Manota dissidens, 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 : 15-16

Manota dissidens sp.n.

Figs 8 A–D

Male. Colour. Both studied specimens seem to be rather faded. Head pale brown, vertex and dorsal part of occiput dark brown. Antenna brown, scapus and pedicellus may be paler than the more distal parts. Mouthparts pale yellowish. Thorax pale brown. Legs pale yellowish, apical third of femur 3 probably infuscated but the colour is very difficult to observe in both slides. Wing pale brown; 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, Fig. 8 A. Palpomere 3 of maxillary palpus with apicomesial thumb-like extension, with 5 apically expanded curved sensilla; palpomere 4 with parasegment, palpomere 5 ca. 1.4 times longer than palpomere 4. Number of strong postocular setae 10–11. Thorax. Anepisternum setose, with 45–55 setae; anterior basalare non-setose; preepisternum 2 setose, with ca. 15 setae; laterotergite non-setose; episternum 3 setose, with ca. 18 setae. Legs. Mid and hind tibial organs absent. Wing. R1 meeting C well on the basal half of the costal margin; the sclerotized part of M extending to the level of the tip of R1, wing length 1.5–1.7 mm. Hypopygium, Figs 8 B–D: Sternite 9 half the length of gonocoxa, lateral margin sharply delimited, posterior margin transverse, anterior margin deeply incised, the setae similar to the ventral setae of gonocoxa. Ventral mesial margin of gonocoxa simple, slightly angled at the middle. Parastylar lobe subtriangular with 2 setae at anterior end, the setae arising from small basal bodies. Paraapodemal lobe distinct, exposed in ventral view. Dorsal mesial margin of gonocoxa simple, convex, posteriorly with an aggregation of setae deviating from the other gonocoxal setosity; posterior margin simple, forming an obtuse rounded angle with the mesial margin. On the ventral side of the latter there is a finger-like lobe bearing a strong apical seta. Two juxtagonostylar setae present, both rather unmodified blunted megasetae arising from a common basal body which is almost as long as the megasetae. Gonostylus about half the length of gonocoxa, roughly sickle-shaped with pointed apex and a heel-like basomesial angle and a lobe-like crest laterodorsally; there are two long and strong setae at the basomesial angle, one similar at the middle of the mesial side and two shorter ones at the apex; the setae on the ventral surface similar to those on the gonocoxa, on the dorsal side short and numerous mesially, laterally largely lacking except for the crest which has a couple of long setae distally. Aedeagus elongate subtriangular, with lateral shoulders, the apex curved ventrad. Hypoproct posteriorly extending to the basal part of gonostylus, the ventral setae forming a mesial longitudinal stripe of ca. 5 setae on each half. Cerci medially separate, simple, the setae short, the longest ones about twice the apical width of cercus.

Female unknown.

Discussion. In the key Manota dissidens follows M. redunca and M. toomasi but is distinguished from them and any other species particularly by the 2 + 1 long mesial setae and the dorsolateral lobe on its gonostylus ( Fig. 8 D).

Etymology. The name is Latin, dissidens , differing, referring to the unusual gonostylar chaetotaxy.

Types. Holotype. Male, GHANA, Central Region, Kakum nr. Entwi Hrom, Malaise trap 8–15.xi.1999, leg. T. Andersson (on slide, in MZLU). Paratypes. 1 male, same data as holotype (on slide, in MZLU).

Figures

FIGURE 8. Manota dissidens sp. n. (holotype). A. Antennal flagellomere 4, lateral view. B. Hypopygium, ventral view. C. Hypopygium, dorsal view. D. Gonostylus, dorsal view. Scale 0.1 mm.