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| The yellow flat-footed fly (Agathomyia wankowiczii) is the most well known species. Other common species are from the genus Platypeza. These species include: Bertamyia notata, Paraplatypeza atra and Polyporivora polypori. The oldest fossil remains of flat-fo... | | |
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| Flat-footed flies are small and reach body lengths of 2-3 mm. Their often compact and bumpy bodies are black or yellow in colour. Males are often darker than females. | | |
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| Their heads are black, yellow or sometimes grey in colour with very large complex eyes, which almost touch in the middle of the head on the males and cover the sides of their heads like bowls. The eyes vary in colour from brown to bright red depending on species. The genitalia o... | | |
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| Adult water scavenger beetles reach body lengths of 1 - 50 mm. The shape and colour of these insects varies widely. Their bodies can be round, oval, elongated or compact and their colouring black, brown, yellowish-brown, red, reddish-yellow to yellowish green and dark green. The colours are combined in a variety of ways and the surface of the body can be dull or shiny. The conical shaped antennae of these insects are striking and can have 6 - 9 segments depending on species. On the lower jaw and... | | |
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... oval-shaped, with a very flat underside. They have a slightly metallic sheen, are deep black in colour and shimmer slightly bronze when seen in light.
Adults have short, club-shaped antennae. Their mouthparts (maxillary palpi) are elongated, yellowish to reddish-brown in colour and hair-like (filiform) and may be mistaken for antennae. The maxillary palpi like the antennae often have dark ends. On the wing covers (elytra) are 10 stripes of fine, puncture-like points. These stripes, which ...
...furrow shaped at the rear end, are the main distinguishing feature of the water scavenger beetle. Additional rows from irregular posited series of points appear in the space between the rows from regular posited points. The legs of the beetle are yellowish, yellow-brown or rust-colored. The tarsi appear reddish brown to dark brown in colour.
The hind legs have long hairs that aid in swimming. The water scavenger beetle prefers to live in and on smaller bodies of waters with sufficient sunlight. They are ... | | |
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| The larvae’sbodies appear oval and conical during the early stages of development. They are whitish yellow-orange in colour, have brown heads, and are covered in numerous bristles. There is a pair of bristles on both the middle of the neck and scutellum. On the upper side of the abdomen, a yellowish-red midline is visible. It runs across all segments. Next to it (on each segment) is one pair of brown bristles. There is a dark-brown dot on both edges of each segment. . The outer sides of the abdomen also have some bristles and there are mo... | | |
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| ... June in clutches of 60-70 eggs, which are laid on the lower surface of the leaves of the food plants of the hatching larvae. A female can lay up to 900 eggs. The eggs are approximately 0.5 x 0.9 mm in size, oval to cylindrical in form and ochre-yellow-orange in colour. | | |
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| The upper surface of the hind wings of the males and females is white. The underside of the hind wings is likewise white but with yellow and black scales, which appear as greenish-white veining and serve as excellent camouflage. This effect is augmented by the male orange tip’s ability to rotate their forewings until they are completely behind the hindwings, so that when their wi... | | |
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| ...re fusiform (tapered at both ends) and initially white in colour, later bright orange, then red. After 4-12 days the caterpillars hatch. They are elongated and reach body lengths of 30-35 mm. Young larvae up to the 2nd moulting are reddish-yellow which changes to yellowish brown, in the 3rd to 4th larval stage. above whitish-green and laterally known with fine-grained black dotting (warts). At the end of the last larval stage they are cyan in colour with a dark-green underside. The caterpillar has little green fe... | | |
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| ... forming a patch. These stripes differentiate Aeshna cyanea from other Aeshna species. The colour of the abdominal markings differ according to age and gender.). On the upper surface of the abdomen of the males are blue to blue-green or sometimes yellow pairs of spots; in the females greenish hues predominate. The females have an ovipositor at the end of their abdomens, whereas the males have claspers with which they hold the female during mating. The females have a cylindrical abdomen. | | |
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