Results 141 to 150 of about 200,215 (193)

Sabotaging Behavior and Decision-Making in Larvae of the Queen Butterfly Danaus gilippus

Journal of Insect Behavior, 2015
Sabotaging behavior and decision-making during ontogeny in herbivorous insects remain largely underappreciated. Insects that use hosts bearing articulated laticifers would be expected to cut trenches to deactivate this plant defense. Contrary to this expectation, larvae of Danaus erippus display vein cutting when feeding on Asclepias curassavica, a ...
P. D. S. Ferreira, D. Rodrigues
semanticscholar   +3 more sources

Sex Pheromone of the Queen Butterfly: Biology

Science, 1969
Males of the queen butterfly Danaus gilippus berenice , deprived of the two extrusible brushlike "hairpencils" at the rear of their abdomen, are capable of courting females but incapable of seducing them. In normal courtship, an aphrodisiac secretion associated with the hairpencils is transferred by way of tiny ...
T. E. Pliske, T. Eisner
semanticscholar   +3 more sources

Sex Pheromone of the Queen Butterfly: Chemistry

Science, 1969
Two major components in the "hairpencil" secretion of the male of the queen butterfly ( Danaus gilippus berenice ) have been identified. One, a crystalline ketone (2,3-dihydro-7-methyl-1 H -pyrrolizin-1-one), is known from another danaid butterfly. The other, a viscous terpenoid alcohol (
J. Meinwald, Y. Meinwald, P. Mazzocchi
semanticscholar   +3 more sources

The status of the African Queen butterfly, Danaus chrysippus (Linnaeus, 1758) (Lepidoptera: Nymphalidae, Danainae), in the Canary Islands, including an irruption on Fuerteventura

Entomologist's Gazette, 2021
Examination of museum collections and field work have established that Danaus chrysippus once inhabited five of the seven Canary Islands but is probably now confined to La Palma, La Gomera and Fuerteventura. It may be extinct on Gran Canaria and Tenerife.
David A S Smith
semanticscholar   +2 more sources

The structure of the antennae of the Florida Queen butterfly, Danaus gilippus berenice (Cramer)

Journal of Morphology, 1968
AbstractInterest in the structure of the antennae of the Florida Queen butterfly arises from the finding that a pheromone is active in their courtship. Light and electron microscopic techniques were used to study the sensilla on the antennae and three types of sensilla with perforated walls were identified.
J. Myers
semanticscholar   +3 more sources

Olfaction in the Florida Queen butterfly: Honey odour receptors

Journal of Insect Physiology, 1970
Abstract In an investigation of the role of olfaction in the life of the Florida Queen butterfly it has been found that honey odour can elicit proboscis extension. Selective blocking of antennal receptor types shows that only the short, thinwalled pegs are necessary for this response and only 5 to 10 per cent need be exposed for detection of honey ...
J. Myers, Mary E. Walter
semanticscholar   +2 more sources

A behavioural analysis of the courtship pheromone receptors of the Queen butterfly, Danaus gilippus berenice

Journal of Insect Physiology, 1969
Abstract The chemo-stimulatory role of the male hair-pencils in the courtship behaviour of the Queen butterfly has been quantified experimentally in the natural habitat. Approximately 600 individuals were studied. Courtship success is substantially reduced either by removal of the male hair-pencils or by blocking the chemoreceptors on the female ...
J. Myers, L. Brower
semanticscholar   +2 more sources

The structure and development of the hairpencil glands in males of the queen butterfly, Danaus gilippus berenice

Journal of Morphology, 1971
AbstractQueen butterflies do not mate until the male has brushed the tufts of his scented, abdominal ”︁hairpencils„ over the female's head and antennae. The trichogen cells located at the base of each hairpencil are secretory. Presumably, these cells produce the sex pheromone necessary for mating.
T. E. Pliske, M. Salpeter
semanticscholar   +3 more sources

An evolutionary-ecological model of the evolution of migratory behavior in the Monarch Butterfly, and its absence in the Queen Butterfly

Acta Biotheoretica, 1982
This paper presents a model that generates testable hypotheses concerning the evolution of long-range migratory behavior in the Monarch Butterfly,Danaus plexippus and the general absence of such behavior in a related form, the Queen,D. gilippus (Lepidoptera: Nymphalidae: Danainae).
A. Young
semanticscholar   +2 more sources

Geographic and Temporal Variation of Cardenolide-Based Chemical Defenses of Queen Butterfly (Danaus gilippus) in Northern Florida

Journal of Chemical Ecology, 1998
The cardenolide-based chemical defenses of danaine butterflies vary macrogeographically. This study demonstrates that these defenses also vary both microgeographically and temporally. We sampled 280 queen butterflies (Danaus gilippus) at 11 sites in northern Florida during the summer of 1993 and determined their cardenolide concentrations and thin ...
Raymond A. Moranz, L. Brower
semanticscholar   +2 more sources