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The forelegs are reduced in the Nymphalidae Diagram of an insect leg. The thorax, which develops from segments 2, 3, and 4 of the larva, consists of three invisibly divided segments, namely prothorax, metathorax, and mesothorax. [11] The organs of insect locomotion – the legs and wings – are borne on the thorax.
Most of the larvae of Diptera live in an aquatic environment, in decaying organic substrates, and in other organisms (fungi, animals, plants). Their morphological structure therefore has a substantial simplification. The Diptera larva is apodous (with no legs), but sometimes, especially in aquatic larvae, has appendages similar to pseudopodia.
Diagram of a typical insect leg. The typical and usual segments of the insect leg are divided into the coxa, one trochanter, the femur, the tibia, the tarsus, and the pretarsus. The coxa in its more symmetrical form, has the shape of a short cylinder or truncate cone, though commonly it is ovate and may be almost spherical.
(F, G, and H: true legs) Lepidoptera: Papilio machaon caterpillar with 4 pairs of medial prolegs and a pair of anal prolegs Hymenoptera: Craesus septentrionalis caterpillars with 7 pairs of prolegs A proleg is a small, fleshy, stub structure found on the ventral surface of the abdomen of most larval forms of insects of the order Lepidoptera ...
Dolichovespula maculata is a species of wasp in the genus Dolichovespula and a member of the eusocial, cosmopolitan family Vespidae.It is taxonomically an aerial yellowjacket but is known by many colloquial names, primarily bald-faced hornet, but also including bald-faced aerial yellowjacket, bald-faced wasp, bald hornet, white-faced hornet, blackjacket, white-tailed hornet, spruce wasp, and ...
The larvae of mites and Ricinulei have only six legs; a fourth pair usually appears when they moult into nymphs. However, mites are variable: as well as eight, there are adult mites with six or, like in Eriophyoidea, even four legs. [7] [8] While the adult males in some members of Podapolipidae have six legs, the adult females have only a ...
Symphytan larvae that are wood borers or stem borers have no abdominal legs and the thoracic legs are smaller than those of non-borers. With rare exceptions, larvae of the suborder Apocrita have no legs and are maggotlike in form, and are adapted to life in a protected environment. This may be the body of a host organism, or a cell in a nest ...
Pupa glossy black-brown, sometimes hibernating twice. [2] The moth flies at night in June and July [a] and sometimes comes to light, although it is not generally strongly attracted. The young larvae are gregarious, becoming solitary later. The older larva is very striking, black with white and yellow lines. It feeds on many trees and shrubs ...