Taxa on This Page
This order of paleopterous insects appeared during the Carboniferous but is best known known from the Permian of Russia and North America, and more recently, Europe. They resembled mosquitoes in size, suctoral mouthparts, and structure, the head being armed with a beak with piecing mouthparts, and they may have been blood-sucking forms like some Diptera.
The fore and hind wings were similar, with the R vein was bent back at the base in the fore-wings, less so in the hind wings. The main veins were closely aligned in the basal part of the wing. As with the neoptera, these insects were able to fold their wings back over the top of their abdomen, but the mechanism of folding is not clear. They constitute a separate neopterous development that is unrelated to the true Neoptera.
Phylogeny: Palaeodictyopteroida :: Palaeodictyoptera + (Megasecoptera + (Permothemistida + * ))
Comments: the paleozoic equivalent of the mosquito
Image: Head of Asthenohymen sp. (probably Wellington Formation of Oklahoma (Early Permian), showing biting mouthparts. Source of this image not recorded.
References: E. F. Reik, 1970, "Fossil History", in Insects of Australia, Melbourne University Press, p.175; Behrensmeyer et al 1992 Terrestrial Ecosystems Through Time - p.272
page MAK000107; checked ATW041127; revised MAK120517; Creative Commons Attribution;