on the genns Colias. 5 



sometimes almost absent. The band in the female has 

 rarely only faint traces of spots (one figured). 



He says that Ecliisa varieties are now known, re- 

 sembling in almost all details Myrmidone, Chrysotheme, 

 and Erate. This is correct as regards the first, but not 

 as to the other two, and he thinks Erate is a connecting 

 link between Edusa and Hyale ; but here again he speaks 

 without sufficient knowledge of Erate. 



With regard to breeding, the following details are 

 given : — A female caught on June 6th ; laid upwards of 

 200 eggs June 8th ; hatched June 14th ; first larvte 

 turned to pupse July 9th ; imago appeared July 21st ; 

 43 days being the shortest time from egg to imago, 68 

 days the longest. 



The conclusions from a long series of notes by various 

 persons are to the effect that Edusa is normally double- 

 brooded, sometimes triple-brooded. It may pass the 

 winter in either of its four stages of existence, accord- 

 ing to the period at which the eggs are laid. 



Notwithstanding its extraordinary abundance in the 

 wet year 1877, it has been ever since, during six seasons, 

 a very scarce species in England. 



Group I. Female sex only spotted on the dark border 



OF THE fore wing. 



Section 1. Having 

 at the base of 



C. Edusa, Linn. 

 C. Mijrmidone, Esp. 



C. Electra, Linn. 

 C. Aurorina, H.-S. 

 var. Libanotica, Led 



var. Heldreickii, Stgr 

 C. Aurora, Esp. 



var. Olr/a, Eom. 

 C. WiskoUi, Stgr. 

 C. Fieldii, Men. 



C. Meadii,B([\f. 

 C. Lesbia, Fabr. 



C. Vautieri, Guer. 

 C. dimera, Doubl. 



? ? =Eu.Tanthe, Feld 



in the male sex a patch of thick scales 

 the npinr side of the hind iving. 



.. Western, Central and Southern Europe; 

 Azores ; N. Africa ; Syria. 



Central, Eastern and Southern Ger- 

 many ; S. Eussia ; Turkey ; Trans- 

 caucasia. 



Cape of Good Hope ; Transvaal ; Natal. 



Mountains of Armenia ; Cilicia. 



Mountains of Syria; N. Persia; Asia 

 Minor. 



Mountains of Greece. 



South-East Siberia and Amur Region. 



Transcaucasia. 



Mountains of Turkestan. 



Himalayas, from Bhotan to Kashmir, 

 Western China. 



High mountains of Colorado. 



Argentine States ; Patagonia ; Andes, 

 Ecuador ; Bolivia ? ; Peru ?. 



Chili ; Straits of Magellan. 



Andes of Columbia and Ecuador. 



High Andes of Ecuador; Upper Peru. 



