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 stipator Mamaev, 1972 Figs 25–27 Dicerura stipator , another species found only in the Far East of Russia, is known from two males and one female, all mounted by Mamaev on one and the same microscope slide. Mamaev (1972) did not indicate which of the males is to be regarded as the holotype , so both are referred to here as syntypes . The genitalia of both specimens are partly distorted and collapsed, which is why the gonostylar structure cannot be described here. From what is left of the gonostyli, we assume that their outline is similar to that in D. penttineni ( Fig. 3 ). Mamaev’s (1972) original description of D. stipator , which does not refer to characters of the female and lacks illustrations, is too unspecific for the purpose of identification. Diagnosis. Dicerura stipator is a typical member of the iridis group. It is the only species of Dicerura in which the two tines of the apical fork of the ejaculatory apodeme are serrate medially ( Fig. 27 , ↓1). Of the gonocoxites, the ventral emargination is wide and shallow; the two pairs of processes bordering the emargination are approximately same size; the ventroposterior edge is broadly pigmented ( Fig. 25 , ↓2); and the dorsal portions are strongly bulging medially. The tegmen of D. stipator , which is generally similar to that of D. penttineni (cf. Fig. 3 ), has a pair of small, sclerotized barbs and, behind the barbs, short appendages ( Fig. 27 , ↓3); its narrowly rounded apex is reinforced by a roundish, sclerotized knob, which resembles the condition found in D. unidentata . The ninth tergite of D. stipator is again similar to that of D. penttineni (cf. Fig. 4 ), but the narrow, apical portion, which is darkly pigmented and provided with dense microtrichia on the inside, is larger ( Fig. 26 ). Material examined. Two syntype males, mounted on one and the same slide (no. P-Di0139 in ZMUM), with the data as specified in the original description ( Mamaev 1972 ).