Manota lunata, 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 : 273-274

Manota lunata sp. n.

Figs 9 A–D

Male. Colour. Head brown, face somewhat paler. Antenna including scape and pedicel brown, three apical flagellomeres paler. Clypeus and mouthparts pale yellowish. Thorax light brown, medial part of scutum and scutellum darker. Legs yellowish, apical third of hind femur infuscated. Wing hyaline; haltere yellow with brownish 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 tilted in the mount, similar to Fig 4 A. Palpal segment 3 of maxillary palpus with apicomedial thumb-like extension, with four apically curved and flattened sensilla; palpal segment 4 subapically constricted, without parasegment; palpal segment 5 ~1.9 times longer than palpal segment 4. Ten strong postocular setae. Thorax. Anepisternum with 42–46 setae; anterior basalare with 5 setae; preepisternum non-setose; laterotergite with 23 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 well extending to the level of the tip of R1; wing length 1.6 mm. Hypopygium, Figs. 9 A–D. Sternite 9 very large, semicircular, basal part laterally fused with gonocoxa, the anterior margin shallowly v-shaped incised, setae normal, unmodified, similar to those on gonocoxa. Parastylar lobe semicircular, flat, with two setae on the dorsal side. Paraapodemal lobe not observed. Dorsomedial margin of gonocoxa rather straight, membranous and indistinct except its anterior part. At the middle of the medial margin, on more ventral level with a plate-like lobe bearing 8 megasetae at its medial margin or on the ventral side: the 4 more anterior megasetae have a fine attenuating apex, the 4 more posterior ones are blunted. Dorsal gonocoxal setae similar to the ventral ones. Gonostylus is rather small, about one third of the length of the gonocoxa, simple, oval in outline with the unmodified setae, the dorsal side is non-setose. Aedeagus elongate subtriangular, the apex curved ventrad. Hypoproct posteriorly extending over the apex of gonostylus, the ventral part (sternite 10) with ~20 scattered setae on each half. Cerci medially separate, the setae placed at apex and at the medial margin.

Female unknown.

Discussion. In the key by Hippa (2007), M. lunata runs to couplet 8 and forms a group with M. hirsuta , M. spathula , M. subspathula and M. alulata (see also discussion under M. alulata ). Because of the simple round-oval gonostylus it resembles M. hirsuta but otherwise differs from all the mentioned species in having the margin of sternite 9 semicircular, so that the anterior part which is fused with the gonocoxa is rather short (in the other species almost whole lateral margin is fused with the gonocoxa).

Etymology. The name is Latin, lunata [crescent-shaped] referring to the shape of sternite 9.

Types. Holotype. Male, PAPUA NEW GUINEA, SE, Mamai Pltn., E of Port Glasgow, 150 M, light trap, 6.ii.1965, R. Straatman (BPBM).

Figures

FIGURE 4. Manota apentachaeta sp. n. (holotype). A. Antennal flagellomere 4, lateral view. B. Hypopygium, dorsal view. C. Hypopygium, ventral view. D. Gonostylus, dorsal view. E Hypoproct and aedeagus, ventral view. Scale 0.1 mm.

FIGURE 9. Manota lunata sp. n. (holotype). A. Hypopygium, dorsal view. B. Hypopygium, ventral view. C. Gonostylus, dorsal view. D. Hypoproct and aedeagus, ventral view. Scale 0.1 mm.