Manota macrothrix, Sevcik, Jan, Hippa, Heikki & Wahab, Rodzay Abdul, 2014

Sevcik, Jan, Hippa, Heikki & Wahab, Rodzay Abdul, 2014, Diversity of Manota Williston (Diptera, Mycetophilidae) in Ulu Temburong National Park, Brunei, ZooKeys 428, pp. 57-77 : 63-64

Taxon classification Animalia Diptera Mycetophilidae

Manota macrothrix sp. n. Fig. 5

Description.

Male. Colour. Head brown, face and clypeus paler brown. Antenna brown. Mouthparts yellowish. Thorax pale brown, preepisternum 2 ventrally pale yellowish. Legs yellowish, femur 3 with a very slight indication of infuscation. Wing brownish, halter pale brown with blackish knob. Abdomen pale brown, sternites paler than tergites. All setosity pale, yellowish or brownish. Head. Antennal flagellomere 4, Fig. 5A. Palpomere 3 of maxillary palpus with apico-mesial thumb-like extension, with 5 apically expanded and curved sensilla; palpomere 4 with parasegment; palpomere 5 is 1.3 times as long as palpomere 4. Number of strong postocular setae 10-11. Thorax. Anepisternum setose, with 34-55 setae; anterior basalare non-setose; preepisternum 2 setose, with 15 setae, laterotergite non-setose; episternum 3 setose, with ca. 9 setae. Legs. Mid and hind tibial organs absent. Wing. R1 meeting C well on the basal half of the costal margin; the sclerotized part of M2 extending near to the level of the tip of R1; wing length 1.4-1.6 (1.5-1.7) mm. Hypopygium.Fig. 5 B–E: Sternite 9 about one half of ventral length of gonocoxa, with sharply delimited convex sides, posterior margin not well seen in the holotype because the dorsal membranous area extruded, anterior margin deeply incised, the setae similar to adjacent ventral setae of gonocoxa. Ventral mesial margin of gonocoxa simple, sigmoid. Parastylar lobe oblique, subtriangular, with 3 setae antero-mesially (at apex). Paraapodemal lobe well exposed in ventral view. The dorsal mesial margin of gonocoxa simple, convex, posteriorly with a group of tightly placed setae. Gonocoxa posterolaterally with an apically setose apophysis/lobe. Two juxtagonostylar setae, both long apically curved megasetae, both arising from a common basal body, about one third of the length of megasetae. Gonostylus elongate and slightly curved, with moderately long setosity ventrally and dorsally, without megasetae or other setae deviating from the general setosity. Aedeagus short subtriangular, with distinct lateral shoulders, the apex curved ventrad. Hypoproct posteriorly extending to level of middle of gonostylus, the ventral part divided into two elongate oval lobes (sternite 10) covered by ca 30 very long setae on each half, postero-dorsally with a few both fine and strong setae. Cerci mesially separate.

Female unknown.

Discussion.

Manota macrothrix belongs to a large group of species, common in the Oriental region, all of which have a well-developed apico-mesial thumb-like extension on palpomere 3, a setose anepisternum and preepisternum 2, a non-setose anterior basalare and laterotergite, a short vein R1, laterally free tergite 9, an oblique sickle-shaped or subtriangular parastylar lobe, well developed paraapodemal lobe, an apically setose apophysis at the apico-dorsal margin of the gonocoxa, two juxtagonostylar megasetae arising from a common basal body and a rather unmodified elongate gonostylus. Within this group Manota macrothrix is similar to Manota dolichothrix Hippa & Ševčík, 2010 from Sabah by having extremely long setae ventrally on the hypoproct (on sternite 10) but differs in having these setae widely scattered on each half of the hypoproct, while they are in a single row on each half in Manota dolichothrix . Further, in Manota macrothrix the subapical setae of gonostylus are shorter, less than twice longer than the medial width of gonostylus, while in Manota dolichothrix they are almost three times as long as the width of gonostylus. There are many minor differences between the two species (Fig. 5 B–E, Hippa and Ševčík 2010: Fig. 6 B–C).

Etymology.

The name is a Latinized Greek noun, macrothrix, long-hair, referring to the very long setae on the hypoproct.

Types.

Holotype. Male, Brunei, Ulu Temburong N. P., Kuala Belalong Field Studies Centre, 4°32'50"N, 115°09'28"E, 7-17.i.2014, primary lowland rainforest, Malaise trap 2, J. Ševčík & D. Kaspřák leg. (in UBDC).

Paratype. 1 male, Brunei, Ulu Temburong, 14.ii - 9.iii 1982, Malaise trap, M. C. Day leg. (in BMNH).