Mesosmittia

Epler, John H., 2017, AN ANNOTATED PRELIMINARY LIST OF THE CHIRONOMIDAE (DIPTERA) OF ZURQUÍ, COSTA RICA Abstract Introduction, CHIRONOMUS Journal of Chironomidae Research 30 (30), pp. 4-18 : 7

Mesosmittia

- The widespread M. patrihortae (22 specimens) and one undescribed species (one specimen) were collected. The genus was most recently reviewed by Andersen & Mendes (2002). They noted that M. truncata Saether , described from a single male specimen from Panama ( Saether 1985), was separable from M. patrihortae only by the length of the costal extension (116 µm in M. truncata ; 8–62 µm in M. patrihortae ). Costal extensions in Zurquí material ran from 50 to 140 µm, indicating a wide range of lengths that would include the single measurement from the Panama specimen. I consider M. truncata to be a junior synonym of M. patrihortae .