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| The wing covers (elytra ) are also black but towards the wing tips they turn a lighter, more reddish-brown colour. The inseam of the wings is formed to fine thorns. The legs are long, powerful and black in colour. At the bottom of the 1st and 2nd tarsal joints of the rear leg pair is a groove running horizontally. The tibia and feet (tarsi) are cov... | | |
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| The acorn weevil reaches body lengths of 4 - 9 mm. Its colouration varies from reddish-brown to yellowish-brown. The head of the beetle is extended by a long proboscis and is as long as the female body and only slightly shorter than the male’s. Due to its appearance, the acorn weevil can be confused with a related species, the hazelnu... | | |
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| Acorn weevil larvae are 9 - 10 mm long. Their bodies are yellowish-white in colour and without legs. The head is reddish-brown and lacks eyes. The larvae eat out the core of the acorn. In autumn, when the damaged acorns fall from the tree, the larvae, which have now reached their full size, bore their way out and dig into the ground, where they settle themselves in sm... | | |
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| After mating, the fertilized females lay their yellowish to reddish-brown eggs, individually or in small groups, on the food plants of their larvae. The larvae are yellowish after hatching and resemble caterpillars. They have 8 small pairs of legs attached to the abdomen. Their antennae have 4 - 5 segments. The larv... | | |
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| ... in the females and is round to oval in shape with a white or yellowish-white stripe. The wings bases and the legs of the males are yellow. Dark bands and spots are clearly visible on the legs above the red feet (tarsi). The tibia of the females are reddish. | | |
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| ... 2nd segment, which is about five times longer than it is broad. The 3rd and 4th segments are thready and thin. The 3rd segment is bright yellow at its base. The 4th and outermost antennal segment is of a yellow-black colour. The eyes are large and reddish-brown. The scutellum, which is about as long as it is wide, is also of note. The wings have curved outer edges, are black in colour. | | |
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| At present in Europe, the majority of scoliid wasp species are black and yellow. Male specimens of the subfamily Proscoliinae are almost uniformly black in colour, while females are predominantly of a reddish hue. Scoliidae are more or less hairy. The antennae of the males are straight and divided into 13 segments, while the shorter antennae of the female are heart-shaped or spiral and consist of 12 segments. The mouth parts include an extended probosci... | | |
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| ..., under favourable conditions. For 1 - 2 weeks they feed on the body fluids of the host larvae and from the 4th larval stage on they eat the rest of the host larvae. After their last larval stage, scoliid wasps pupate in cocoons, which are often reddish to brown in colour. The Scoliidae larvae of most Palearctic species overwinter in a preliminary pupae stage. About one month after hatching from the eggs, the adult Scoliidae of the new generation hatch from their cocoons.
Scoliidae are occasio... | | |
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| ...rope. While the females reach body lengths of 4. 5 - 5. 0 mm, the males are 3. 5 - 4. 0 mm in length. They have small groups of white hairs all over their bodies. The front section of the female’s body is yellowish brown to yellow, and the male’s is reddish-brown to brown. The male’s head appears posited markedly higher. The central eyes of these spiders are remarkably small. The front section of the chest (sternum) and the mouthparts are bright yellow in colour. | | |
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| The front section of the body (prosoma) is almost round and is reddish brown or dark brown in colour in the females. The upper surface has a wide, bright stripe in the middle. The prosoma of the males is dark and has a metallic sheen and the stripe often appears indistinct. In all Philodromus aureolus, the posterior ey... | | |
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