Manota katusabei, Hippa, Heikki & Kurina, Olavi, 2012

Hippa, Heikki & Kurina, Olavi, 2012, New species and new records of Afrotropical Manota Williston (Diptera, Mycetophilidae), with a key to the species, Zootaxa 3455, pp. 1-48 : 21

Manota katusabei sp.n.

Figs 12 A–H

Male. Colour. Head brown. Antenna brown. Mouthparts paler yellowish. Thorax brown, preepisternum 2 ventrally paler. Legs pale yellowish, trochanters 2 and 3 brown, basal fifth of femur 2 and 3 slightly infuscated, apical third of femur 3 infuscated. Wing brownish; haltere pale brown with dark brown knob. Abdomen brown, sternites paler than tergites. All setosity pale, yellowish or brownish, the thicker setae seeming darker than the finer setae and trichia. Head. Antennal flagellomere 4, Figs. 12 A, E. Palpomere 3 of maxillary palpus with apicomesial thumblike extension, with 3–4 apically expanded curved sensilla; palpomere 4 with parasegment, palpomere 5 ca. 1.4 times longer than palpomere 4. Number of strong postocular setae 9–11. Thorax. Anepisternum setose, with 6–7 setae in a longitudinal stripe on the anterior half; anterior basalare setose, with 9–11 seta; preepisternum 2 setose, with 2 ( Uganda)–6 setae ( Ghana, Uganda); laterotergite setose, with 12 setae ( Ghana)) or 15–21 setae ( Uganda); episternum 3 setose, with 8–12 setae. Legs. Mid and hind tibial organs absent. Wing. R1meeting C well on the basal half of the costal margin; the sclerotized part of M2 basally extending to the level of the tip of R1, wing length 1.3 mm ( Ghana) 1.7–1.8 mm ( Uganda). Hypopygium, Figs 12 B–D and F–H: Sternite 9 slightly shorter than the ventral length of gonocoxa, laterally fused with gonocoxa, posterior margin slightly convex, anterior margin with slight medial incision, the setae similar to ventral setae of gonocoxa. Parastylar lobe subtriangular, with 2 apical setae. Paraapodemal lobe not identifiable. Dorsal mesial margin of gonocoxa largely membranous/ submembranous, posteriorly with a membranous semicircular lobe, the mesial and lateral margins form a short curved setose lobe without any prominent setae. At the dorsal mesial margin of gonocoxa, on more ventral level, a plate-like lobe bearing a row of 8 setae of which 7 are blunt megasetae, the second one from the anterior end an unmodified seta. One juxtagonostylar seta present, which is a flattened bowed megaseta arising from a basal body, which is as long as the megaseta. Gonostylus slightly less than half of the ventral length of gonocoxa, apically slightly bilobed or with distinct apicomesial and apicolateral corners, the former with a strong seta, otherwise the setae weak and largely lacking on the dorsal side. Aedeagus extremely elongate, subtriangular, without lateral shoulders and the apex curved ventrad. Hypoproct large, posteriorly extending to level of the apex of gonostylus, the ventral setae scattered, ca. 30 on each half. Cerci mesially separate, the setae distributed from apex near to base, the longest setae about twice of the subapical width of cercus.

Female unknown.

Discussion. The specimen from Ghana is remarkably smaller, 1.3 mm contra 1.7–1.8 mm, but in other respects it seems identical with the Ugandan material.

The sternite 9 which is laterally fused with the gonocoxa, large hypoproct, lack of leaf- or scale-like megasetae posteriorly at the dorsal mesial margin of gonocoxa, and a long row of megasetae on the lobe mesially at the dorsal mesial margin of gonocoxa make M. katusabei similar to M. macrodon Hippa (from Madagascar), M. serrata Søli and M. sespinaea Søli (both from Tanzania). It is distinguished from M. macrodon e.g. by: 1) lacking a mesiad directed knife-like part on its parastylar lobe and 2) having the megasetae at the dorsal mesial margin of the gonocoxa only half of the size in that species. With Tanzanian species, M. katusabei shares the general similarity of megasetae on the dorsal mesial margin of gonocoxa. However, 1) M. sespinaea has only 6 of them, while both other species have 8–10 (see also Søli 1993: Fig. 5 , C, D) and 2) in M. katusabei the megasetae enlarge towards the anterior end in contrast to the posterior end in M. serrata , including the posteriormost conspicuously larger than the others. According to Søli (1993: Fig. 5 , D) the parastylar lobe of M. sespinaea is long and conical, while it is subtriangular in M. katusabei . In addition, M. katusabei seems to differ from both Tanzanian species by a lower number of setae on the anepisternum: M. katusabei 6–7, M. serrata 19–43, M. sespinaea 17–23. In M. katusabei these setae form a stripe on the anterior part of the sclerite. We assume that in M. serrata and M. sespinaea the setae are widely distributed because Søli (1993) did not mention any unusual pattern.

Etymology. The species is named after Mr Swaibu Katusabe who assisted in the collecting of the material in the Kibale National Park.

Types. Holotype. Male, UGANDA, Kibale NP, Kanyawara Biol. St., 0 0o 33’54,2’’ N, 0 30o 21’31,3’’ E, 1513m, Malaise trap (No 4), 24.vi–2.v.2010, leg. O. Kurina & Co. (on slide, in IZBE). Paratypes. 1 male, same data as holotype except 6–13.vi.2010 (on slide, in IZBE).

Other material. 1 male, GHANA, Central Region, Kakum nr. Entwi Hrom, Malaise trap 8–15.xi.1999, leg. T. Andersson (on slide, in MZLU).

Figures

FIGURE 5. Manota bracteata sp. n. (A paratype, B, C and D holotype). A. Antennal flagellomere 4, lateral view. B. Hypopygium, ventral view. C. Hypopygium, dorsal view. D. Gonostylus, dorsal view. Scale 0.1 mm.

FIGURE 12. Manota katusabei sp. n. (A paratype, B – D holotype, E – H from Ghana). A, E. Antennal flagellomere 4, lateral view. B, F. Hypopygium, ventral view. C, G. Hypopygium, dorsal view. D, H. Gonostylus, dorsal view. Scale 0.1 mm.