156 
HYBRIDS OF SPHINGIDAE. By B. Gehlen. 
worms- 
bacheri. 
ocello- 
planus. 
melania. 
ocello- 
astylus. 
platei. 
back to the subdorsal is coloured thus, laterally and ventrally it is paler grey-brown. The subdorsal extends 
over the entire length but is intersected on the 4th segment and posteriorly to same it consists of convexly 
shaped arched streaks; from the 9th segment onwards it is distincter and finally merges clearly and distinctly 
in the horn; 6 oblique stripes (the usual 7th stripe of Sphingidae larvae that merges in the horn is missing). 
Horn thick-set, graphite-grey, slightly curved, its tip as wide as the middle. Food plants: Ampelopsis, Ac- 
tinidia, more rarely on Araceae. Pupa woody grey-brown, dorsally pale earthy grey with black dorsal line. 
Sheath of proboscis projecting frontally 6 mm. Cremaster with 2 pairs of bristly spikes. 
The following Sphingidae forms from Japanese territory were described by Matstimttka in 1921. The 
descriptions were unfortunately not available to me, as the literature relating to same was destroyed at the 
time by the earthquake: Dolbina parva, curvata, lateralis, Oxyambulyx takamulcui, Smerinthus tokionis, Rhagastis 
trilineata. 
We are now giving illustrations of the following Sphingidae dealt with in Vol. 2: Meganoton scribae 
Aust. (p. 234) (12 a), Marumba gaschkewitschi complacens Wkr. (p. 241) (12 d), Pergesa elpenor ab. daubi Niep 
(p. 257) (13 e). 
Appendix. 
Hybrids of Sphingidae. 
By B. Gehlen. 
I. Hybrids of the Genera Calasymbolus, Smerinthus, Amorpha. 
A. Primary Hybrids. 
C. hybr. wormsbacheri John (12 f) ( Calasymbolus myops Abb. & Sm. x S. ocellata L. <j>) rather inclines 
to resemble myops, but is about midway between the parent forms. In comparison with myops the apex 
of forewings is more acute, the nice violet dusting is absent, the yellow spots at apex and anal angle of 
forewings and on costa of hindwings are absent, stigma only indicated. Hindwings are not yellow, but pale 
rose with relatively very large black eyespot, which as in myops has a blue pupil. Underside is nearly the 
same as in myops, only here also the yellow is suppressed and replaced by dull reddish grey. 
S. hybr. ocelloplanus John (12 e) (S. ocellata ocellata L. x S. planus Wkr. 9)- Antennae almost as 
thick as those of planus. Foretibiae with shortened spur process, as is characteristic of ocellata. The eyespot of 
hindwings varies in size between that of ocellata and planus. In this hybrid the difference in size between 
A and £ is remarkable; whilst the SS are 75 mm, at most 80 mm expanse, the $$ are 90—95 mm. 
S. hybr. melania John (12 f) (S. planus Wkr. x S. ocellata ocellata L. §) resembles the reciprocal 
cross exactly (also the spur on foretibiae is present) only the eyespot of hindwings is never as large as in 
planus and the disparity in size between the sexes is not evident; wing expanse for $ and $ is 75 mm on 
the average. 
S. hybr. ocelloastylus John (12 f) (S. ocellata L. C x Calasymbolus astylus Drury 9) is very close 
to the product of the reciprocal cross, hybr. interfaunus, but differs by the increased ruddiness on forewings 
and hindwings; further the antemedian band of forewings extends more straightly from costal margin to anal 
angle, whilst in interfaunus Neumog. (Vol. 2, p. 262) it is much more sharply angulated immediately below 
the cell. 
S. hybr. platei Stndf. (12 f) (nom. nud. sine descript.) (S. ocellata L. $ x S. jamaicensis geminatus 
Say $) inclines in contour of wings, colouration and markings more to ocellata, in size it is midway between 
the two parent forms. On forewings the bands and dark marginal area of ocellata are present, but also the 
apical spot of geminatus. The dark antemedian band forms a right angle. The small dark cliscal spot of ocellata 
(between the 2nd and 3rd radialis) is only faintly indicated. The red of hindwings is generally like that 
of ocellata, in such cases the pale marginal area of geminatus is quite absent; sometimes there is a paler marginal 
area, but never so pronounced or clearly marked as in geminatus. The eyespot is more like that of ocellata in 
