( ."21 ) 



SmeriiilliK.-i oreUii.tii w&v. atlniilinis, Staudingei- ^t Reb., C'/^ Lrp. ed. iii. p. 99. sub n. ~rl(\ (1901) 



(Maur. or.). 

 *^mermlhiis nusimiti x iiihoitini^ = hibr. luH'is Austaut, /..■. xv p. -.'.'iO (1S9:?); Bartel, l.r. p. 181 



(1900). 

 *Smnhilliii.-< (wsfiiuli x ntlaidH-iis = hibi'. mcli.-i ab ilrlela .\ustHUt, I.,: p. 2:11 (1H93); Bartel, /,-■. p. 183 



(1900). 

 Smerinthus aUniilirn x iiop'ili = hyhr./riiig.ii Standfiiss, fiiil/. Sac. Etil. France p. 87 (1901). 

 Smerinthiis uthmtlca x uuslauti = hybr. obrrtluicn Tutt, fliil. Lrp. iii. p. 393 (1902). 



c??. A large North African form, correspoiuliiig to the equally enlarged 

 edition oi jjopHli of the same countries. The harpe is longer and distally narrower 

 than iu ocell. oceUntn, the conical tooth of the pcnis-slieath heavier, more strongly 

 cnrved, almost elbowed. 



The specimen named at'st/oalis by Anstant is in the Tring Museum ; the 

 difference between it and ordinary specimens of atlanticus is very slight. The 

 series of hybrids austauf.i x atlanticus in the Tring Museum (11 specimens) e.xliibits 

 considerable variation ; in some the russet-tawny colour of the bindwiiig has nearly 

 disa{)peared ; the grey centre of the black j)atcii of the hindwing is often transverse, 

 of irregular shape, rarely circular ; the autemedian line bordering the dark discal 

 area of the forewing is often angnlate behind the base of M'-. 



Larva and pupa similar to those of oce/l. ocellatn, but the head of tlie former 

 dark green, the horn uniformly grey- blue. 



H'^ih. North Africa : Algiers and North Morocco. 



In the Tring Museum 3 cJcJ, 5 ? ? (inclmling Austaut's types o^ ntl'inficH--< and 

 aestimlis) from Meridje , S. Algiers ; S J,^', 3 ? ¥ nnstauti x atlnntirus ; '1 6 6 

 athnticus x populi, 



271. Sphinx planus. 



*Smermthiis 2)lanus Walker, List Lej>. Ins. B. M. viii. p. 254. n. 18 (1856) (N. China ;— Mus. Brit.) ; 



Boisd., Spec. Gen. Lep. Het. p. 33. n. 22 (1875) ; Butl., Trans. Znol. Soc. Load. ix. p. .■)9 !. n. 3. 



t. 92. f. 11 (1877) (N. China ; Shanghai ; larva shortly descr.) ; Kirby, Cut. Lep. Het. i. p. 711. 



n. 4 (1892) (China; Japan; = (irgiis) ; Bartel, in Riihl, Gro^isachm. ii. p. 169 (1900) (East 



Siberia ; Amur ; Korea ; China ; Japan). 

 Smerinthus aripis Mc'niHrie's, Kmnn. Carp. Anim. Mus. Pctr. ii. p. 13(5. n. 1561. t. 13. f. 3 (1857) 



(Amur ;-Mus. St. Petropolis) ; ij., .McL Biol. Ac. kl. I'eter.sh. i. p. A8. n. 110 (1859) (Amur) ; 



Staud., Cat. Lep. Eiir. ed. ii. p. 37. n. 480 (1871) (Amur) ; Boisd., I.e. p. 32. n. 21 (1875) (var. 



of ocell. ?) ; Butl, I.e. n. 4 (1877) ; Oberth., Et. eriuit. v. p. 26. n. 05 (1880) (Askold, vii.) ; 



id., Bull. Soc. Ent. France p. 50 (1886) (Manrhuria, viii., I. on Sulix) ; Graes., Berl. Ent. 



Zeitschr. xxxii. p. 106. n. 191 (1888) (/. on Popnlus, rarely Salir) ; Fixs., in Rom., Mem. hep. 



iii. p. 322. n. 99 (1889) (Corea, vi.). 

 Smerinthus arrjus {i.cclhitn var.?), StauJinger, iii Rom., .]fcw. Lep. vi. p. 236. n. 22o (1892) (Amur- 

 land ; China: Japan; = ".v7/«/({ var ?). 

 Smerinthus ncelhitus. Leech [wm Linni', 1758), ProcZoul. Soc. Lonrl. p. 587. n. 26 (1888) (Yokohama; 



Gensan ; Kiukiang) ; id., Tnins. Ent. Soc. Land. p. 119. n. 91 (1889) (= anjus ; Kiukiang) ; 



id.. I.e. p. 278. n. 39 (1899) (Yokohama ; Gensan ; Kiukiang ; Chang- Yang). 

 Smerinthus ocellatu var. planus, Staudinger t^- Reb., Cat. Lip. ed. iii. p.lOO. sub n. 720 (1901 ) ; Tutt, 



Brit. Lep. iii. p. 428 (1902). 



In opposition to Leech, who pronuiniced plantis to be identical with oci'll'ita, 

 Staudinger maintained tiiat there were some differences between the two in cjlour 

 and pattern which jnstiHetl the separation of phi// us fiom ocellata, if not as a species, 

 at least as a "good" geograjthical race. The distinguishing characters pointed out 

 by Staudinger in 18'.J2 were subseijue/itly said by Leech to be quite unreliable. 

 AVriters on Palaearctic Lepidoptera mention planus generally as doubtfully distinct, 

 or as a slightly different form of oceUata. It is very curious that not o/ic of the 



Y 



