Manota oblonga, Hippa, Heikki, 2008

Hippa, Heikki, 2008, New species and new records of Manota Williston (Diptera, Mycetophilidae) from the Oriental region, Zootaxa 1723, pp. 1-41 : 25-27

Manota oblonga sp. n.

( Figs 15 A, B, C)

Male. Colour. Head pale brown, frons, vertex, occiput and antennal flagellum darker brown, mouthparts pale yellowish. Thorax pale brown, posterior part of scutum, scutellum and part of mediotergite darker brown, pro- and mesothoracic pleura paler brown. Legs pale yellowish, femur 3 slightly infuscated on apical third. Wing unicolorous pale brown; haltere pale brown with dark brown knob. Abdomen brown. All the setosity pale, yellowish or brownish, the thicker setae seeming darker than the finer setae and trichia. Head. Antennal flagellomere 4, Fig. 15 A. Palpomere 3 of maxillary palpus with apicomesial extension, with 5 apically expanded curved sensilla; palpomere 4 with parasegment. Number of postocular setae 11. Thorax. Anepisternum setose, with 42 setae, anterior basalare non-setose, preepisternum 2 setose, with 18 setae, laterotergite non-setose, episternum 3 setose, with 6 setae. Wing. Length 2.0 mm. Hypopygium, Figs 15 B and C: Sternite 9 slightly less than one-half of the ventral length of gonocoxa, lateral margin sharply delimited, posterior margin indistinct, merging without any distinct boundary with the more posterior membranous structures in the single specimen, anterior margin deeply incised, the setae similar to the weakest ventral setae of gonocoxa. Ventral mesial margin of gonocoxa convex. Parastylar lobe rather small, with two setae mesially, each arising from an acute small lobe. Paraapodemal lobe distinct, not clearly seen in ventral view, drawn in Fig. 15 B. Dorsal mesial margin of gonocoxa simple, apically angularly curved laterad and connected to a setose apicolateral lobe. Two juxtagonostylar setae present, one a long sigmoid seta, the other a similar megaseta, both arising from a common basal body which is about half the length of the setae. Gonostylus very elongate-oval, the ventral setae unmodified, moderately long, the apical setae very long, the dorsal side non-setose except for a few rather weak setae on basal half, some of these setae arising from a small tuberculate lobe. Tegmen broadly subtriangular, with weak lateral shoulders. Hypoproct extending posteriorly only to the level of parastylar lobes, with some 10 setae on each half, those at the mesial margin unusually weak. Cerci medially separate.

Female unknown.

Discussion. Manota oblonga belongs to a rather common structural type among the Oriental Manota , i.e. among species which have a non-setose laterotergite, a more or less sickle-shaped oblique parastylar lobe, two long unequal juxtagonostylar setae arising from a long common basal body and a more or less well expressed apicolateral setose lobe on the gonocoxa. M. oblonga differs from all similar species by having an area of densely placed, very long setae dorsally on the gonocoxa. The very elongate-oval gonostylus is rather similar to that of M. pectinata Hippa but the apical setae are much longer and the whole apical half on the dorsal side of gonostylus is non-setose. The small setose lobe or tubercle on the dorsal side of gonostylus is not found in any other reminiscent species.

Types. Holotype. Male, THAILAND, Chiang Mai, Doi Inthanon NP, Vachiratharn Falls, 700m, 18o32.311’N 98o 36.048E, Malaise trap 13–21.ix.2006, Y. Areeluk leg., T248 (in QSBG).

Figures

FIGURE 15. Manota oblonga sp. n. (holotype). A. Antennal flagellomere 4, lateral view. B. Hypopygium, dorsal view. C. Hypopygium, ventral view. Scale 0.10 mm.