Winnertzia rotundata Spungis

Jaschhof, Mathias & Jaschhof, Catrin, 2020, Reevaluation of species richness in Winnertzia (Diptera, Cecidomyiidae, Winnertziinae), with descriptions of 37 new species from Sweden, Peru and Australia, Zootaxa 4829 (1), pp. 1-72 : 10

Winnertzia rotundata Spungis

Diagnosis. A medium-sized, dark brown Winnertzia , whose male genitalic structures provide characters of diagnostic merit ( Jaschhof & Jaschhof 2013: fig. 31A). The parallel-sided, slightly bent gonostylus, which is three times as long as broad, bears numerous enlarged microtrichia apically, of which 7–8 stick out as particularly thick. Of the gonocoxal synsclerite, the ventral emargination is V-shaped, the convex ventroanterior edge has a small protuberance medially, and the medial bridges are protruding. The ninth tergite, whose length equals the gonopodal length, is markedly narrowed posteriorly, with the posterior edge emarginated medially and the emargination flanked by a pair of prominent, rounded lobes.

Distribution in Sweden. The Swedish occurrence of W. rotundata is based on a single series of four males collected in Östergötland ( Jaschhof & Jaschhof 2013).