336 NOVITATES ZOOLOOICAE XXIV. 1917. 



The ochre-yellow form alone lias been named ab. fowelli by Mr. Oberthur, 

 90 I propose for the clear bright yellow form the name of ab. flava ab. nov. 



The British Museum has 8 specimens : 2 Algiers, Frey coll. ; 2 Mauretania, 

 Leech coll. ; .3 Constantine, Crowley bequest ; 1 Shietia, Tunisia, G. C. Champion. 



22. Zygaena favonia staudingeri Aust. 



Zygaena cedri var. staudingeri Au3taut, Peiites Nouv. Entom. vol. ii. p. 243 (1878) (Nemours). 



We never took this form in the west, but found it as an aberration at 

 Hammam R'ihra. 



Mr. Oberthiir has confused this race with vitrina Stdgr., which I consider 

 a distinct species, for reasons stated before. I have never seen vitrina, 

 which appears to be confined to the province of Constantine, with only 

 one pink abdominal ring ; it always has two and generally three such rings ; 

 while, on the contrary, from wherever I have seen true favonia, I have 

 seen occasionally specimens with single rings and in the extreme west of 

 Algeria only 2 per cent, or 20 per 1,000 have more than one ring. I therefore 

 consider that /. staudingeri (which differs from favonia favonia in the single 

 abdominal ring) should be treated as a local subspecies and not only as an 

 aberration. 



1 Saida, May 1913, W. R. and E. H. 

 1 Tifrit, May 1913, W. R. and E. H. 

 236 Masser Mines, June 1914, Faroult. 

 19 Hammam R'ihra, May 1908-1911, W. R., E. H., and K. J. 



23. Zygaena favonia littoralis subsp. nov. 



(J ?. Differs from /. favonia in the ground-colour of the forewings being as 

 dark as in sarpedon veryietensis, i.e. sooty green-grey, ^^•hile the red spots and the 

 hindwings are of a dark purpUsh blood-red. There is a single abdominal ring as 

 in /. staudingeri. 



Habitat. Atlantic Uttoral of Morocco. 



5 Mogador, Staudinger. 



24. Zygaena favonia aurata Blachier. 



Zygaena favonia aurata Blachier, Bull. Soc. Entom. France, vol. Ixxiv. p. 213 (1905) (Moroccan 

 Atlas). 



I have seen two specimens of this form collected by Mr. Meade-Waldo on 

 Tizi Gourza, Moroccan Atlas, about 1 2,400 ft., in July 1 901 , together with a speci- 

 men which is intermediate between favonia stavdingeri and favonia littoralis. 

 In his article Mr. Meade- Waldo says both forms were very common. For the 

 moment I retain these two forms under favonia as a local race ; but I believe 

 when we get more material aurata will prove a distinct species, alongside of which 

 occurs a local race of favonia. 



This other form I propose to name for the present /. aurata form, diniorph. 

 iyitermedia form. nov. ; but if aurata proves, as I believe it ^ill, to be a distinct 

 species, it will then have to stand as favonia intermedia Rothseh. 



Of this intermedia there are in the Britisli Museum, in addition to Mr. Meade- 

 Waldo's Tizi Gourza specimen, seven others labelled " Morocco," Leech coll. 



