Winnertzia globifera, Mamaev, 1963

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 : 19

Winnertzia globifera group

Diagnosis. The principal character of this group is that the gonostylar claw is situated at some distance from the gonostylar apex, not terminally. Furthermore, the dorsoposterior portions of the gonocoxae are markedly protruding, and the tarsal claws lack the strong basal tooth present in most other Winnertzia . In many of the species classified in this group the tegminal flaps have reinforced, microtrichose edges, and the aedeagal apodeme is thickened above the solid basal portion.

Phylogeny. The globifera group as diagnosed here is likely to be monophyletic, although the subapical position of the gonostylar claw, seen in isolation, is no reliable indicator of affiliation with this group. Similar gonostyli occur here and there in other Winnertzia , notably in the species complex around W. tridens . Also, we have seen unnamed Winnertzi a outside Europe in which tegmen and aedeagal apodeme resemble the corresponding structures found in the globifera group, although the gonostylar claw is situated terminally. Lobowinnertzia , proposed as a subgenus of Winnertzia by Mamaev (1963) and raised to generic rank by Fedotova & Sidorenko (2007), is identical with our globifera group. Nevertheless, we continue here to treat Winnertzia as a coherent entity pending a thorough understanding of the generic phylogeny ( Spungis 1992; Jaschhof & Jaschhof 2013; Gagné & Jaschhof 2017).

Species included. This group contains seven Palearctic species named in the past, of which two are discussed below to be species complexes (asterisks mark taxa known to occur in Sweden): * W. globifera Mamaev agg. (presumably three discrete species in Sweden, including Winnertzia aff. xylostei in Jaschhof & Jaschhof (2013)) , W. nota (Fedotova & Sidorenko) , W. parma (Fedotova & Sidorenko) , W. prolongata Mamaev , W. tamariciphila Mamaev , * W. tumida Panelius , and * W. xylostei Mamaev agg. (presumably three discrete species in Sweden). Three more species of the globifera group are described here from Sweden.