Manota cornuta, Hippa & Søli & Kurina, 2019

Hippa, Heikki, Søli, Geir & Kurina, Olavi, 2019, New data on the genus Manota Williston (Diptera: Mycetophilidae) from Africa, with an updated key to the species, Zootaxa 4652 (3), pp. 401-441 : 409

Manota cornuta sp. n.

Figs 2 A–C

Male. Colour. Head brown, face somewhat paler. Antenna light brown, including scape and pedicel. Clypeus and mouthparts pale yellowish. Thorax light brown. Legs yellowish to light brown, apical fifth of hind femur infuscated. Wing with light brownish tinge because of microtrichia; halter entirely brownish. Abdomen brown, tergites laterally and sternites lighter. All vestiture pale, yellowish or brownish, thicker setae and trichia seeming darker than finer ones. Head. Antennal flagellomere 4 ca. as long as wide. Palpomere 3 of maxillary palpus with apicomesial thumb-like extension, with 4 apically curved sensilla; palpomere 4 with parasegment; palpomere 5 1.4–1.5 times longer than palpomere 4. 10-11 strong postocular setae. Thorax. Anepisternum with 52 setae; anterior basalare and laterotergite non-setose; preepisternum 2 with 12–15 setae; metepisternum with 14–19 setae. Legs. Mid and hind tibial organs absent. Wing. R 1 meeting C within basal half of costal margin; sclerotized part of M 2 almost extending to level of tip of R 1; wing length 1.9 mm. Hypopygium ( Figs 2 A–C). Sternite 9 laterally free from gonocoxa, posterior margin membranous, slightly concave, extending over middle between bases of gonocoxa and gonostylus, anterior margin with deep and wide V-shaped incision medially, anterior 1/3 and posterior membranous part nonsetose, setae on posterior 2/3 slightly shorter than those on ventral side of gonocoxa, postero-laterally with fingerlike sclerotizations on dorsal surface of both sides, which bear one short and curved apical seta deviating from other setosity on sternite 9. Ventral medial margin simple, membranous. Parastylar lobe plate-like, subrectangular, medially constricted, apically with 3 short and curved setae. Dorsal medial margin of gonocoxa simple, posteriorly forming well delimited setose bill-like small lobe with dorsal posterior margin of gonocoxa. Three juxtagonostylar setae present, all megaseta-like, the dorsal one apically slightly curved, with an apically separate basal body, the two dorsal ones more prominent, apically hook-like curved, with a common basal body which is more than half of the length of megasetae. Gonostylus dorso-ventrally wide, lateroapically, between dorsal and ventral portions concave; dorsal portion narrow, tapering with basal heel-like lobe, subbasal setose hump and 2–3 more prominent setae dorsoapically; ventral portion wide, with two blunt, medially directed megasetae apically and two more prominent setae subapically. Aedeagus elongate subtriangular, without lateral shoulders, apex curved ventrad. Hypoproct posteriorly not extending to the basal part of gonostylus, ventral setae (sternite 10) forming a medial longitudinal stripe of ca. 8 setae on each half. Cerci (scarcely discernible on slides) medially separated, largely membranous, with unusually narrow apical parts, bearing 4–5 setae.

Female. Unknown.

Etymology. The name is Latin, cornuta, ‘horned’, referring to the horn-like setigerous lobe at posterolateral corners of sternite 9.

Comments. Manota cornuta sp. n. is similar to M. afra and the two key out in the same couplet in the species key. Both species have three juxtagonostylar megasetae that is unique among the Afrotropical species. The unique finger-like posterolateral lobes on sternite 9 and the unusually narrow apical part of cercus, distinguishes M. cornuta from all known Manota .

Types. Holotype. Male, GHANA, Volta region, Wli Falls, Afegame (St. 10A), 7– 10.03.1993, NUFU-ZMBN, leg. J.S. Amakye & J. Kjaerandsen (slide mounted, NHMO) . Paratypes. Male, GHANA, Volta region, Wli Falls , Afegame (St. 8A), 11– 20.11.1993, NUFU-ZMBN, leg. J. Kjaerandsen (slide mounted, NHMO).

Figures

FIGURE 2. Manota cornuta sp. n. (A paratype, B, C holotype). A. Hypopygium, dorsal view. B. Hypopygium, ventral view. C. Hypoproct, ventral view. Scale 0.1 mm.