پاچه
Sign in to savethumb|upright|left|J: medial prolegsK: anal proleg(F, G, and H: true legs) thumb|upright=1|right|Lepidoptera: Papilio machaon caterpillar with four pairs of medial prolegs and a pair of anal prolegs thumb|upright=1|right|Hymenoptera: Craesus septentrionalis caterpillars with seven 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, though they can also be found on larvae of insects such as sawflies. In all the orders in which they appear, mainly Hymenoptera and Lepidoptera, prolegs of