is Pharnacia maxima, which measured with its legs extended. The spiny stick insect (Heteropteryx dilatata) of Malaysia does not reach the extreme lengths of its cousins, the body reaching up to long, but it is much bulkier. The largest Heteropteryx weighed about and was wide across the thickest part of the body. Cockroaches and termites (Blattodea) The largest cockroach in length and wingspan is the South and Central American Megaloblatta, at up to and , respectively. Another contender for longest is Blaberus giganteus, which is found in the same general region and may reach a length of up to , depending on source. The heaviest is the Australian giant burrowing cockroach (Macropanesthia rhinoceros), which can attain a length of and a weight of . Termites The largest of the termites is the African species Macrotermes bellicosus. The queen of this species can attain a length of and breadth of ; other adults, however, are about a third of this size. Praying mantises (Mantodea) Giant shield mantises of the genus Rhombodera (of which Rhombodera fratricida is the largest formally described by science) can reach lengths of nearly and are more robust than comparably sized mantises of other genera (Tenodera, Macromantis, Hierodula, Idolomantis, Sphodromantis, Deroplatys, Plistospilota and Titanodula). Some larger species have been known to capture and consume frogs, lizards, mice, small birds, small fish and even small snakes. The giant stick mantises Toxodera maxima and Ischnomantis gigas can reach lengths of over 17 cm, but are more gracile in build than other large mantises. Other species of (Toxodera and Ischnomantis) and other genera of stick mantises (Heterochaeta, Solygia and Tauromantis) can attain lengths almost as large (over 16cm). True bugs (Hemiptera) The largest species of this diverse, huge order are the giant water bugs Lethocerus grandis and L. maximus. These can surpass a length of , although they are more slender and less heavy than most other insects of this size (principally the huge beetles). The largest cicada is Megapomponia imperatoria, which has a head-body length of about and a wingspan of . The cicadas of the genus Tacua can also grow to comparably large sizes. The largest type of aphid is the giant oak aphid (Stomaphis quercus), which can reach an overall length of . The biggest species of leafhopper is Ledromorpha planirostris, which can reach a length of . Dobsonflies and relatives (Megaloptera) Megaloptera includes dobsonflies, alderflies and relatives.