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snakefly uk

Order Neuroptera (lacewings)… Adults small to medium; head prognathous, elongated, tapering posteriorly; biting mouthparts; antennae filiform; prothorax elongated, cylindrical; 2 pairs of similar elongated wings, held rooflike over abdomen in repose; female with long, slender ovipositor. Snakefly larvae are often found under tree bark where they prey on other insects, but much more work is needed to elucidate the life cycles. Snakefly larvae go through as many as 10 moltings before reaching adulthood. It is not an organ of defense and the Snakefly does not sting. Snakeflies are rarely encountered as they spend most of their adult lives in the tree canopy. Both larval and adult Snakeflies are predators so they are beneficial insects.

Order Raphidiodea (snakeflies) Which of these are sold to farmers to help control insect pests?

Get kids back-to-school ready with Expedition: Learn! Head prognathous, elongated; biting mouthparts; filiform antennae; prothorax elongated, cylindrical; 2 pairs of similar elongated wings, at rest held rooflike over abdomen; larvae elongated, flattened, with biting mandibles. Long necks make this insect look like it has the head of a snake. The adult snakefly has a dark, shiny, flattened head and a prolonged necklike thorax. Adults are not often seen as they spend much of their time high in the tree canopy; newly emerged specimens can be found at lower levels, and the females descend to oviposit, but otherwise any snakeflies seen by the casual observer have probably been dislodged from the canopy by strong winds. The adult flies usually emerge in May. The “stinger” is actually the ovipositor of the female insect, and is used in the egg laying process. They are distributed widely around the globe, the majority of species occurring in Europe and Asia, but also being found in certain regions of Africa, western North America and Central America.

Worldwide there are around 225 known species in 2 families; in Britain there are 4 species in 1 family.©2020 Royal Entomological Society - Registered charity no.


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It can raise its head above the rest of its body, much like a snake preparing to strike.

There is just one family (Raphidiidae) with four British species.

In North America, they are found west of the Rocky Mountains, and range from southwest Canada all the way to the Mexican-Guatemalan Border, which is the farthest south they have been foun… Both the adults and larvae are predatory, though adults are also reported as feeding on pollen.


This is a Snakefly in the insect order Raphidioptera. Snakeflies are usually found in temperate coniferous forest. There are three other species of snakefly in the UK, but they are all found on conifer trees (Raphidia confinis, Inocellia Crassicornisand Raphidia maculicollis). Be on the lookout for your Britannica newsletter to get trusted stories delivered right to your inbox. Order Raphidiodea (snakeflies)

History at your fingertips Of the three orders in the Neuropterida, the Raphidioptera may be the most basal, leaving the Neuroptera and Megaloptera as sister-groups. In Africa, they are only found in the mountains north of the Sahara Desert. Snakeflies have transparent wings that are longer than their actual body. Snakefly, (order Raphidiodea or Raphidioptera), any of more than 175 species of insects that are easily recognized by their small head and long, slender “neck,” which is actually the elongated prothorax. Unlike other insects, the snakefly pupa is mobile, leaving its pupal cell for day trips or to relocate. These are the snakeflies (Raphidiodea), so called for their body shape, and the dobsonflies and alderflies (Megaloptera). This process can take 2 to 6 years.

Snakefly larvae are often found under tree bark where they prey on other insects, but much more work is needed to elucidate the life cycles. They get the common name of snakeflies from their elongate pronotum which is mobile and can be elevated such that the insect resembles a snake about to strike at its prey; the German name of Kamelhalsfliegen, or camel-neck flies, is equally appropriate. There are four UK species - Subilla confinis (Stephens, 1836), Atlantoraphidia maculicollis (Stephens, 1836), Phaeostigma notata (Fabricius, 1781) and Xanthostigma xanthostigma (Schummel, 1832). For completeness of discussion, all three groups are described in this article, but they are considered to be three separate orders.… Larvae elongated; head and prothorax large, polished; biting mandibles; abdominal…

The eggs hatch within three weeks and pupate in the autumn or the following spring.

Only two are known from Nottinghamshire, although we suspect …

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