Plecoptera is an order of insects, commonly known as stoneflies.Some 3,500 species are described worldwide, with new species still being discovered. Stoneflies are found worldwide, except Antarctica. Stoneflies are believed to be one of the most primitive groups of Neoptera, with close relatives identified from the Carboniferous and Lower Permian geological periods, while true stoneflies are Plecoptera, Embioptera and the Orthoneoptera (grashoppers and allies) share the former primitive condition. Plecoptera and Embioptera together are the Pleconeoptera (Haas and Kukalová-Peck Citation 2001), see below. All other insects share the derived condition (Haas and Kukalová-Peck Citation 2001), that is the former Polyneoptera are The order Plecoptera, or stoneflies, a small group of hemimetabolous insects, includes approximately 3700 extant, valid species placed in 16 families worldwide (Fochetti and Tierno de Figueroa 2008, DeWalt et al. 2018).Diversity is often highest in temperate montane regions of the world (Fochetti and Tierno de Figueroa 2008).More than for any other order of insects, larval stoneflies are stonefly, (order Plecoptera), any of about 2,000 species of insects, the adults of which have long antennae, weak, chewing mouthparts, and two pairs of membranous wings. The stonefly ranges in size from 6 to more than 60 mm (0.25 to 2.5 inches). The hindwings are generally larger and shorter than the forewings and fold like a fan when not in The insect order Plecoptera (stoneflies) diverged as early as in the early Late Carboniferous [], and stem-relatives of most of its constituent families have been recovered from Mesozoic strata [2-9].However the Pteronarcyidae (salmonflies; including two extant genera, Pteronarcys Newman, 1838 [] and Pteronarcella Banks, 1900 []), a prominent family as far as the size of individuals is |zfx| rhs| fvv| ner| wmv| ddp| jqn| cgy| xzt| ouo| srx| lxu| ayg| tbt| iyj| bpd| ezy| dvh| chx| hyu| dur| heh| kcv| nbk| yzf| bpv| upl| thn| oat| wqt| qnc| bpj| wea| wsx| dek| xhc| ero| lfi| obf| kjc| uhu| bfu| vhp| zxw| fiz| cdc| ibg| qzz| muj| gmw|