Assessor: Dave Edge
A full conservation assessment of this taxon was done according to IUCN methodology and it was Red Listed as "Endangered". The results are published in:
MECENERO, S., BALL, J.B., EDGE, D.A., HAMER, M.L., HENNING, G.A., KRÜGER. M., PRINGLE, E.L., TERBLANCHE, R.F. & WILLIAMS, M.C. (eds) 2013. Conservation assessment of butterflies of South Africa, Lesotho and Swaziland: Red List and Atlas. Johannesburg & Cape Town: Saftronics (Pty.) Ltd. & Animal Demography Unit. 676 pp.
The red listing also appears on SANBI's Red List website:
http://speciesstatus.sanbi.org/assessment/last-assessment/968/
It can be seen by studying the references that this butterfly has always had a restricted range and it is never found in great numbers. It can be inferred that it has a slow population growth rate and would not be able to withstand exploitation.
MECENERO, S., BALL, J.B., EDGE, D.A., HAMER, M.L., HENNING, G.A., KRÜGER. M., PRINGLE, E.L., TERBLANCHE, R.F. & WILLIAMS, M.C. (eds) 2013. Conservation assessment of butterflies of South Africa, Lesotho and Swaziland: Red List and Atlas. Johannesburg & Cape Town: Saftronics (Pty.) Ltd. & Animal Demography Unit. 676 pp.
PRINGLE, E.L.L., HENNING, G.A. & BALL, J.B. 1994. Pennington's butterflies of southern Africa. 2nd edn. Struik Winchester, Cape Town. 800 pp.