Manota bifida, Hippa, Heikki & Papp, László, 2007

Hippa, Heikki & Papp, László, 2007, The genus Manota Williston (Diptera: Mycetophilidae) in Thailand, with the description of seven new species, Zootaxa 1528, pp. 41-60 : 47-49

Manota bifida sp. n.

( Figs 4 A, B)

Body yellow, scutellum and abdomen darker (brown), body length ca. 2.0 mm, wing length 1.55 mm.

Male. Head. Flagellomere 4 as long as broad with 0.03 mm trichia. Postocular setae black, rather short. Thorax. Anepisternum setose. Anterior basalare non-setose. Setae of preepisternum 2 not observed. Laterotergite setose. Setae of episternum 3 not observed. Legs all yellow. Wing. Wing membrane brownish, dorsally with few setae at posterior margin, veins light brown. Sc distally of h very short, non-setose. Ratio of visible sections of veins M1 and M2 32/72. A1 indicated by a few indistinct setae.

Hypopygium ( Figs 4 A, B). Tergite 9 about half the ventral length of gonocoxa, lateral margin anteriorly fused with gonocoxa, posterolateral and apical margins forming a contiguous broad arch, anterior margin with a rather shallow incision, the setae similar to ventral setae of gonocoxa. The ventral mesial margin of gonocoxa subapically strongly angled, the apical margin at middle with a prominent lobe. Parastylar lobe well exposed, conical, directed posteriad, with one strong apical seta. Paraapodemal lobe indistinct, not visible in ventral view. Dorsal mesial margin of gonocoxa simple, apically with a slightly bilobate setose lobe partly lying on a more ventral level, the latter covering a small ventrally setose plate-like lobe on a still more ventral level. One juxtagonostylar seta present: a stout curved megaseta arising from a basal body, which is nearly as long as the megaseta. Gonostylus simple, elongate-oval, laterally (and ventrally) with rather long setae, mesially with shorter setae, subapically at ventral margin with two megasetae. Tegmen unusual, apically bifid or with a long apical branch on both sides of the medial tube, with weak lateral shoulders. Hypoproct short and broad, posteriorly extending to half the length of gonostylus, with ca. 15 marginal or sub-marginal setae on each half. Cerci medially separate.

Female unknown.

Discussion. In its hypopygium, Manota bifida differs from all other described Manota by the apically bifid tegmen. Otherwise it somewhat resembles M. roslii Hippa , and to a lesser extent also M. pollex Hippa and M. yongi Hippa , but differs e.g. by having the posterior margin of tergite 9 convex, not notched, by having distinct parastylar lobes, by having the basal body of the juxtagonostylar megaseta nearly as long as the megaseta, not less than half of that length, and by having the hypoproct unusually broad, with a semicircular posterior margin and with all the setae pushed to the marginal area.

Types. Holotype. Male, Thailand: Khao Pu-Khao Ya N. P., along a forest brook below the (Pak Yam) waterfall, No. 42, Nov 21, 2004, leg. L. Papp & M. Földvári (gen. prep. Bud 35).

Figures

FIGURE 4. Manota bifida sp. n. (holotype): hypopygium in dorsal (A) and in ventral (B) view. Scale 0.1 mm.