Tarsal contact chemoreceptors of the black swallowtail butterfly Papilio polyxenes
(Lepidoptera: Papilionidae) were stimulated with leaf‐surface extracts and ethanolic extracts …

Larvae and pupae of the alpine butterfly Euphydryas cynthia contain three iridoid
glucosides: two of them, aucubin and catalpol, are very common in the Plantaginaceae, but …

The cardenolide extracts from latex and aerial parts of Asclepias fruticosa and of Danaus
plexippus reared on A. fruticosa or A. curassavica were purified by adsorption …

Host-plant chemicals responsible for egg-laying by the chestnut tiger butterfly, Parantica sita,
were identified from one of its hosts, Marsdenia tomentosa. Ovipositing females responded …

Experimental studies of the use of visual and olfactory cues by flower-visiting animals can
shed light on the evolution of floral signalling traits. We examined the functional significance …

A giant danaid butterfly, Idea leuconoe, specializes on apocynaceous plants such as
Parsonsia laevigata, which has been reported to contain pyrrolizidine alkaloids. Females of …

Oviposition by females of the pipevine swallowtail butterfly, Battus philenor, was stimulated
by contact with alcoholic extracts of host foliage. d-(+)-Pinitol was isolated and identified …

The Glanville fritillary butterfly (Melitaea cinxia) in Finland feeds on the plants Plantago
lanceolata and Veronica spicata. These two plant species are distributed heterogeneously …

The iridoid glycoside content of individual adult Euphydryas anicia butterflies from two
Colorado populations was quantitatively determined. At one site (Red Hill), larval host plants …

Floral scent, together with visual floral cues, are important signals to adult butterflies
searching for food-rewarding plants. To identify which compounds in a floral scent are more …