A new species of Fissimentum Cranston & Nolte, 1996 from the state of São Paulo, Brazil (Diptera: Chironomidae, Chironominae)
Peer reviewed, Journal article
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Fissimentum mendesi n. sp. is described and figured on the basis of males collected in light traps in two localities in the state of São Paulo, Brazil. The new species is apparently closely related to F. desiccatum Cranston & Nolte, 1996 and F. guairense Pinho & Froehlich, 2011 by having a posterior projection of tergite IX, but can easily be distinguished from its congeners on the combination of a short, stout, evenly curved superior volsella and an antennal ratio of about 1.5. A revised key to the males of the genus is provided.