NOVITATES ZOOLOGICAE XXIV. 1917. 



107 



/. fidia ; below they are very distinct, the whole forew uig being sufiused with 

 yellow and the hindwuigs bemg much browner in tint and the white veins being 

 much exaggerated. The size is very even, only two ?? being markedly smaller 

 than the rest. 



Length of forewing. Expanse. 



6" fidia fidui, 35 mm. ....... 74 mm. 



(J fidia hebitis, 30 mm. ....... 64 mm. 



(J fidia minor, 24 mm. . ...... 51 mm. 



$ /. fi^lia, 38 mm. ........ 81 mm. 



? /. hebitis, 26-35 mm 56-74 mm. 



? /. minor, 24 mm. ........ 52 mm. 



Habitat. Hauts Plateaux and southern chain of the Atlas of Provinces of 

 Alger and Oran (type ?, Guelt-es-Stel). 



91 Guelt-es-Stel, August— October 1913, Faroult. 



506. Satyrus (Satyrus) fidia intermedia, subsp. iiov. 



This is the form of fidia from the Northern Atlas Range in the Province of 

 Oran. 



(J differs from /. fidia in its much darker, almost black upperside without 

 blue lustre, smaller size, and smaller, often almost absent white spots between 

 the ocelli. 



? differs in its smaller size, darker colour, and below in the very large and 

 strong yellow rings to the ocelli. 



Length of forewing : (J 31 mm. ; ? 33 mm. Expanse : 3 66 mm. ; ? 70 ram. 



Habitat. Les Pins, Sebdou (type 3, Les Pins). 



14 Les Pins, Prov. Oran, August 1915, Rotrou. 



Miss Fountaine found this insect at Sebdou, July — August 1904. 



[Satyrus abdelkader Pierret. 



Mr. Charles Oberthiir has published such an exhaustive history of this 

 famous insect, as well as such a wealth of observation and study carried out 

 by Messrs. Powell and Le Cerf , that nothing remains for me to say on the general 

 subject ; but I cannot help disagreeing with Mr. Oberthiir about some of his 

 conclusions in regard to the status of the three forms, abdelkader, lambessamis, 

 and nelvai. 



IMr. Oberthiir says that he considers abdelkader and nelvai as forms of one 

 species, while he regards lambessanus as a separate species. In this I cannot 

 follow him at all, for among my Batna-Lambessa specimens are some <J(J uidis- 

 tinguishable from So from Titen Yaya in the Oranais. I consider all three 

 forms as snbspecies of a single species abdelkader, but I agree so far with Mr. 

 Oberthiir that I think lambessanus has become more differentiated from the 

 other two than they have from each other. It is most strange that while in 

 the Oranais abdelkader abdelkader flies in June and July, this same form at 

 Guelt-es-Stel flies in September and October. The form lambessanus flies in 

 April and May, while a. nelvai is on the wing from end of August throughout 

 September.] 



