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| The black chest section (thorax) bulges at the shoulders. These bulges are yellow. The triangular scutellum is also yellow. The first abdominal segment also has yellow bulges at the sides. The entire abdomen is yellow and black and is thus wasp-like in appearance. In the females o... | | |
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| The upper surface of the chest (thorax) is light grey to dark grey in colour. Three broad black stripes run lengthwise, flanked on both sides by a short black stripe. The abdomen has a striking checked pattern in silvery and dark grey. The upper chitinous plates (tergites) of the 3rd and... | | |
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| Adult rubytail wasps reach body lengths of 4 - 13 mm. Their size depends on the conditions of development? environmental conditions present during the larval stages. Their bodies are slim and vary in shape. The head and chest (thorax) are bright blue-green in colour. The upper surface has a metallic gold sheen. The upper surface of the abdomen shimmers red, copper red, purple or orange, while the underside is metallic blue or green. 4 teeth are visible at the rear edge of the ba... | | |
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| On the underside of the chest (thorax) are the defensive glands which emit an unpleasant-smelling secretion as a defense mechanism. This can be squirted over a distance of several decimetres. The abdomen is black at the edges (connexivum) and has yellowish-white markings. The side margi... | | |
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| ...ges with body lengths of 0. 6 - 5 mm. Most species average around1. 5 mm in length. Scatopsidae are hairless They cannot sting. Due to their appearance they can be confused with black flies (Simuliidae) but they normally do not have an arched chest (thorax). | | |
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| ...uests with ants. The larvae breathe with the help of tube-like elongated openings. At the end of the last larval stage, the larvae pupate inside their outer skin. Within the chrysalis, the Scatopsidae breathe through tubes, which branch off from the thorax. | | |
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| The eyes of the larvae are red. Their antennae and legs are transparent, while the rest of the body is yellowish. From the beginning of the 2nd larval stage on (5 days) the nymphs start eating. The head, thorax, antennae and legs are now black. There is a yellow patch on each outer side of the upper surface of the chest. The abdomen is red, as are the 2nd, 3rd and 4th segments of the antennae. In the 3rd and 4th larval stages (7 days), the body shape chang... | | |
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| ... 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 lighter tips.
The thorax is black. The first segments of the abdomen are black The tip of the male’s abdomen is bright crimson. The wings go back as far as the hind knees and are mottled in the middle. The top halves are very dark. Due to their appearance, Omocestus rufipes... | | |
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