Manota kaindiensis, 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 : 271-273

Manota kaindiensis sp. n.

Figs 8 A–F

Male. Colour. Head brown, face somewhat paler. Antenna including scape and pedicel brown. Clypeus and mouthparts pale yellowish. Thorax yellow, medial part of scutum and scutellum darker. Legs yellowish, hind coxa basally slightly infuscated, basal fourths of mid and hind femora infuscated. Wing with apical third infuscated; 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. 8 A. Palpal segment 3 of maxillary palpus with apicomedial thumb-like extension, with three apically flattened and curved sensilla; palpal segment 4 subapically constricted, without parasegment; palpal segment 5 ~1.8 times longer than palpal segment 4. Ten strong postocular setae. Thorax. Anepisternum with 29–32 setae; anterior basalare nonsetose; preepisternum with 11 setae; laterotergite with 14–16 setae; metepisternum with 12 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 not extending to the level of the tip of R1; wing length 2.3 mm. Hypopygium, Figs 8 B–F. Sternite 9 small, subtriangular, less than half the ventral length of gonocoxa, laterally free from gonocoxa, anteriorly deeply incised, posteriorly with deep v-shaped notch, the setae similar to the ventral setae of gonocoxa. Ventromedial margin of gonocoxa simple, almost straight; the ventral setosity of gonocoxa unmodified. Parastylar lobe represented by two long setae arising from the dorsal side of gonocoxa. Paraapodemal lobe indistinct. Dorsomedial margin of gonocoxa straight, with a small setose lobe at the middle and with a posterior setose lobe, which is laterally almost wholly fused with gonocoxa. Posterodorsal margin of gonocoxa simple. The dorsal setosity of gonocoxa unmodified except for a couple of stronger setae posteriorly. Gonostylus elongate, equilateral, three fourths of the ventral length of gonocoxite, all setae unmodified, basal three fourths of dorsal surface and apical part of ventral surface non-setose. One juxtagonostylar seta present as an apically expanded megaseta arising from a low socket only, the exact structure of the expanded apical part is not discernible in the slide mounts. Aedeagus elongate subtriangular, with slightly expressed lateral shoulders, the apex curved ventrad. Hypoproct posteriorly extending to the base of gonostylus, its ventral part (sternite 10) with ~40 scattered short setae on each half. Cerci medially separate, apically and laterally widely setose.

Female unknown.

Discussion. Following the key by Hippa (2007), this species runs to couplet 14 ( M. sicula ) because 1) both the anepisternum and laterotergite are setose, 2) sternite 9 is laterally separated from the gonocoxa, 3) the gonocoxa has a setose lobe apicomedially, 4) the gonostylus is without strongly deviating apical setae, 5) the parastylar lobe is small or indistinguishable, and 6) antennal flagellomere 4 is about twice as long as broad. The structure of male hypopygium is, however, different from that of M. sicula but resembles M. sigma and to a lesser extent also M. explicans . In all three species the parastylar lobe is almost totally unsclerotized, and not clearly visible, but lying on the dorsal side of the ventral part of the gonocoxa and is best detected by its setae. Manota kaindiensis is distinguished in having: 1) a straight gonostylus (slightly sigmoid in M. sigma ), 2) the lobe posteriorly at the dorsomedial margin of the gonocoxa paralleling the margin (transverse in M. sigma ), 3) the ventral surface of its sternite 10 evenly setose (with wide non-setose area in M. sigma ), and 4) an apically infuscated wing (hyaline in M. sigma ). Also the length/width ratio of antennal flagellomere 4 is higher (cf. Figs 8 A and 13 A). Both of these species are distinguished from M. explicans in having: 1) two parastylar setae (three in M. explicans ), and 2) sternite 9 laterally free from the gonocoxa (fused with gonocoxa in M. explicans ). In other Oceanian species with an indistinct and fused parastylar lobe, it is situated at the ventromedial or posterior margin of the gonocoxa (e.g. M. perissochaeta , M. serawei and M. cordata ). The type of parastylar lobe of these species is common also among Neotropical Manota .

Etymology. The species is named after Mt. Kaindi on which the type locality is situated.

Types. Holotype. Male, PAPUA NEW GUINEA, NE, Morobe District, Mt. Kaindi, N. Peak, 2350 m, 1– 14.ix.1966, G. A. Samuelson Collector (in BPBM).

Paratypes. 1 male, PAPUA NEW GUINEA, NE, Mt. Kaindi, 2350 m, Malaise trap, 19.vii.1977, J. L. Gressitt Collector (BPBM); 3 males, PAPUA NEW GUINEA, NE, Koroba, 40 km W of Tari, 1650 m, 18.ix.1963, R. Straatman, Light Trap (2 in IZBE, 1 in BPBM).

Figures

FIGURE 8. Manota kaindiensis sp. n. (A paratype, B – F holotype). A. Antennal flagellomere 4, lateral view. B. Hypopygium, dorsal view. C. Hypopygium, ventral view. D. Tergite 9, cerci and aedeagus, dorsal view. E. Hypoproct and aedeagus, ventral view. F. Gonostylus, dorsal view. Scale 0.1 mm.