262 Studies in the Theory of Descent. 



subdorsal line. The ground-colour in most of 

 these species is of the same green as that of the 

 leaves of their food-plants ; some are brown, i.e. 

 earth-coloured, and in these the markings do not 

 appear so prominently ; others again possess very 

 striking colours (A. Atropos), the oblique stripes 

 in these cases being very vivid. Only M. Has- 

 drubal separates itself completely from this 



62 See the figure in Sepp's Surinam Lepidoptera, P. 3, 

 PI. CL, 1848. A specimen in alcohol of the adult caterpillar 

 is in the Berlin Museum. [The following is the synonymy of 

 the above mentioned species : Macrosila Hasdrubal, Walk.= 

 Pseudosphinx (Sphinx] Tetrio, Linn.; M. Cingulata = Protoparce 

 (Sphinx) Cingulata, Fabr. ; M. Rustica = Protoparce (Sphinx) 

 Rustica, Fabr. ; Sphinx Convolviui, Linn. = Protoparce Convol- 

 vuli ; S> Carolina, Linn. = P t Carolina; the other species 

 remain in the genera, as given above. The following additional 

 species of Sphingincz and Acherontiincz have been figured by 

 Butler \-Pseudosphinx Cyrtolophia, Butl., from Madras (loc. at. 

 PI. XCL, Figs, ii and 13); Protoparce Orientalis, Butl., from 

 India, China, Java, &c. (PL XCL, Fig. 16); Diludia Fates, Butl. 

 from India, &c. (PL XCL, Fig. 18); Nephele Hespera, Fabr., from 

 India, Australia, &c. (PL XCL, Fig. 20); Acherontia Morta, 

 Hiibn., from Java, China, India, &c. (PL XCIL, Fig. 9); and 

 A. Medusa, Butl,, from nearly the same localities as the last 

 (PL XCIL, Fig. 10). Most of these species fall under Dr. 

 Weismann's general remarks, so that it is unnecessary to give 

 detailed descriptions. The most divergent marking is that of 

 P. Cyrtolophia, which has a broad white dorsal line bordered 

 with pink, and two large pink ovals on the back of the four 

 anterior segments, the hindmost and larger of these being 

 bisected by the dorsal line. In N. Hespera the subdorsal line is 

 present on segments 6 to 1 1 only, and it is highly significant 

 that the oblique stripes are absent from these segments, but 

 are present on the anterior segments, where the subdorsal line 



