Manota unisetata, Kurina, Olavi & Hippa, Heikki, 2015

Kurina, Olavi & Hippa, Heikki, 2015, A review of the South Pacific Manota Williston (Diptera, Mycetophilidae), with the description of thirteen new species, Zootaxa 4020 (2), pp. 257-288 : 282

Manota unisetata sp. n.

Figs 14 A–F

Male. Colour. Head brown, face somewhat paler. Antenna light brown, scape and pedicel, somewhat paler. Clypeus and mouthparts pale yellowish. Thorax light brown, medial part of scutum and scutellum darker. Legs yellow, apical fourth of hind femur dorsally infuscated. Wing hyaline; haltere yellow with brown knob. Abdomen light brown, medial 2/3 of tergites darker. All setosity pale, yellowish or brownish, the thicker setae seeming darker than the finer ones. Head. Antennal flagellomere 4 Fig. 14 A. Palpal segment 3 of maxillary palpus with apicomedial thumb-like extension, with six apically curved and strongly flattened sensilla; palpal segment 4 with parasegment; palpal segment 5 ~1.5 times longer than palpal segment 4. Ten strong postocular setae. Thorax. Anepisternum with 61 setae; anterior basalare non-setose; preepisternum medially with patch of 24 setae; laterotergite with 32 setae; metepisternum with 5 setae. Legs. Mid- and hind tibial organs absent. Wing. R1 meeting C within the basal half of the costal margin; the sclerotized part of M2 not extending to the level of the tip of R1; wing length 1.5 mm. Hypopygium, Figs. 14 B–F. Sternite 9 unusually narrow, elongate subquadrangular, almost as long as the ventral length of gonocoxa, lateral margin separated from gonocoxa, anterior margin deeply incised, posterior margin convex, the setae similar to the ventral setae of gonocoxa except three posteriormost setae larger than the others. Ventromedial margin of gonocoxa simple, the medial margin and posterior margin of gonocoxa form an almost acute rounded lobe-like angle. The ventral setae of gonocoxa normal, unmodified. Parastylar lobe transverse, the medial part expanded, with ~8 setae at medial margin. Paraapodemal lobe similar to Fig. 2 B but not clearly visible in ventral view. Dorsomedial margin of gonocoxa convex, with short setae on posterior half. At the posterior margin of the gonocoxa there is a large oblique lobe bearing ~3 apical setae, two subapical setae on the ventral side and two subapical setae at the medial margin. The dorsal setosity of gonocoxa normal, similar to the ventral one except one stronger seta posteriorly. Gonostylus about three fourths of the ventral length of gonocoxa, anterioposteriorly elongated with convex lateral and concave medial surface, subapically at the ventromedial margin with four megasetae or strong setae, the gonostylar apodeme unusually large, generally the setosity unmodified, confined on lateral/ventral parts; the microtrichia on the medial surface long and conspicuous. One juxtagonostylar seta present as a long apically curved megaseta arising from a basal body, which is about one fourth of the length of the megaseta. Aedeagus elongate subtriangular, with weak lateral shoulders, the apex curved ventrad. Hypoproct extending posteriorly to the base of gonostylus, the ventral part (sternite 10) with ~25 scattered setae. Cerci short, medially fused, apically separated by a low notch, with apical setae only.

Female unknown.

Discussion. Manota unisetata belongs to a large group of species as defined under M. acris . Within this group M. unisetata is unique in having four gonostylar megasetae (instead of one or two) and a medially expanded and setose parastylar lobe. It resembles M. nimia and M. pentacantha in having a single juxtagonostylar seta (which is an apically curved megaseta) and large gonostylar apodeme.

Etymology. The name is Latin, unisetata [having one seta] referring to possession of only one juxtagonostylar seta.

Types. Holotype. Male, SOLOMON ISLANDS, Santa Isabel I, Buala, Malaise trap, 25–40m, 13–16.x.1981, J.L. Gressitt leg. (BPBM).

Figures

FIGURE 2. Manota acris sp. n. (holotype). A. Hypopygium, dorsal view. B. Hypopygium, ventral view. C. Gonostylus, dorsal view. D. Tergite 9, apex of aedeagus and cerci, dorsal view. E. Hypoproct and aedeagus, ventral view. Scale 0.1 mm. aed = aedeagus, ce = cercus, dm = dorsomedial margin of gonocoxite, gs = gonostylus, gsl = apical lobe of gonostylus, gsm = gonostylar megaseta, gx = gonocoxite, gxa = gonocoxal apodeme, hpr = hypoproct, jxs = juxtagonostylar setae, mlg = lobe on dorsomedial margin of gonocoxite, pal = paraapodemal lobe, plg = lobe on posterior dorsal margin of gonocoxite, psl = parastylar lobe, st 9 = sternite 9, tg 9 = tergite 9.

FIGURE 14. Manota uniseta sp. n. (holotype). A. Antennal flagellomere 4, lateral view. B. Hypopygium, dorsal view. C. Hypopygium, ventral view. D. Gonostylus, dorsal view. E. Cerci and apex of aedeagus, dorsal view. F. Hypopygium and aedeagus, ventral view. Scale 0.1 mm.