326 NOVITATES ZOOLOOICAE XXIV. 1917. 



but all intermediates occur. The following gives about the proportions of the 

 four forms, but the intenBcdiate ones are included under the nearest form : 

 Le Krcider, all auslanti ; Ain Sefra, 4 aiistauii, 8 ab. siawlingeri, 10 ab. incarnaia, 



3 ab. mirahilis ; Meridje, Morocco. 5 austauti, 10 ab. staudingeri, 5 ab. incarnata, 



4 ah. mirahilis; Sidi-bel-Abbes, 1 ab. siawlingeri; Batna, 10 austauti, 11 ab. 

 staudingeri, 3 ab. inmrnata, 10 ab. mirabilis ; Tunis, 1 austauti, I ab. mirahilis. 

 In addition to these four well-known aberrations of this insect, Jlr. Charles 

 Oberthiir has named a saffron-yellow specimen he received from Tangier ab. 

 aurantiaca. 



1 have one specimen taken in Algeria which is not populi austauti, but 

 true populi populi. 



2 Mauretania, ex. coll. Grum-Grshimailo. 



24 Meridje, Morocco, including the types of ab. staudingeri Aust., ab. in- 

 carnata Aust., and ab. mirabilis Aust. 



25 Ain Sefra, W. R. and E. H. and Faroult, May— July 1913-1915. 

 18 Lo Kreider, Prov. Oran. April 1916, Rotrou. 



1 Sidi-bel- Abbes, July 1912, Rotrou. 



1 Alger, May 1908, Dr. Nissen (labelled W. R. and E. H.). 



1 Hammam R'ihra, July 1916, Faroult. 

 34 Batna, May— July 1909-1914, A. Nelva. 



2 Tunis, Dr. A. Koenig. 1886-1887. 



1 larva (half-grown), 2 pupae, Meridje, Dr. Staudinger. 



3 adult larvae, a number of freshly-hatched larvae, and 1 pupa, Ain Sefra. 



2 pupae and 6 pupa-cases, Batna. 



The Tring series of 108 specimens was selected from some 250 examples 

 from the various localities quoted. 



The British Museum has 1 1 specimens : 7 Algiers, Leech coU. (austauti) ; 

 4 Am Sefra (ab. staudingeri and ab. mirahilis), Faroult, ex Tring Museum. 



3. Amorpha populi populi (Linn.). 



Sphinx populi Liiinaeus, Syst. Nat. edit. x. p. 489. No. 2 (1758) (Sweden). 



The specimen detailed below had evidently been imported in the egg stage 

 with young poplar-trees. 



1 Perregaux, Prov. Oran, 1916, Faroult. 



4. Smerinthus ocellatus atlanticus (Aust.). 



SmerirUhm aUanticus Auataut, Le Natural, vol. xii. p. 190 (1890) (Oudja (Oudjda ? reote, W.E.)). 



We never came across this insect ourselves, in spite of having worked a 

 lamp in many places where poplars and willows abound. 



The Tring Museum possesses 49 specimens of this insect ; but it must not 

 be thought that this small number as compared with p. austauti denotes that 

 it is rarer than that species, for it is often much more abundant ; it is only an 

 accident that the Tring Museum has never received this insect in quantity. 



4 Meridje, Morocco, including Austaut's t3'pes of atlanticus and form. temp. 

 aestivalis. 



4 Algeria, Bohlmann (form. ae#t. aeslirxilis). 



