Many also have tubular mouths for sucking and can transmit diseases, e.g., malaria, sleeping sickness, filariasis, yellow fever. A house fly does not break the skin, but will land on food, vomit up part of its last meal and can transmit diseases as well, e.g., typhoid. Aquatic nymphs, four membranous wings with crossveins, very short antennae, large compound eyes for hunting. Thickened forewings with veins that cover hindwings, with chewing mouthparts. Anteriors of front wings leathery with posteriors membranous, hind wings fully membranous, piercing and sucking mouthpieces.
Millipedes live under rocks, etc.
Centipedes with one pair of legs per visible segment.