XOVITATES ZOOLORICAE XXIV. 1917. 396 



113. Ocnogyna adaena huegenini (Oberth.). 



Trichosoma huegenini Obsrthiir, Etud. Enlom. liv. iii. p. 42 (1878) (Alger). 



This is the Alger form with hardly any marks on the forewing and two 

 oblique bars on the hindwing which Mr. Oberthiir also called gandolphii. It 

 is the most constant form. 



13 (?,J, 3 ?? Environs d'Alger, Dr. Nissen, Captain Holl. 

 1 (J Medea, 1884, Dr. Kobelt. 



1 S Alger, M. Bartel in the British Museum. 



114. Ocnogyna adaena pallida subsp. nov. 



(J. Differs from the other forms of adaena in the very pale forewings and 

 in the pale portions of the hindwings, being greyish white not yellow or orange. 

 9. Differs in being dirty grey not black. 

 Hah. Djerba Island, Tunisia. 



1 (J, 1 $ Djerba Island. 



In the British Museum is 1 o from El Esnam. 



[Mr. Oberthiir places brcveti Oberth. next, but as that belongs to another 

 genus it must follow Ocnogyna]. 



115. Ocnogyna pudens (Lucas). 



Trichosoma piulens'L\ico,%, Ann. Soc. Eiitom. France, ser. iii. vol. i. p. 410. pi. 33. f. 1 (1853) (Spain). 



This is a very variable species, the ground-colour varies from deep brown- 

 grey to bright rufous and the forewings vary from being almost devoid of dark 

 markings through grades showing a few scattered dark spots to definite discal 

 bands of spots, and finally to complete dark transverse bands. The Tring 

 Museum possesses 31 specimens. 



1 S Mauretania, Grum-Grshimailo coll. 



6 cJ(J "Algiers," Staudinger. 



1 (J, 1 ? Environs d'Alger, Captain Holl. 



1 $ El Biar, Alger, Captain Holl. 



15 <J(J, 4 ?? Blida les Glacieres, April— June 1908-1916, W. R. and K. J., 

 Dr. Nissen, Captain Holl, Faroult. 



2 iJ<J Hammam R'ihra, May 1912, W. R. and K. J. 



In the British Museum are Z S,^ : I Algeria, Mrs. do la B. NichoU, 1 Algeria 

 and 1 Bone, Dr. Vallantin. 



110. Ocnogyna leprieuri (Oberth.). 



Spiloaoma leprieuri Oberthiir, Etud. EiUom. liv. iii. p. 43. pi. 5. f. 2 (1878) (Bflne). 



We have never taken this rare insect, and I have never received it from 

 any of my Algerian correspondents. 



2 (J (J, 1 5 Philippeville, Staudinger. 



In the British Museum are 1 o, 1 $ from Philippeville. 



