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Identification key to species of genus Sciopemyia Males 1 Papilla on flagellomere III present (fig. 3F)................................................................ 2 - Papilla on flagellomere III absent........................................................................ 6 2(1) Gonocoxite without basal tuft of setae (fig. 4M);............................................................ 3 - Gonocoxite with basal tuft of setae (fig. 8M);.............................................................. 5 3(2) Flagellomere I ≤ 400 µm; aedeagal ducts ≥ 470 µm; epandrial lobe ≥ 176 µm............................ Sc. vattierae - Flagellomere I ≥ 405 µm; aedeagal ducts ≤ 440 µm; epandrial lobe ≤ 157 µm..................................... 4 4(3) Presence of one apical spine and upper external spine at the subapical level in the gonostyle (fig. 4M).......... Sc. sordellii - Presence of one apical spine and upper external spine at the apical level in the gonostyle (fig. 6M)..................................................................................................... Sciopemyia apicalis sp. n. 5(2) Gonocoxite ≤ 175 µm (fig. 8M), no arch-shape on its dorsal margin; aedeagal ducts ≤ 600 µm (fig. 8N)............................................................................................. Sciopemyia dantastorresi sp. n. - Gonocoxite ≥ 195 µm (fig. 12M), arch-shaped on its dorsal margin; aedeagal ducts ≥ 695 µm (fig. 12N).......................................................................................... Sciopemyia shimabukuroae sp. n. 6(1) Paramere bearing a small tubercle with setae at its apex in the median region of the dorsal margin; gonocoxite with basal tuft located on a highly sclerotized columnar tubercle..................................................... Sc. pennyi - Paramere without tubercle in the median region of the dorsal margin; gonocoxite with basal tuft located on a tubercle without columnar aspect...................................................................................... 7 7(6) Gonocoxite with tuft consisting of 15 or more setae.......................................................... 8 - Gonocoxite with tuft consisting of eight or fewer setae........................................................ 9 8(7) Paramere: ventral margin without pre-apical protuberance, the median region of the dorsal margin bearing some setae of curved apex and longer than those on the apical half.................................................... Sc. nematoducta - Paramere: ventral margin with pre-apical protuberance but with no differentiated setae in the median region of the dorsal margin..................................................................................... Sc. preclara 9(7) Gonostyle: lower external spine more basal than the internal one; dorsal margin of paramere has a set of curved setae separated from the setae on the apical half by a glabrous area.................................................. Sc. fluviatilis - Gonostyle: lower external spine more apical than the internal one; dorsal margin of paramere without the glabrous area separating the setae................................................................................... 10 10(9) Gonocoxite with basal tuft of fine setae; 5 th segment palpal greater than or equal sum of 3 rd + 4 th.............. Sc. microps - Gonocoxite with basal tuft of semifoliaceous setae; fifth segment palpal smaller than the sum of 3 rd + 4 th.... Sc. servulolimai Females 1 Papilla on flagellomere III present (fig. 1I)................................................................. 2 - Papilla on flagellomere III absent......................................................................... 4 2(1) Posterior teeth of the cibarium straight, facing the pharynx; anterior teeth arranged in a “ V ” shaped row (figs. 9B and 13B)................................................ Sciopemyia danstastorresi sp. n. / Sciopemyia shimabukuroae sp. n. - Posterior teeth slanted, facing the central region of cibarium; anterior teeth arranged in a transverse row (fig. 1B)......... 3 3(2) Spermathecae tubular, transversally striated with pedunculated terminal knob............................. Sc. vattierae - Spermathecae also transversally striated, though without the tubular aspect, clearly wider than the individual spermathecal ducts and with sessile terminal knob (fig. 2M)...................................................... Sc. sordellii 4(1) Individual spermathecal ducts clearly narrower at the junction with the spermatheca than at the junction with the common spermathecal duct and ca. 15 times longer than the spermatheca, this latter presents intermediate rings clearly wider than the rings at both its extremities.................................................................. Sc. nematoducta - Individual spermathecal ducts practically of the same width throughout their length and eight times or less longer than the spermatheca; this latter with the intermediate rings perceptibly of the same width as the apical rings.................... 5 5(4) Width of the individual spermathecal ducts at the junction with the spermatheca equivalent to a third of the width of the spermatheca, measured at its central part.......................................................... Sc. preclara - Width of individual spermathecal ducts at the junction of the spermatheca equivalent to half or more of the width of the spermatheca, measured at its central part................................................................... 6 6(5) Basal part of the individual spermathecal ducts (junction with the common duct) wider than the width of the spermatheca, at its central part................................................................................. Sc. fluviatilis - Width of the basal part of the individual spermathecal ducts (junction with the common duct) ca. half of the width of the spermaheca, measured at its central part................................................................... 7 7(6) Cibarium with the posterior teeth clearly lateralized, the distance between the internal ones twice that between these and the external ones. Fifth palpal segment longer than the sum of 3 rd + 4th. Individual spermathecal ducts ca. six times longer than the spermatheca................................................................................. Sc. microps - Cibarium with the posterior teeth not lateralized and the distance between the internal ones slightly greater than that between these latter and the external ones. Fifth palpal segment clearly shorter than the sum of 3 rd + 4 th. Individual spermathecal ducts at most 3.5 times longer than the spermatheca............................................................... 8 8(7) Individual spermathecal ducts ca. 3.5 times longer than the spermatheca and do not increase in caliber as it approaches the spermatheca. Absence of “callosity” in the individual spermathecal ducts............................. Sc. servulolimai - Individual spermathecal ducts ca. two times longer than the spermatheca and increases in caliber as they get closer to the spermatheca. Presence of “callosity” in the individual spermathecal ducts (fig. 16M).............. Sciopemyia birali sp. n. |
