Template:Johnson,K, 1991a
- Johnson, K., 1991. Neotropical Hairstreak Butterflies: Genera of the "Calycopis/Calystryma Grade" of Eumaeini (Lepidoptera, Lycaenidae, Theclinae) and their Diagnostics. Reports of the Museum of Natural History, University of Wisconsin, Stevens Point 21: 127 pp. PDF