Paramanota furcillata, Hippa, Heikki, 2010

Hippa, Heikki, 2010, Review of the genus Paramanota Tuomikoski (Diptera, Mycetophilidae), with the description of new fossil and recent species, Zootaxa 2618, pp. 47-60 : 51-52

Paramanota furcillata sp. n.

Figs 1 D, F, 3 A–F

Male. Colour. Head yellowish brown, clypeus and vertex darker brown, antennal flagellomeres 2–14 brown; setae (almost all lost on face) and other vestiture dark. Thorax yellowish brown, scutum and scutellum brown, anterior part of anepisternum, laterotergite and the medial part of mediotergite slightly infuscated, in one paratype almost all of anepisternum, postero-ventral part of laterotergite and a wide median area of mediotergite almost as dark as scutellum; the thoracic setae dark. Legs yellowish brown, middle femur very slightly infuscated ventrally at apex, hind femur infuscated ventrally at apex or on whole apical half; the setae and other vestiture dark. Wing brownish; haltere yellowish brown with dark brown knob. Abdomen brown, hypopygium concolorous with the other parts; setae dark. Head. Antennal flagellomere 4, Fig. 3 A. Maxillary palp similar to fig. 7 a in Hippa et al. (2004), ultimate palpomere 1.8–2.0 times longer than the penultimate one. The strong postocular setae are broken off from all specimens and could not be counted. Thorax. Similar to Fig. 8a in Hippa et al. (2004). Legs. Apical part of tibia 1, Fig. 3 B. Wing, Figs 1 D, F: in one of the paratypes the basal parts of M1 and M2 and stM visible as clear shades. Wing length 2.0– 2.3 mm. Hypopygium, Figs 3 C–F: Gonocoxae ventrally separated by a membranous area, each side appearing as a very large lobe, posteriorly extending further than the gonostylus, the posterior part two-lobed with a narrow very long mesial lobe and broad short lateral lobe; the ventral surface evenly setose, the dorsal surface of the narrow mesial sub-lobe with 6–10 megasetae intermixed with a few usual setae. The gonocoxa part visible in dorsal view simple with the setae similar to those of the ventral side. Tergite 9 simple, the posterior margin convex, the posterolateral corner not prolonged; setae similar to gonocoxa. Cercus simple. Hypoproct as long as cercus, each half about one third of the width of cercus, each half with ca. 2 setae. Latero-ventrad from the hypoproct there is a setose sclerite which cannot be well observed in any of the slides and which is not drawn in Fig. 3 C. Gonostylus with a dorsal lobe, a ventral lobe and a large lobe between them; the dorsal lobe in dorsal view sub-quadrangular with the apicomesial angle prolonged and acute, with a comb-like row of submembranous pale lamellae along the posterior margin; the ventral lobe expanded at apex, with a mesial semicircular comb-like row of black sclerotized lamellae; the lobe between the dorsal and ventral lobes simple. Parameres free from aedeagus. Aedeagus elongate sub-quadrangular, posteriorly bifid or bilobed, slightly different in all specimens, aedeagal apodemes broad, sub-parallel, ejaculatory inverted T-shaped.

Female. Unknown.

Discussion. Paramanota furcillata is similar to P. awanensis and P. sumatrana . All three species differ from the other Paramanota by the ventral gonocoxal lobe which has a narrow prong-like sub-lobe in a mesial position, with the other species either lacking a prong-like lobe ( P. orientalis , P. paxillosa and P. schachti ) or having it in a lateral position ( P. bifalx and P. peninsulae ). P. furcillata differs from both P. awanensis and P. sumatrana by having the narrow mesial sub-lobe of the ventral gonocoxal lobe contiguous with the posterior margin of the gonocoxa, not arising from the dorsal surface of the gonocoxa so that the posterior margin of gonocoxa crosses the base of the mesial lobe. Further, the mesial sub-lobe is long, extending as far posteriorly as the gonostylus (in P. awanensis and P. sumatrana it is shorter, posteriorly extending only to the middle of the gonostylus), it is narrowing from base to the apex (nearly equilateral), it lacks megasetae at apex (several megasetae at the apex) and there are no megasetae at the posterior margin of the broader lateral sub-lobe of gonocoxa (in P. awanensis there is a long comb-like row of megasetae along the posterior margin, in M. sumatrana there are two widely separated short rows). P. furcillata is similar to M. awanensis (and differs from P. s u m a t r a n a) by having only one comb-like aggregation of black lamellae on the gonostylus (two aggregations) and by having the aedeagus longer than broad with the apodemes directed anteriod (broader than long with the apodemes directed laterad). P. furcillata differs by having two horn-like lateral lobes at aedeagal apex (two transverse lobes with their posteriorly pointing apices placed at the medial line).

Etymology. The name is Latin, furcillata , having a small fork, referring to the forked posterior part of the aedeagal complex.

Types. Holotype. Male. THAILAND, Petchaburi, Kaeng Krachan NP, Panernthung/km27/water pump, 1249.151'N 9922.483'E, 950m, Malaise trap 8–15.viii.2008, Sirichai & Chusak leg., T4350 (in QSBG).

Paratypes. 1 male, THAILAND, Surat Thani, Khao Sok NP, Headquarter, 854.896'N 9831.81'E, 115m, Malaise trap 14–21.x.2008, Pongphan leg., T3399 (in QSBG); 1 male with same data except 21–28.x.2008, T3400 (in QSBG); 1 male with same data except 20–27.i.2009, T3911 (in QSBG).

Figures

FIGURE 1. Wing, dorsal view (A and C – F) and ventral view (B). A, B. Paramanota grandaeva sp n. (holotype). C. P. orientalis Tuomikoski (Thailand). D, F. Paramanota furcillata sp. n. (D holotype, F paratype). E. P. bifalx sp. n. (holotype). Scale 1.0 mm.

FIGURE 3. Paramanota furcillata sp. n. (A, B, C, D and F holotype, E paratype). A. Antennal flagellomere 4, lateral view. B. Apical part of front tibia, prolateral view. C. Hypopygium, dorsal view. D. Hypopygium, ventral view. E. Aedeagus with associated structures, ventral view. F. Apical part of aedeagus, ventral view. Scale 0.10 mm. ad = aedeagus, ad a = aedeagal apodeme, b l = black lamellae, e a = ejaculatory apodeme, p l = pale lamellae, pm = paramere.