KOVITATES ZOOLOQICAE XXIV. 1917. 349 



50. Hybocampa powelli Oberth. 



Hylocampa powelli Oberthur, Bull. Soc. Entom. France, 1912. p. 339 (Lambesaa). 



Thi.s .species is not represented at Tring. Besides the two specimens in 

 Mr. Obertliiir's collection, I have seen one in the late Captain HoU's collection, 

 and I saw one in 1914 in the possession of Mr. A. Nelva at Batna, but could not 

 persuade him to part with it as he thought it was a new species. 



51. Pterostoma palpina (Linn.). 



Phalaena palpina Linnaeus, Fauna Suec. edit. Alt. (1701). 



1 have never seen a Mauretanian example of this insect. 



52. Phalera bucephala bucephalina Stdgr. 



Phalera bucephala var. bucephalina Staudinger, Cat. Lipid. Palaear. Fauneng. part i. p. 111. Hu. 

 858 b. (1901) (Tangier). 



We have never taken this insect ourselves. 



2 Tangier, Staudinger. 



1 Ain Draham, Faroult (autumn 1911). 



53. Ichthyura pigra powelli (Oberth.). 

 Pygaera powelli Oberthiir. 



We never found this insect ourselves. 



2 Batna, September 1912, A. Nelva. 



54. Thaumetopoea pityocampa (Schiff.). 



Phalaena pityocampa SchiffermuUer, Syst. Verz. Schmett. Wien, p. 58 (1776) (Vienna). 



We have seen many nests and larvae of this species, but never took any 

 imagines, as we have not been in Algeria so late in the year. 



16 Guelt-es-Stel, August— September 1912-1913, Faroult. 



1 Sidi Ferruch, A. Thery. 

 21 Sakamudi, August 1912, Faroult. 



4 Batna, 1911-1912, A. Nelva. 



The 4 Batna examples are only about two-thirds the size of the others. 

 Tring possesses altogether 42 Algerian examples. 



55. Thaumetopoea herculeana (Ramb.). 



Cnethocampa herculeana Rambur, Faune Andal. pi. 14. ff. 5, G (1839) (Cadiz) ; Cat. Syst. Lipid. 

 Andal. pp. 384, 385 (1866). 



The same remarks apply to this species. In 1914 (Novit. Zool. vol. xxi. 

 p. 313) I called the Algerian form of herculeana subspecies colossa Bang-Haas, but 

 on carefully going into the question I find that equally large specimens occur 

 all over the range of this species, so if retained at all Bang-Haas's name can only 

 stand as ab. colossa. 



228 Guelt-es-Stel, September— October 1912-1913, Faroult. 

 2 Mazagan, Morocco, October 1902, W. Riggenbach. 

 2 Rabat, Morocco, 1913, A. Thery. 



