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The first instar: Caterpillar larvae vary in size and are capable of being between 1.5-2.0mm in length. [3] At this stage a hatchling lacks its characteristic coloring and instead tends to be a translucent lime green with green or black tentacles and green protuberances along the skirt which lack the long spiny thorns that are seen in older ...
The caterpillar can reach a length of 13 mm. It may be light green, dark green, light brown, black gray or reddish, with a darker back line. The head is brownish black. Pupa is quite slender, red-brown to black-brown. [11] [12]
Caterpillars have soft bodies that can grow rapidly between moults. Their size varies between species and instars (moults) from as small as 1 millimetre (0.039 in) up to 14 centimetres (5.5 in). [5] Some larvae of the order Hymenoptera (ants, bees, and wasps) can appear like the caterpillars of the Lepidoptera.
The larvae are black with orange spots arranged in lines down the whole body. Their head's prothoracic shield, and the anal plate, are one color, either green or orange with small black dots. [3] A tail-like spine protruding from the back of the body is a typical for sphingid moth caterpillars, known as “hornworms”. [2]
Described and named Phalena plumata caudata by James Petiver in 1700, this was the first North American saturniid to be reported in the insect literature. [2] The initial Latin name, which roughly translates to "brilliant, feather tail", [9] was replaced when Carl Linnaeus described the species in 1758 in the tenth edition of Systema Naturae, and renamed it Phalaena luna, later Actias luna ...
The iridescent green colour of the undersides is a structural colour caused by diffraction and interference of light by microscopic repeating structures forming a diffraction grating in the wing scales. [4] The caterpillars are green with yellow markings along the back. [1] Like other members of the family they are rather sluglike.
The caterpillars grow to about 25 mm long. In color, they vary from light green to a dark brownish green. Light green caterpillars have white lines running down the body from the head to the tip of the abdomen while the darker caterpillars have a black stripe the length of their back.
This small group of similar pest species is known to agriculturists as the cabbage worm compte butterflies (family Pieridae, type genus Pieris, garden whites). The small white ( P. rapae ) is a small, common, cosmopolitan butterfly whose caterpillar has fine, short fuzz and is bright green; it prefers cabbage, broccoli and cauliflower.