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Family Mesoveliidae - Water Treaders

Mesovilia sp? - Mesovelia mulsanti Water Treader IMG_0172 - Mesovelia Unknown - Mesovelia Unknown - Mesovelia Green Water Insect - Mesovelia Mesovelia ? - Mesovelia Mesovelia Beetle sp? Glides on the water's surface. - Mesovelia
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Hemiptera (True Bugs, Cicadas, Hoppers, Aphids and Allies)
Suborder Heteroptera (True Bugs)
Infraorder Gerromorpha (Semiaquatic Bugs)
Family Mesoveliidae (Water Treaders)
Other Common Names
Pond Threaders, Pondweed Bugs
Explanation of Names
Mesoveliidae Douglas & Scott 1867
4 spp. in a single genus in our area, ~50 spp. in 12 genera worldwide(1)(2)
1.2‒4.2 mm(1), our spp. 1.8‒4 mm(3)
winged forms with ocelli, wingless forms without ocelli(3)
Small, slender, usually greenish/yellowish. Only anterior basal part of forewing thickened, clavus membraneous, membrane veinless. Antennae slender, 4-segmented. Beak slender, 3-segmented, 3rd segment long. Tarsi 3-segmented, tarsomere 1 minute.(4)
on aquatic vegetation or running on water surface; fairly common around ponds(4); almost always present on Lemna mats and on lily pads(3), also in forest leaf litter, damp moss, seeping rock faces(1); 1 sp. occurs in mangroves(2)
small organisms found on water surface(4)
fossils known from late Jurassic(5)
Works Cited
1.Biodiversity of the Heteroptera
Henry T.J. 2009. In: Foottit R.G., Adler P.H., eds. Insect biodiversity: Science and society. Oxford: Wiley-Blackwell: 223−263.
2.Two new records of aquatic Hemiptera (Belostomatidae, Mesoveliidae) from southern Florida, with keys to the genera Belostoma Lat
Pintar, M.R. 2023. Aquatic Insects.
3.Identification manual for the aquatic and semi-aquatic Heteroptera of Florida
Epler J.H. 2006. FL Dept. Env. Prot., Tallahassee, FL. 186 pp.
4.A Field Guide to Insects
Richard E. White, Donald J. Borror, Roger Tory Peterson. 1998. Houghton Mifflin Co.
5.Evolution of the Insects
David Grimaldi and Michael S. Engel. 2005.