Larvae '',
Crows Nest Sphingid larvae tend to be specific feeders, rather than generalists. Some species can tolerate quite high concentrations of specific toxins.
Tobacco hornworms (
Manduca sexta) detoxify and rapidly excrete
nicotine, as do several other related sphinx moths in the subfamilies
Sphinginae and
Macroglossinae, but members of the
Smerinthinae that were tested are susceptible. The species that are able to tolerate the toxin do not sequester it in their tissues; 98% was excreted. However, other species, such as
Hyles euphorbiae and
Daphnis nerii, do sequester toxins from their hosts, but do not pass them on to the adult stage. of what this lepidopteran might look like, and, concurring with his colleague, added: The predicted sphingid was discovered 21 years later and described as a
subspecies of the one African species studied by Wallace:
Xanthopan morganii praedicta, for which, the subspecific name
praedicta ("the predicted one") was given. The Madagascan individuals had a pink, rather than white, breast and abdomen and a black apical line on the forewing, broader than in mainland specimens. Molecular clock models using either rate- or fossil-based calibrations imply that the Madagascan subspecies
X. m. praedicta and the African subspecies
X. m. morgani diverged 7.4 ± 2.8 Mya (million years ago), which overlaps the divergence of
A. sesquipedale from its sister,
A. sororium, namely 7.5 ± 5.2 Mya. Since both these orchids have extremely long spurs, longspurs likely existed before that and were exploited by long-tongued moths similar to
Xanthopan morganii praedicta. The long geological separation of subspecies
morgani and
praedicta matches their morphological differences in the color of the breast and abdomen. ==Relationships and species==