Towards reliable identification of male Dicerura: descriptions of three new and seven poorly known species in the Palearctic region (Diptera: Cecidomyiidae, Porricondylinae) Author Jaschhof, Mathias Author Spungis, Voldemars text Zootaxa 2018 4422 1 85 103 journal article 29151 10.11646/zootaxa.4422.1.5 ea160d3a-63f4-4a24-b4b1-042ef1508b5c 1175-5326 1455505 D167DDAD-17D0-4F35-9873-85B4BC7E8FEB Dicerura barbata Mamaev, 1966 Figs 9–12 Dicerura barbata was previously known only from the original material, referred to by Mamaev (1966) as consisting of four males (including the holotype ) and a female, from two separate localities in Ukraine . The morphological description in the same publication takes no account of the female; rather it is stated there that females of this species were unknown. We identified a male from northern Sweden as conspecific with D. barbata based on the genitalic drawing provided with the original description ( Mamaev 1966: fig. 6.3 ). Diagnosis. The gonocoxites of D. barbata are quite unlike that of all other Dicerura in having an extremely large emargination ventrally, which leaves just a short, asetose intercoxal bridge; the emargination is partly filled with an ovate, microtrichose lobe ( Fig. 11 , ↓1). The large, subtriangular gonocoxal processes are densely microtrichose medially; the dorsal apodemes are conspicuously long and thin ( Fig. 11 , ↓2). The elongate gonostylus has a small side lobe subapicomedially, which is covered apically and dorsally with dense, large microtrichia, a few setulae, and 1–2 short bristles ( Fig. 10 , ↓3). The apical fork of the ejaculatory apodeme is perfectly V-shaped ( Fig. 12). The elongate, parallel-sided tegmen, which is membranous for the most part, has a broadly rounded apex and a single pair of small, sclerotized processes subapicolaterally ( Fig. 12 , ↓4). The apex of the ninth tergite is bilobed and densely covered with short, thick microtrichia, especially along the edge and on the inside ( Fig. 9 ). Remarks. The only specimen of D. barbata examined here is remarkable for the presence of a distinct, complete M1+2, a vein usually regarded as vestigial in Dicerura . Mamaev (1966) did not mention this vein in his description of D. barbata . Material examined. Sweden : male, Lule Lappmark, Jokkmokk, Kaltisbäcken NR , herb-rich old-growth taiga near stream, 10 July 2016 , aspirator, M. Jaschhof (specimen no. CEC 1385 in NHRS).