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Ornithoptera alexandrae, the Queen Alexandra's birdwing, is the largest species of butterfly in the world, with females reaching wingspans slightly in excess of 25 to 28 cm (10 to 11 in). [ 4 ] [ 5 ] This birdwing is restricted to the forests of the Oro Province in eastern Papua New Guinea .
With a wingspan between 18 and 23 centimetres (7.1 and 9.1 in), it is the largest butterfly in Africa and among the largest butterflies in the world. The shape of the wings differ between the males and females. The wings are long and narrow and the ground colour is orange brown with black markings.
Butterflies send ultraviolet signals using UV reflectance or UV absorption. The former is accomplished through the use of structural color, the reflection of certain frequencies of light via constructive interference. The production of this structural color in butterflies has been elucidated through the study of Eurema lisa by Helen Ghiradella. [3]
Media in category "Images of butterflies and moths" This category contains only the following file. Plate II Kallima butterfly from Animal Coloration by Frank Evers Beddard 1892.jpg 1,695 × 2,722; 1.77 MB
A Bitter electromagnet or Bitter solenoid is a type of electromagnet invented in 1933 by American physicist Francis Bitter used in scientific research to create extremely strong magnetic fields. Bitter electromagnets have been used to achieve the strongest continuous manmade magnetic fields on earth―up to 45 teslas , as of 2011 [update] .
Papilio ulysses, the Ulysses butterfly (also known as the blue mountain swallowtail butterfly or Blue emperor), is a large swallowtail butterfly, in the subgenus Achillides, of Australia, Indonesia, Papua New Guinea and the Solomon Islands.
This makes it the world's second largest butterfly. The African giant swallowtail reaches an almost equal wingspan. Male. The Goliath birdwing's forewings are black. The costal edge is green and beyond the medium black bar is a large green triangle which reaches the dorsum but not the black sternum. The underside is greenish yellow and greenish.
Morphological analysis reveals that P. garamas (endemic to Central America) and P. homerus share a recent common ancestor, suggesting that butterflies may have traveled across no-longer existing land masses between Central America and Jamaica. [4] P. homerus is the largest butterfly in the genus Papilio, which contains four