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| Charaxes jasius is the largest of the European butterflies and the only example of this genus in Europe. Female specimens are slightly larger than males and reach wing spans of 80 - 100 mm. The former can have front wings which are over 40mm in length. The upper surface of the front wings is light brown. There are yellowish-brown to orange-brown bands of colour at the edges which on the top edge of the hind wings are extended in black bezel. The hinder area of the wings has the same markings. The hind wings have 2 short tails (... | | |
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| The Nigma walckenaeri is the largest species of Dictynidae in Central Europe. 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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| These spiders have 2 claws on their heads, hence the name "two- clawed-spider". The abdomen is brightly coloured. Crab spiders have 2 very long pairs of front legs. In the males, the first pair of legs can be five times longer than the hind pair of legs. The two pairs of front legs are slightly bent in resting position and face forward. These creatures limbs also enable them to walk sidewards and as a result of this they bear a striking resemblance to crabs. | | |
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| The adult butterfly has a wingspan of 55 - 65 millimetres. The front wings have black edges. The females have an additional black spot on the front wings. The underside of the rear wings is grey-green. | | |
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| ... have black brown, greyish brown to yellowish-brown or very occasionally reddish brown sides with shiny green backs, while the males have dark brown to black sides with yellowish brown backs.
The underside of the body of both sexes is (moving from front to rear) first green, then yellow then red. This colour change constitutes the most important identifying characteristic of the species.
The front side of the head is black to blackish brown in both sexes. The colouration of the crown of the head corresponds to that of the back in both sexes. The antennae are black and have lighter tips. The maxillary and labial palpi are dark and also have li... | | |
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| ...he upper part of their facets eyes consists of large facets since the lower part consists of small individual eyes (Ocelli). The female Bibio clavipes have much smaller eyes than the males. Their eyes are pure compound eyes and are hairless.
The front wings are colourless but have dark markings on their edges. The females have a spike on the tibiae of their front legs which is used for digging. | | |
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Adult females can reach body lengths of 3-5 mm, males, 3-4. 5mm. The sexes are similar in shape and are light brown, reddish-brown or dark brown in colour. The front part of the body (cephalothorax) is pale yellowish brown to reddish brown in colour and without markings. The weak dark side edges are often difficult to recognize. On the surface of the back are dark-brown stripes which widen in the direction of th...
...is pale yellowish brown to reddish brown in colour and without markings. The weak dark side edges are often difficult to recognize. On the surface of the back are dark-brown stripes which widen in the direction of the eyes without touching them. The front eyes and rear side eyes are close together. Sometimes they even touch. The deep black fangs (chelicera) are compared with the enlarged eyes. Their poison claws are long and thin. | | |
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