394 NOVITATES ZOOLOOICAE XXIV. 1917. 



descriptions of a number of Thibetan Drejmnidae, but Mr. Oberthiir has gone 

 further than this and has described a new species of Cilix from Ta-Tsien-Lu 

 in the text of the paragraph relating to Cilix glaucata. 



MEGAZ.OF Y6ID AE . 



Dr. Jordan has written a pieliminar}- article on these (Novit. Zool. xxiii. 

 pp. 350-358 (1916)); and as I hope he will soon be able to write more exhaust- 

 ively and finallj' on this group, I am leaving them out of this paper. I will 

 onlj' state that we now have at Tring considerably more than 1,000 (Jo of the 

 various species of Somdbrachys, and that we see nothing as yet to alter our 

 opinion that there are only 3 species with a large number of aberrations, and 

 not, as Mr. Oberthiir believes, at least 18 species and 2 subspecies. 



ABCTIIOAE. 



Arctianae. 



111. Ocnogyna boetica albescens (Oberth.). 



Trichosoma boelica ab. atbescenaOheithm, Elud. Lipidop. Comp. Faso. XIII. p. 8. pi. odxxxv. f. 3745 

 (I9I7) (Larabtee). 



It is unfortunate that the name mauretanica given to the Mauretanian form 

 of this insect is preocoupied, so that Oberthiir's name given to an aberration is 

 the only available one. The Mauretanian race of 0. boetica is, when a long 

 series is examined, generally larger and always with the white markings purer 

 and more pronounced than in the typical Spanish form. 



I have 2 Ain Draham specimens which are enormous, fully two-fifths 

 larger than any Spanish specimens. 



76 <JcJ Environs de Batna. 1909-1912, Nelva coll. 

 1 (J, 2 ?? Sebdou, 1880-1882, Dr. Codet ex coll. Grum-Grshmailo. 

 1 cJ Boghari, November 1912, Faroult. 

 6 <J(J, 4 ?$ Hussein Dey, December 1912, Captain Holl. 

 1 <J, 4 $? Souk Ahras (larvae April 1914, emerged Tring, November 1914), 

 W. R. and K. J. 



In British Museum, 2 o(J, 1 ? "Algiers," Heyne. 



112. Ocnogyna adaena mauretanica (Lucas). 



Trichosoma mauretanica Lucas, Explor. Scient. d'Alg. Zool. Anim. Art. vol. iii. p. 376. pi. 3. f. 5 

 (1849) (Cercle de Lacalle). 



Fabricius in Mant. Ins. vol. ii. p. )23. No. 130 (1787) described the typical 

 form of this insect from Spain which was later on called pierreti by Rambur, 

 Bull. Soc. Ejit. France, 1841, p. xxvii. pi. 5. f. 1 (Andalusia). 



The Mauretanian examples fall into 3 subspecies, the above from the coast 

 and Hants Plateaux east of Alger to Tunis, one from Alger and neighbour- 

 hood, and one from Djerba Islands, Tunisia. 



1 (J Bone, Max Bartel. ' 



10 (J (J, 2 ?? Mauretania, Staudingcr and Grum-Grshmailo coll. 



In the British Museum, 2 Jjj, 1 ?, Bone, Algeria. 



