



Fore-wing dark bluish black with a steely gloss. Except Eor a 

 small rod dot on the oosta above discocellulars without markings. 

 Hind wing like fore -wing unicolorous dark bluish black. No trace of 

 yellow transverse band either above or below. 1 S. 



Hub. Colombia, Cauca ( ''■). 



