Artitropa discussion When Riley (1925) revised the continental African species, he did not examine the genitalia, working on wing pattern and to a limited extent on early stages. Evans (1937) seems to have accepted Riley’s conclusions and only added two taxa. For his revision, Evans seems to have dissected only one male of each species, and not dissected the different subspecies of A. erinnys and A. milleri. Thus he dissected a male A. e. erinnys from Zululand (within KwaZulu-Natal, South Africa) which is representative of the type locality (Port Natal) and a male A.m. milleri from Katanga, DR Congo, which is not representative of the type locality (Tukuyu, Tanzania). Further genitalia dissections are needed to assess the present classification and the status of the putative taxa recognised here. We suspect that A. milleri may comprise at least two species, milleri and coryndon, but perhaps more, but these have yet to be assessed based on their genitalia (T.B. Larsen in prep.) or by molecular methods. The head markings of the caterpillars are more useful for separating species and species-groups, than for discriminating between subspecies of Artitropa. Thus, we can generalise that the caterpillars of A. comus, A. reducta and A. principetome are all very similar. Equally, there seem to be some differences between the caterpillars of the different populations / subspecies of A. erinnys and A. milleri, but our observations have not been sufficient to adequately document the degree and frequency of individual variation within populations. Our impression is that populations are generally quite consistent, but that atypical markings are not that rare. For example, we have reared A. erinnys vansomereni frequently, and although the markings are normally similar to the individual shown in Figure 26.2, individuals with much lighter head markings (Figure 26.3) and much darker head markings (Figure 26.4) were also documented. Again, the limited sample of three photographed individuals of A. erinnys comoranum (Figure 34) can ...