The largest is the dobsonfly Acanthacorydalis fruhstorferi, which can have a wingspan of up to , making it the largest aquatic insect in the world by this measurement. This species is native to China and Vietnam, and its body can be up to long. Net-winged insects (Neuroptera) These flying insects reach their largest size in Palparellus voeltzkowi, which can have a wingspan over . The largest lacewing is the Australian "blue eyes lacewing" (Nymphes myrmeleonides), which can measure up to in length and span across the wings. Some forms of this ancient order could grow extremely large during the Jurassic period and may have ranked among the largest insects ever. Found in the Early Cretaceous sedimentary rocks, Makarkinia adamsi had wings nearly in length. Lice (Phthiraptera) These parasitic insects are typically modest in size. The largest known species is the hog louse, Haematopinus suis, a sucking louse that lives on large livestock like pigs and cattle. It can range up to in length. Stoneflies (Plecoptera) The largest species of stonefly is Pteronarcys californica of western North America, a species favored by fishermen as lures. This species can attain a length of and a wingspan of over . Beetles (Coleoptera) Beetles constitute the most diverse order of organisms on earth, with about 400,000 species identified to this day. The most massive of them belong to the genera Goliathus, Megasoma, Chalcosoma, Titanus, Macrodontia, and Xixuthrus. The longest is the Hercules beetle, Dynastes hercules, with a maximum overall length of at least including the very long pronotal horn. The longest overall beetle is a species of longhorn beetle, Batocera wallacei, from New Guinea, which can attain a length of , about of which is comprised by the long antennae. Icebugs (Grylloblattodea) The largest icebug species, Grylloblatta campodeiformis, long, excluding ovipositors and cerci, and are fairly elongate, wingless insects. They are a uniform honey-yellow in colour and covered with very short hair. Unlike some other species of grylloblatid, G. campodeiformis has eyes which have roughly 70 facets. The head is fairly flat and rounded. The thorax is elongate and over a third of the body length. The abdomen is composed of 10 segments and over half the body length. The legs are long and narrow (cursorial) with stout coxae and long femora. Their antennae are long ~ and thread-like. In adults, the number of antennal subsegments is variable, ranging from 24 to 27. Ants,