Peromyia paliformia Berest, 1994

Jaschhof, Mathias, 2016, Taxonomic revision of some Micromyinae (Diptera: Cecidomyiidae) described by Zoya L. Berest, Zootaxa 4097 (2), pp. 255-262 : 260

Peromyia paliformia Berest, 1994 —new junior synonym of Peromyia aeratipennis (Skuse, 1888)

Material studied: holotype male and paratype male, with the data specified in the original description ( Berest 1994).

My re-examination of the two male specimens representing P. paliformia revealed that they belong to P. aeratipennis , a species better known under the junior synonym, P. m u s c o r um (Kieffer, 1895) (see Jaschhof 2010). These specimens are in such poor shape that they should not have been used for taxonomic description. The tegmen is not simply “paliform” as described by Berest (1994: fig. 2.2), but has the subquadrate ventral shield characteristic of P. aeratipennis ( Jaschhof 1998: fig. 219c, as muscorum). The gonostyli, described by Berest (1994) to be “toothless”, seem to lack the small apical brush of large microtrichia typically present in P. aeratipennis ; however, this brush can be sparse and difficult to spot, especially when gonostyli are not in the right position. The microscope slides holding the type specimens of P. paliformia bear the notation “!muscorum”, possibly in B.M. Mamaev’s handwriting.