EUMORPHIN^E. 49 



the foodplant. In this, it differs considerably from the larva of 

 T. vespertilio, which, by day, is to be found under stones or on the 

 earth. The pupa, in form and colour, more resembles that of 

 T. vespertilio than that of H. euphorbiae. It is yellow-brown ; 

 dorsal area and abdominal segments above darker, with small blackish 

 spots or streaks. The wing-cases are greenish as in the pupa of T. 

 vespertilio (in the empty pupa-case yellowish-brown) while in H. 

 euphorbiae they are grey-yellow. The pupa of H. hybr. epilobii is more 

 slender than that of H. euphorbiae, the cremaster is somewhat 

 longer, its forked points somewhat shorter than in either of the 

 original species. Like them, the pupa of H. hybr. epilobii sometimes 

 goes over a second winter." As to the parentage, Bartel says that H. 

 hybr. epilobii originates probably, according to Boisduval, from $ 

 euphorbiae X ? vespertilio, since the larvae found on Epilobium rejected 

 the spurge that was offered them. It is well known that the various 

 species of Tithymalus (Euphorbia) form the foodplant of the larva 

 of H. euphorbiae, while that of T. vespertilio only occurs on 

 Epilobium, and one may easily assume that the eggs of T. vespertilio, 

 as also those of H. hybr. epilobii, are laid on or near Epilobium, 

 whereas if the $ [parent] of this hybrid were H. euphorbiae, then 

 it would instinctively have laid its eggs on spurge, the food- 

 plant of that species, but no larvae of H. hybr. epilobii have hitherto 

 been found on Tithymalus (Euphorbia). Although this hybrid 

 might occur everywhere where the range of distribution of T. 

 vespertilio coincides with that of H. euphorbiae, yet only a few 

 localities for it in a small part of the central and southern part 

 of Western Europe have been made known. This speaks distinctly 

 enough for its extraordinary rarity, as also, in general, for the 

 sparing occurrence of hybrids in a state of nature. In the literature 

 which has been searched, only the following localities have been found 

 catalogued: Alsace — Hiiningen, in July; Switzerland — Basle, Valais 

 Alps ; Tyrol — Bozen ; Lower Austria — Vienna ; Southern France — 

 neighbourhood of Lyons. 



3. Turneria hybr. vespertilioides *, Bdv., " Ann. Soc. Lin. Paris," 1827, 

 p. 114, pi. vi., fig. 4 (1827) ; "Icon. Chen. d'Europe, Sphinges,'' pi. ix., fig. 1 (1832) ; 

 " Icones," ii., p. 22, pi. xlix., fig. 3 (1834); "Spec. Gen.," i., p. 175 (1875); 

 Dup., "Hist. Nat.," supp. ii., p. 125, pi., xi., fig. 2 (1835); H.-Sch., " Sys. 

 Bearb.," ii., p. 89, figs. 10, 13 (1846; ; Staud., " Cat.," 2nd ed, p. 36 (1871) ; 3rd ed., 

 p. 101 (1901); Stdfss., " Handbuch," &c, pp. 54, 63 (1896) ; Bart., " Pal. Gross- 

 Schmett.," ii., p. 61 (1899); Mory, "Mitt.Schw.Ent.Ges.," x.,p. 339 (1901).— Imago: 

 Sphinx hippophaes affinis, alis anticis cinereis ; facia [sic] lata sinuataque, 

 cinereo-plumbea nitente, paululumque dilution ad marginem ; macula baseos 

 alba nigro variegata ; punto [sic] lunulaque nigrofuscis obsoletis supra disco, 

 alis posticis rubro-incarnatis basi et limbo nigris ; angulo anali dilution, antennis 

 albis ; corpore cinereo duobus fasciolis albis totidemque nigris cingulato. 

 Larva, absque cornu nee tuberculo, lsevis oeneo [sic] viridis duobus lineis 

 pallidis lateralibus a capite ad ultimum segmentum ; corpore punctis multis 

 adsperso, stigmatibus aurantiacis nigro cinctis ; maculis duobus carneis ellipticis 

 in anali segmento ; capite cinereo ventro pedibusque carneis, quorum ad basin 

 lineola rubella. The larva of this species much resembles those ol hippophaes 

 and vespertilio. Its body is bronze-green, dotted with whitish ; each side is 

 traversed by a greenish -white line along its whole length. There is no trace 

 of horn or wart on the last segment ; the stigmata are orange, surrounded by 

 a black aureole, above that of the last segment one notices an oblong spot of a 

 fleshy-red and some blackish transverse lines. Immediately above the base 



* Assumed parentage, $ hippophaes x ¥ vespertilio. 



D 



