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Butterfly mating systems have great variation, including strict monandry, one male and one female, to polyandry, having many mates of the opposite sex. Typically Ornithoptera tend to be polygamous , mating with more than one individual.
Female: Female Queen Alexandra's birdwings are larger than males with markedly rounder, broader wings. The female can reach, and slightly exceed, a wingspan of 25 to 28 cm (10 to 11 in), a body length of 8 cm (3.1 in) and a body mass of up to 12 g (0.42 oz), all enormous measurements for a butterfly.
Troides helena, the common birdwing, is a butterfly belonging to the family Papilionidae. It is often found in the wildlife trade due to its popularity with butterfly collectors . The butterfly has seventeen subspecies.
Female: O. paradisea is strongly sexually dimorphic and the significantly larger female covers the upper range of the wingspan. The basic colour is dark-brown. The basic colour is dark-brown. Two groups of white spots dominate the forewing and on the hindwings there is a white area with a yellow outer edge.
Female: The female covers the upper range of the wingspan. It is significantly larger than the male. The basic colour of the female is dark brown. At the outer edge and in the middle of the wing there are some white spots. On the hindwings there is a big white area. The outer edge of the white area is yellow.
Image credits: @dianamurguta Another extraordinary butterfly to mention could be Queen Alexandra's birdwing. They are known as the biggest butterflies in the world, reaching an impressive wingspan ...
Female: is sexually dimorphic. The female covers the upper range of the wingspan. It is significantly larger than the male. The basic colour of the female is dark brown. The veins are bordered by white. There is a small yellow area with dark veins on the hindwings. The underside is a similar to the upperside.
A closely allied species, the New Guinea or Priam's birdwing (Ornithoptera priamus) reaches 19 cm (7.5 in) and is the largest butterfly species found in Australia, but it is not endemic. O. euphorion is quite closely related to O. richmondia, differing by its greater size and more extensive green markings in the male. [3]