_Phyletic Development of the Markings of the Sphingidæ. Summary and
Conclusion_, p. 370.
The oldest _Sphingidæ_ were devoid of marking, 370. Longitudinal
stripes the oldest form of marking, 371. Oblique striping, 373. Spot
markings, 375. The first and second elements of marking are mutually
exclusive, but not the first and third, or the second and third, 377.
Results with reference to the origin of markings; picture of their
origin and gradual complication, 380. General results; rejection of a
phyletic vital force, 389.
=II.=