Manota perpusilla, Hippa, 2006

Hippa, Heikki, 2006, Diversity of Manota Williston (Diptera: Mycetophilidae) in a Malaysian rainforest: description of twenty-seven new sympatric species, Zootaxa 1161 (1), pp. 1-49 : 44-45

Manota perpusilla sp. n.

( Figs. 16A, B )

A small­sized Manota .

Male. Head. Flagellomere 4, Fig. 16B . Maxillary palpus with palpomere 3 bearing 5 apically expanded curved sensilla; palpomere 4 with parasegment. Thorax. Anepisternum setose. Anterior basalare non­setose. Preepisternum 2 setose. Laterotergite non­setose. Episternum 3 setose. Wing. Length 1.3 mm. Wing membrane dorsally with few setae at posterior margin. Sc distally of h non­setose. Possible setae indicating A1 not seen with certainty. Hypopygium ( Fig. 16B ). Sternite 9 large, extending posteriorly to about halfway along ventral length of gonocoxa, laterally sharply delimited, posterior margin with V­shaped notch but not distinctly separated from more posterior membranous part, which has convex margin; setae similar to adjacent ventral setae of gonocoxa. Dorsomesial margin of gonocoxa simple, in position III with broad flat megaseta and long seta, both arising from very long basal body, dorsally of these with similar large body bearing seta (position IV seta), other apical structures simple. Gonostylus elongate­oval in ventral outline, with long flattened seta at basomesial angle. Parastylar lobe present, directed obliquely anteriad, with 3 or 4 apical setae. Tegmen short and broad, subtriangular with concave sides, with indistinct lateral shoulders. Setae on sternite 10 apparently in 2 short parallel rows on each half (not clearly visible in single specimen).

Female and preimaginal stages unknown.

Discussion

In M. perpusilla the gonostylus is of the rather common elongate­oval type without special modifications. Among these species, M. perpusilla is unique in having a conspicuous long, flattened seta at the basomesial angle. At least on slides, the seta is spiralled, screw­like. In the apical structures of the gonocoxa, M. perpusilla resembles M. duplex in having the position III and IV megasetae/setae on very long basal bodies, the bodies being nearly as long as the setae they bear. M. perpusilla differs from M. duplex , for example, by having one of the position III setae flattened. The two species differ greatly in their parastylar lobe: in M. perpusilla it is directed anteriad, in M. duplex posteriad.

Types

Holotype. Male, West Malaysia, Selangor, Ulu Gombak , University of Malaya Field Study Centre , 800 ft, Malaise in jungle, 24. Feb.–21. March 1997, H. Hippa, M. Jaschhof and B. Viklund.

Figures

FIGURE 16. Antennal flagellomere 4, lateral view (A, C); hypopygium, ventral (B, D) and dorsal view (E). A, B. Manota perpusilla sp. n. (holotype). C, D, E. Manota oligochaeta sp. n. (C, D holotype; E paratype). Scale for A and C 0.05 mm; for B, D, and E 0.10 mm.