pine sawflies larvae
This sawfly larva feeds for about six weeks. The sawfly larvae may be confused with caterpillar and moth larvae, as they all look like worms crawling around on the leaves and stems of plants. Instead of a stinger, the female has a sawlike ovipositor that she uses to make a slit in the edge of a needle. They are worm-like and crawl around like worms and have many different patterns. They are related to and resemble bees in size and shape. The insect spends the winter as eggs deposited in pine needles. The larvae feed primarily on white pine and other five-needle pines, The white pine sawfly (Neodiprion pinetum) larva is cream color with four rows of black spots on the body and a black head. You’ll often find them crawling around on leaves, especially on the edge. Adult pine sawflies are seldom seen. Life Cycle - European Pine Sawfly Fox-coloured sawfly (Neodiprion sertifer) is 7-9mm long and pale orange-brown. European pine sawfly larvae are gray-green with black heads, there is a dark gray stripe along each side of the body (see a short video of the larvae here). The European pine sawfly (Neodiprion sertifer) is found in large numbers and "waves" in mass as a means of scaring off predators. They have two pairs of transparent wings but are not capable of stinging. It feeds on mugo pines as well as many other pines. It feeds primarily on white pine, but can be found on red, pitch, and mugo pines. Overwintering eggs that have been deposited in the needles can be easily located after a heavy frost turns the egg-laying scar yellow. She deposits a single egg into each slit and several eggs in a needle.The larvae are caterpillar-like with six or more pairs of prolegs on the abdomen. They can feed on many pines including Scotch, Eastern white, and Austrian. (See "Pine Sawfly – Species" for a detailed description of larvae.) Adult pine sawfly (Diprion pini) are 10mm long brown winged insects, The larvae reach up to 25mm long and are pale green in colour with a brown head and black markings. Sawfly larvae look like small caterpillars. They feed on older mature leaves, leaving the emerging needle alone. Sawfly larvae have the curious habit of raising their heads and tails in a threatening manner when disturbed. Moth and butterfly caterpillars have five or fewer prolegs. The larvae of sawflies are superficially similar in appearance to moth caterpillars.
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