Manota subforceps, Hippa, Heikki & Ševċík, Jan, 2010

Hippa, Heikki & Ševċík, Jan, 2010, Notes on Oriental and Australasian Manotinae (Diptera, Mycetophilidae), with the description of thirteen new species, Zootaxa 2333, pp. 1-25 : 17-19

Manota subforceps sp. n.

Figs 1 B, 13 A, B.

Male. Colour. Head brown. Antenna unicolorous brown. Mouthparts pale yellowish. Thorax unicolorous brown. Legs pale yellowish, trochanter and femur 2 and 3 brown, tibiae and tarsi appearing rather dark depending on the vestiture. Wing pale yellowish-brown with a darker brownish patch at costal margin ( Fig. 1 B); haltere pale brown, with brown knob. Abdominal tergites brown, sternites brown, almost as dark as tergites. All setosity yellowish or brownish, thicker setae seeming darker than finer setae and trichia, thick setae on parts of legs appearing nearly black. Head. Antennal flagellomere 4 visible in ventral view in the single specimen and not illustrated (probably ca. 1.5 times longer than broad). Palpomere 3 of maxillary palpus without apicomesial extension, without apically expanded curved sensilla; palpomere 4 without parasegment; palpomere 5 1.7 times longer than palpomere 4. Twelve strong postocular setae. Thorax. Anepisternum non-setose, anterior basalare non-setose, preepisternum 2 non-setose, laterotergite non-setose, episternum 3 non-setose. Wing. Fig. 1 B: sclerotized part of M2 unusually long, basally extending nearly to level of r-s; wing length 2.8 mm. Hypopygium, Figs 13 A, B. Sternite 9 about one third of ventral length of gonocoxa, lateral margin sharply demarcated, slightly convex, posterior margin notched, anterior margin with deep acute incision, setae similar to ventral setae of gonocoxa. Ventral mesial margin of gonocoxa simple, with shoulder-like curvature laterad at parastylar lobe. Parastylar lobe almost as long as gonocoxa and directed posteriad, with a row of short setae apicomesially. Paraapodemal lobe indistinct. Dorsal mesial margin of gonocoxa simple, at middle united with a broad setose posteriorly directed lobe. No apical apophysis dorsally at apical margin of gonocoxa. Two juxtagonostylar setae present: a curved megaseta and a thinner seta arising from an apically flattened, unusually long basal body, which is ca. four times as long as megaseta. Gonostylus long, longer than gonocoxa, broadest at middle, ventrally rather short-setose, dorsally almost non-setose, setae on mesial margin forming a fringe, setae becoming stronger towards apex. Aedeagus subtriangular, without distinct lateral shoulders, apex curved ventrad. Hypoproct rather small, posteriorly not reaching middle of gonostylus, medially not distinctly divided into two halves, with ca. 20 ventral setae. Cerci medially united except for apical parts.

Female unknown.

Discussion. M. subforceps is very similar to M. forceps , but can be distinguished as follows: the parastylar lobe is apically broad and flat, simple and with a row of small setae, while in M. forceps the apex is narrow and has a narrow falcate process and a group of strong setae; the gonostylus is broadest at the middle, but in M. forceps the sub-basal part is broadest. M. forceps and M. subforceps differ from all other Manota for which the wing is described by having the sclerotized part of M2 basally extending nearly to the level of r-s instead of being very much shorter. M. subforceps and M. forceps belong to the few species of Manota in which all the mesopleural sclerites are non-setose. The other similar species are M. radula sp. n. (Borneo) and M.

unifurcata Lundström (Europe) . M. subforceps and M. forceps are distinguished from both of these by the dark mark on the wing, from M. radula by the simple, not deeply lobed gonostylus, and from M. unifurcata by lacking the apicomesial thumb-like extension with curved sensilla on the maxillary palpomere 3, and by the very long parastylar lobe and basal body of the juxtagonostylar setae, both of which are quite inconspicuous in M. unifurcata . For other unusual characters of M. forceps and M. subforceps , see under M. radula and M. sinepollex above.

Etymology. The name is Latin and formed from the specific epithet of M. forceps by the prefix sub-, somewhat, referring to the similarity of the two species.

Types. Holotype. Male, INDONESIA, Sumatra, Sumatera Utara, Semangat Gunung, 1300 m, Malaise in jungle, 16.iii.1992, H. Hippa (in SMNH).

Figures

FIGURE 1. Wing, dorsal view (A, B, C, E) and basal part of wing, ventral view (D). A. Manota bruneiensis sp. n. (paratype) B. M. subforceps sp. n. (holotype). C. M. sinepollex sp. n. (holotype). D, E. Eumanota vilkamaai sp. n. (holotype). Scale 1.0 mm.

FIGURE 13. Manota subforceps sp. n. (holotype). A. Hypopygium, dorsal view. B. Hypopygium, ventral view. Scale 0.10 mm. ps l = parastylar lobe, jx s = juxtagonostylar setae.