Manota alulata, 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 : 262-264

Manota alulata sp. n.

Figs 3 A–D

Male. Colour. Head brown, face somewhat paler. Antenna including scape and pedicel brown, two apical flagellomeres somewhat paler. Clypeus and mouthparts pale yellowish. Thorax light brown, medial part of scutum and scutellum darker. Legs yellowish, basal half of mid- and apical third of hind femora 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. 3 A. Palpal segment 3 of maxillary palpus with apicomedial thumb-like extension, with five apically flattened and curved sensilla; palpal segment 4 subapically constricted, without parasegment; palpal segment 5 more than 1.7 times longer than palpal segment 4. Eleven strong postocular setae. Thorax. Anepisternum with 38 setae; anterior basalare with 7 setae; preepisternum with 3 setae; laterotergite with 27 setae; metepisternum with 9 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 proximally extending to the level of the tip of R1; wing length 1.9 mm. Hypopygium, Figs. 3 B–D. Sternite 9 laterally fused with gonocoxa so that only the posterior most part of its lateral margin is visible, the anterior margin shallowly v-shaped incised, setae normal, unmodified, similar throughout on sternite 9 and gonocoxa. Parastylar lobe bipartite, the finger-like dorsomedial part with one or two apical setae. Paraapodemal lobe not observed. Dorsomedial margin of gonocoxa concave, largely membranous and indistinct. At the middle of the medial margin, on more ventral level with a sub-globular lobe bearing ~17 strong setae. Dorsal gonocoxal setae similar to the ventral ones. Gonostylus rather small, about half of the length of the gonocoxa, two-lobed, with subcylindrical apically tapering ventral lobe and a flat, wing-like, more dorsal lobe. The former with a long apical megaseta and two additional strong setae at the medial margin, the dorsal lobe with an apical fringe of fine setae; otherwise the gonostylar setae are not numerous and confined mostly to the ventral surface of the ventral lobe. Aedeagus elongate, subtriangular, with membranous basolateral lobe, the apex curved ventrad. Hypoproct posteriorly extending near the apex of gonostylus, the ventral part (sternite 10) with ~20 scattered setae on each half. Cerci medially separate, the setae separated into two groups: apical and dorsomedial setae. In Fig. 3 B, the seta visible between the cerci may belong to tergite 9 which is membranous except for the anterior margin.

Female unknown.

Discussion. Following the key by Hippa (2007), the species runs to couplet 8 because of 1) the setose anepisternum, anterior basalare and laterotergite, and 2) the sternite 9 very large, laterally fused with the conocoxa. Compared to the three known Oceanian species included in this couplet ( M. hirsuta , M. spathula and M. subspathula ), and the newly described M. lunata belonging also to the group, M. alulata has a bilobed gonostylus, with conical ventral, and flat, wing-like, dorsal lobes. In M. hirsuta and M. lunata , the gonostylus is simply suboval, in M. spathula and in M. subspathula it is elongate with an angle-like small lobe apically at its medial margin. Manota alulata differs also by having the setae on the lobe at the middle of the dorsal medial margin of gonocoxa all sharp, not all blunted or interspersed with blunted ones. See also specific discussion under M. lunata .

Etymology. The name is Latin [ alulata : with a little wing] referring to the wing-like lobe on the gonostylus.

Types. Holotype. Male, PAPUA NEW GUINEA, SE, Central Dist., 3.2 km S. Vanapa R., Brown Rd., 20– 22.v.1965, W. A. Steffan & Y. M. Huang Collectors (BPBM).

Figures

FIGURE 3. Manota alulata sp. n. (holotype). A. Antennal flagellomere 4, lateral view. B. Hypopygium, dorsal view. C. Hypopygium, ventral view. D. Hypoproct and aedeagus, ventral view. Scale 0.1 mm.