Manota flammula, Hippa, Heikki, 2011

Hippa, Heikki, 2011, New species and new records of Manota Williston (Diptera, Mycetophilidae) from Thailand, with a key to the Oriental and Palaearctic species, Zootaxa 2763, pp. 39-60 : 43-44

Manota flammula sp. n.

Figs. 3 A, B, C

Male. Colour. Head pale brown, frons, vertex and dorsal part of occiput dark brown, ventral part of vertex darker than face. Mouthparts pale yellowish. Antenna brown, scapus and pedicellus slightly paler than flagellum, two apical flagellomeres slightly paler than the others. Thorax pale brown, scutum, scutellum and mediotergite medially darker, preepisternum 2 paler yellowish ventrally. Legs pale yellowish, apices of coxae 2 and 3 and their trochanters infuscated, colour of more distal part of leg 3 not known. Wing unicolorous greyish-brown; haltere yellowishbrown with dark brown knob. Abdomen brown, sternites 1–4 paler yellowish-brown. All setosity pale, the thicker setae seeming darker than the finer setae and trichia. Head. Antennal flagellomere 4, Fig. 3 A. Palpomere 3 of maxillary palpus with apicomesial thumb-like extension, with 4 apically expanded curved sensilla; palpomere 4 with parasegment, palpomere 5 ca. 1.6 times longer than palpomere 4. Number of strong postocular setae 9. Thorax. Anepisternum setose, with 30 setae, anterior basalare setose, with 10 setae, preepisternum 2 nonsetose, laterotergite setose, with 13 setae, episternum 3 setose, with ca. 10 setae. Legs. Middle tibial organ lacking. Wing. R1 meeting C well on the basal half of the costal margin; the sclerotized part of M2 basally extending to the level of the tip of R1, wing length 1.6 mm. Hypopygium, Figs. 3 B and C: Sternite 9 laterally fused with gonocoxa, extending posteriorly as far as the ventral posterior margin of gonocoxa, anterior margin with a shallow incision, the setae similar to ventral setae of gonocoxa. Parastylar lobe subquadrangular, with 2–3 setae at posterior margin. Paraapodemal lobe not identifiable. Dorsal mesial margin of gonocoxa sinuous, subapically with a stout, blunt megaseta. At the dorsal mesial margin of gonocoxa, on more ventral level, a plate-like lobe with ca. 15 blunt megasetae at its posterior margin. One juxtagonostylar seta present: a flattened flame-shaped megaseta arising from a stout basal body which is ca 1.5 times longer than the megaseta. Gonostylus rather small, bipartite, with a broad basal part and a narrow apicolateral lobe-like part, with a few rather short unmodified setae ventrally, largely nonsetose dorsally except for the many setae apically on the apicolateral lobe, the mesial margin with three prominent strong setae. Aedeagus elongate subtriangular, without distinct lateral shoulders, the apex curved ventrad. Hypoproct large, posteriorly extending nearly as far as the apex of gonostylus, with ca. 25 scattered setae on each half. Cerci mesially separate.

Female unknown.

Discussion. Manota flammula is similar to M. obtecta known also from Thailand, and can be mixed only with it. M. flammula can be distinguished by the following characters: 1) the parastylar lobe is broad, subquadrangular, not narrow and sickle-shaped and it bears 2–3 setae instead of ca. 8, 2) the megaseta subapically at the dorsal mesial margin of gonocoxa is cylindrical and evenly broad, not flat and expanding towards the apex, 3) the juxtagonostylar seta is a flat flame-shaped megaseta, not a strong usual seta, and it is arising from a basal body which is longer than the seta instead of one which is less than half the length of the seta and 4) the apicolateral appendix to the gonostylus is larger, about half the length of the broad basal part, instead of being only about one fourth of it.

Etymology. The name is Latin, flammula , a little flame, referring to the flame-shaped juxtagonostylar megaseta.

Types. Holotype. Male, THAILAND, Lampang, Chae Son NP, entrance the Mea Khun-Mae Mon, 1849.989'N 9928.445'E, 452 m, Malaise trap 1–8.viii.2007, Bunruen Kwunnui & Acharaporn Sukpeng leg., T2848 (in QSBG).

Figures

FIGURE 3. Manota flammula sp. n. (holotype). A. Antennal flagellomere 4, lateral view. B. Hypopygium, dorsal view. C. Hypopygium, ventral view. Scale 0.10 mm. aed = aedeagal apodeme, ce = cercus, gs l = apicolateral lobe of gonostylus, gx = gonocoxa, gx a = gonocoxal apodeme, gx d = dorsal mesial margin of gonocoxa, gx l = lobe at dorsal mesial margin of gonocoxa, gx v = ventral mesial margin of gonocoxa, hpr = hypoproct, jx s = juxtagonostylar megaseta, jx b = basal body of juxtagonostylar setae, ms = megaseta at dorsal mesial margin of gonocoxa, pl l = plate-like lobe, ps l = parastylar lobe, st 9 = sternite 9, tg 9 = tergite 9.