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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 spiny caterpillars are striking in appearance, with black bodies and a line of eight reddish-orange dots running down the back (aposematic, warning coloration). The prolegs are dark red. The body is covered with short hairs and black spines and white dots. [2] The fully grown mourning cloak caterpillars attain two inches in length. [3]
Many caterpillars are cryptically colored and resemble the plants on which they feed. An example of caterpillars that use camouflage for defense is the species Nemoria arizonaria. If the caterpillars hatch in the spring and feed on oak catkins they appear green. If they hatch in the summer they appear dark colored, like oak twigs.
This gigantic green caterpillar was found wandering over a stump at a cottage in Parry Sound, Ontario. It was as big as a small sausage and the mandibles looked strong enough to cut through a ...
Caterpillars grow up to 7 cm. Early instar caterpillars are green and brown, with sparse hairs that are spiky in shape. As they grow, they come to feature orange feet and head, are banded predominantly black and white with two orange bands (respectively on the final abdominal segment and on the mesothorax) and the sparse hairs become club-shaped with white tips.
Larvae might be confused with the similarly flattened larvae of lycaenid butterflies, but those caterpillars have prolegs, are always longer than they are wide, and are always densely covered in short or long setae (hair-like bristles). The head is extended during feeding in the lycaenids, but remains covered in the Limacodidae.
Euclea delphini Larva The front of a Spiny Oak Slug (Euclea delphinii). The larva is flattened and ovoid in outline, with spiny tubercules along the back and sides. These are venomous, producing symptoms in humans that vary from mild itching and burning to more serious reactions that require medical attention (Florida Poison Information Center 2015).
The tree produces spiky green fruits about the size of a golf ball, which turn brown and drop off the tree over an extended period beginning in fall and continuing over the winter.