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Indian moon moth (Actias selene) larva with some of the spiracles identified Scanning electron micrograph of a cricket spiracle valve. A spiracle or stigma is the opening in the exoskeletons of insects, myriapods, velvet worms and many arachnids to allow air to enter the trachea.
Indian moon moth (Actias selene) with some of the spiracles identified Scanning electron micrograph of a cricket spiracle valve. Insects have spiracles on their exoskeletons to allow air to enter the trachea. [1] [page needed] In insects, the tracheal tubes primarily deliver oxygen directly into the insects' tissues. The spiracles can be opened ...
Spiracle or spiraculum may refer to: Spiracle (arthropods), opening in the exoskeletons of some arthropods; Spiracle (vertebrates), openings on the surface of some ...
Second instar larvae of the family Sarcophagidae are 4.0 to 10.0 millimeters long and closely resemble the third instar with the exception being that the posterior spiracle has only two openings. Third instar: Third instar larvae are 9.5 to 20 millimeters long. The mandibles are by now large and strongly curved.
An important microscopical diagnosis is the presence of 5-20 long slender hairs (absent in most species of flesh fly) on propleura - a deepset plate on the antero-lateral corner of the thorax adjacent to the lower part of the spiracle. [4] The larvae are characterised by having twelve segments, each with short spines at its posterior margin.
The posterior spiracles (on the anal segment) are usually on two cylindrical lobes. Each spiracle has three slit or oval openings and three or five groups of interspiracular hairs that are branched in some species. [citation needed] The larvae are microbial grazers found in abundance in many microenvironments with decomposing organic material.
Spiracle of a bluespotted ribbontail ray, Taeniura lymma. Spiracles (/ ˈ s p ɪr ə k əl, ˈ s p aɪ-/ [1] [2]) are openings on the surface of some animals, which usually lead to respiratory systems. Spiracle of a shark (bighead spurdog, Squalus bucephalus) The spiracle is a small hole behind each eye that opens to the mouth in some fish.
A sclerotised region on the lateral part of an insect segment, bearing the spiracle, and separating and connecting the tergite and the sternite (compare: pulmonarium). pollinophagy feeding on pollen. Porrect mandibles of antlion larva. porrect of organs extended horizontally anterior to the head.