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 iridis (Kaltenbach, 1873) Figs 22–24 Dicerura iridis , the most commonly found species of Dicerura in Europe, is redescribed here based on specimens from Latvia ( Spungis 1987 ). Diagnosis. This is the only Dicerura in which the apices of the ejaculatory apodeme are not smooth but appear frayed ( Fig. 24 , ↓1), a detail discernible only at high magnification. Other characters of diagnostic merit are as follows. The gonostylus, which is 2.5 times longer than wide, has a pointed, slightly bent apex and a long mediobasal lobe that is only slightly protruding and provided with dense, large microtrichia, a few setulae, and 5–6 short bristles ( Fig. 22 ). The gonocoxites have conspicuously few ventral setae; the ventral emargination is shallow and angular ( Fig. 22 , ↓2); the two pairs of processes bordering the emargination are same size, rounded, and provided with both microtrichia and fine setae; the dorsal portions are angular-shaped posteriorly; and the dorsal apodemes are conspicuously long and thin ( Fig. 22 , ↓3). The apical portion of the tegmen, whose outline is basically semicircular, is truncate to slightly concave on the crest and provided with 4–5 inconspicuous barbs on either side ( Fig. 24 , ↓4). The bilobed apex of the ninth tergite is covered with dense, thick microtrichia, especially along the posterior edge and on the inside ( Fig. 23 ). Material examined. Latvia : 3 males , Sigulda, 20 May 1978 , V. Spungis (in IBUL ).