Bibliography of butterflies

Trigo, José Roberto, and Keith Spalding Brown, Jr.

1983. Contribuição de alcalóides pirrolizidínicos na interação ecológica entre adultos de Ithomiinae (Lep.: Nymphalidae) e plantas. Ciência e Cultura (São Paulo) 35(7, supl.): 513 (July) [general; Brazil]

1990. Variation of pyrrolizidine alkaloids in Ithomiinae: a comparative study between species feeding on Apocynaceae and Solanaceae. Chemoecology 1(1): 22-29, 3 figs., 7 tabs. (March) [general]

Trigo, José Roberto, Keith Spalding Brown, Jr., Silvana Aparecida Henriques and Lauro Euclides Soares Barata

1996. Qualitative patterns of pyrrolizidine alkaloids in Ithomiinae butterflies. Biochemical Systematics and Ecology 24(3): 181-188, 1 fig., 1 tab. (April) [general]

Trigo, José Roberto, Keith Spalding Brown, Jr., Ludger Witte, Thomas Hartmann, Ludger Ernst and Lauro Euclides Soares Barata

1996. Pyrrolizidine alkaloids: different acquisition and use patterns in Apocynaceae and Solanaceae feeding ithomiine butterflies (Lepidoptera: Nymphalidae). Biological Journal of the Linnean Society 58(1): 99-123, 3 figs., 11 tabs. ([15] May) [general; Brazil]