( 319 ) 



Hofm,, liuuj,. Grnsxsvhm. p. 30. t. 8. f. 6 (1893) ; id., Gmssschiii. Em: p. 31. n. 3. t. 18. f. 5 



(1894) ; Kill. & Cafl., Jahih. Nat. Gr«. Gniiih. xxxviii. .Iyv(. p. 20 (!89o) ; Vos, Tijchchr. Ent. 



xli. p. 80 (1898) (Apeldoorn) ; Bart., in Riihl, Gmssscli. ii. p. 171 (1900) (Europe, Asia min., 



Transc. i West. Siher.) : Staud. * Reb.. Cat. Li-p. ed. iii. p. 99. n. 72G (1901) (partim) ; Tutt, 



Bril. Lrp. iii. p. 4-24 (1902). 

 Laiillioe ucelhtlii, Fabricius, in lUig., .!/(///. Enl. vi. p. 288. n. 42 (1807). 

 Paoiiius mlu'h Hiibner, Vciz. hek Hchm. p. 142. n. 1.519 (1822). 

 Sineriidhm welli(Ui.i {'.), Stephens, I/liistr. Bril. Eiil., Haiint. i. p. 112 (1828) ; id., dil. l!nl. lii.t. 



ii. p. 30 (1829) ; Westw. c'C- Humphr., Brit. .Untli« i. p. 7. t. 1. f. 1. 2. 3 (1843) : Boisd., C%ii. 



Em:, Sphinti. t. 7. f. 2. 3. 4 (1832-43) ; id., S/nv. Gen. Up. BH. i. p. 31. u. 20 (1875) : Kirby, 



Cut. Lep. Hel. i. p 711. n. 1 (18112) ( Europe ; N. * W. Asia) ; Barrett, Lip. Bril. hi. ii. p. 3. 



n. 1. t. 41. f. 1. a.— d. (1895) (Engl. S. Scotl., Ireld.). 

 Merinthuts (!) nrdlatids (!), Meigen, Ifaiidb. Sclim. p. 102. d. 20 (1827) ; id., Si/.il. Bexrhr. Em: Sriiiii. 



ii. p. 148. n. 1 (1830). 

 Smurynthiis (!) ocellata, Cantener, in Silberni., Rir. d'Eiil. i. p. 77 (1833) (Drp. du Var, iv. vii. 



= .sc//ir/.v). 

 Dilimi orcUalii, Zetterstedt, Ins. Lajiji. p. 917 (1840). 

 *Sniprintliiis ocdlala var. rinerasrrm^ Staudinger, Skit. Ent. Ziit. xl. p. 3Ui (1879) (Nar^'n ; — coll. 



Staudinger) ; id,, in Rom., .Mnn. Lip. vi. p. 237. sub n. 226 (1892) ; Bartel, l.r. 176 (1900) ; 



Staud. & Reb., /.-■. p. 99. sub n. 726 (1901) (Naryn). 

 Sntcr/nlhns stilins (!), Hofmann, Raiip. G rossiirh m . p. 30 (1893) (■'<''//> x}/n.). 

 Snierinthus orellala ah. msfii Bartel, l.i: p. 176 (1900). 

 Smerinllms ocrllatns X populi, Westviood, Brit. Moths p. 7 t. 1. f. 10 (1843) ; Barrett, Lep. Brit. /kI. 



t. 41. f. 2 (1895) ; Hause, Trans. Ent. .SV,c. Land. p. 193 (1843) ; Westw., ibid. p. 195. t. 2. 



f. 1 (1843). 

 Smerintliiis urellat/t x populi, Bellier, Ball. Snr. Ent. Friincc p. 5 (1863). 

 Smerinthu.'i ocflUita hibr. hybridns Stephens, List Bril. Anim. Brit. Mns. v. p. 26 (1860) : Slauil., 



Oit. Lep. Eur. p. 16. sub n. 27 (1861) ; id., I.e. ed. ii. p. 37. sub n. 487 (1871) ; Bartel, in Ruld, 



Grosssclun. ii. p. 176 (1900). 

 Hmeriiithus oeethitii. Wiskott, Fesiseln: Ver. Seldes. Ins. {Sep.) p. 19. n. 68. t. 3. f. 5 (1897) 



(gynandr.) : Schultz, Jllnsl. Zeitsrhr. Ent. ii. p. 393 (1897) (gynandr.) ; Bartel, i.e. p. 174 (1900). 

 Snierinthns orellala x populi, Briggs, Enton,. p. 217 (1881) ; Wisk., /..-. p. 19. n. 69. t. 3. f. 8 (1897); 



(gynandr.) ; Schultz, I.e. p. 395 (1897) ; Bartel, I.e. p. 177 (1900). 

 Smerinllms oeeUala hybr. Iii/brldus, Staudinger & Rebel, Cat. Lep. ed. iii. p. 99. sub. n. 726 (1901) ; 



Tutt, Bril. Lep. iii. p. 392 (1902). 

 Snierinthns tillae x ocetbrta = leoniae Standfuss, Bidl. Soe. Ent. France p. 86 (1901). 

 Snierinthns oeellata a.h. pallida Tutt, I.e. p. 427 (1902). 



The individuals from tlie Ural and South Russia which we liave examined do 

 not seem to us to be different from the e.xamples of Central and Western Europe. 

 Dr. Staudinger, Lc, described as cinerascens a South Russian individual which he 

 considered to represent a desert form. Tiiis individual is certainly different from 

 all others we have seen, but we do not believe that it is anything else but an 

 abnormal si)ecimen ; anyhow, a single example from a particular jilace is certainly 

 not sufficient to base a geographical race upon if the individuals from the 

 surrounding countries are of the ordinary type. 



The S o\' occllatn copulates in confinement comparatively easily witli tlie ? of 

 Amorjiha pojjiili. Tlie oH'spring of such a union stand in structure, shape, and 

 colour, intermediate between the parent species. The thorn at the end of the 

 foretibia is short, mostly concealed under the scaling, the penis-sheath resembles 

 that of jiojiuli, the teeth of the duct are either j)artly or all rej)laced by fine 

 bristles ; thr liarpe agi'ees better with tljat of ocdliitii, being, however, longer and 

 slenderer. 



Authenlie, nlfspring of the reverse union are now also known, StarKlfuss's 

 experiments having at last been successful in so far as he reared two ? ? of this 

 hybrid. Tlie statement a|)jiearing in various bcxjks that the hybrid jtopiili x ncellata 

 is identical with jxipuli has, as a matter of course, no foundation. The specimens 



