Manota hyboloma, 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 : 11-12

Manota hyboloma sp. n.

Figs 8 A–D

Male. Colour. All specimens appear strongly faded. Head pale brown, vertex darker brown. Antenna unicolorous pale brown. Mouthparts pale yellowish. Thorax unicolorous pale brown. Legs unicolorous pale yellowish. Wing unicolorous yellowish or brownish; haltere yellowish-brown with darker knob. Abdominal tergites pale brownish, tergites 4, 5 and 6 apparently darker than others, sternites paler yellowish, sternites 5 and 6 brownish, nearly as dark as respective tergites. All setosity yellowish or brownish, thicker setae apparently darker than finer setae and trichia. Head. Antennal flagellomere 4, Fig. 8 A. Palpomere 3 of maxillary palpus with apicomesial extension, with 4–5 apically expanded curved sensilla; palpomere 4 with parasegment; palpomere 5 1.4 times as long as palpomere 4. Ten to eleven strong postocular setae Thorax. Anepisternum setose, with 45–50 setae; anterior basalare non-setose; preepisternum 2 setose, with 15–32 setae; laterotergite non-setose; episternum 3 setose, with ca. 15–20 setae. Wing. Similar to Fig. 1 A; wing length 1.8–2.1 mm. Hypopygium, Figs 8 B, C, D. Sternite 9 about half the ventral length of gonocoxa, with sharply delimited straight lateral margin, posterior margin with deep indentation, anterior margin deeply incised, setae similar to adjacent ventral setae of gonocoxa. Ventral mesial margin of gonocoxa simple, sigmoid, with slight discontinuity at the middle. Parastylar lobe oblique, sickle-shaped, with a couple of setae anteriorly (at apex). Paraapodemal lobe exposed in ventral view, with submembranous appendix at mesial angle. Dorsal mesial margin of gonocoxa straight, subapically forming a large rounded lobe which is directed dorsad and has strong, short, sharp setae on ventral/mesial side, lobe in lateral view a prominent projection; long setose apicolateral apophysis, with indistinct additional lobe with strong sharp setae between it and lobe at mesial margin. Two juxtagonostylar setae, both long and more or less apically curved, one thin, the other thicker and megaseta-like, both arising from a common basal body, nearly half the length of setae. Gonostylus elongate sub-quadrangular with apicomesial appendix. Setae on ventral side moderately long, unevenly distributed, on dorsal side similar, apicomesially with a patch of setae, slightly thicker than other setosity, apicolaterally with 2 long and strong setae. Aedeagus elongate subtriangular, with rather strong lateral shoulders, apex straight, not angularly curved ventrad. Hypoproct posteriorly extending to level of apical third of gonostylus, ventrally with a mesial row of ca. 10 setae (sternite 10) on each half. Cerci mesially separate.

Female unknown.

Discussion. M. hyboloma is very similar to M. calcarata Hippa (Peninsular Malaysia), M. procera Hippa (Peninsular Malaysia, Sarawak, Thailand) and M. transversa Hippa ( Malaysia) , but differs by the large lobe postero-dorsally on the mesial margin of the gonocoxa. A homologous lobe is also seen in the other species, but it is rather inconspicuous and lacks the modified setosity. In addition, the apex of the aedeagus is straight in M. hyboloma , not curved ventrad as in the other three species. M. hyboloma also resembles M. stricta sp. n., but it differs by having the above-mentioned dorsal gonocoxal lobe and by having a normal aedeagus, not one with an unusually long, narrow and laterally winged apical part. See also under M. stricta .

Etymology. The name is derived from the Greek words hybos, hump, and loma, border, and refers to the large projecting lobe posteriorly at the dorsal mesial margin of the gonocoxa.

Types. Holotype. Male, BRUNEI, 13.iv.1991, without other data (in NHM).

Paratypes. 1 male with the same data as holotype (in NHM). 1 male, Malaysia, Sabah, Danum Valley, 14– 17.vii.1986, Malaise trap, E. Smith leg. (in NHM).

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 8. Manota hyboloma sp. n. (A paratype, B, C, D holotype). A. Antennal flagellomere 4, lateral view. B. Hypopygium, dorsal view. C. Hypopygium, ventral view. D. Gonostylus, dorsal view. Scale 0.10 mm.