Manota truuverki, Kurina & Hippa, 2021

Kurina, Olavi & Hippa, Heikki, 2021, Additions to the knowledge of Manota Williston (Diptera: Mycetophilidae) from the Neotropical region, with description of four new species, Zootaxa 4938 (1), pp. 85-100 : 92-94

Manota truuverki sp. n.

Figs 5 A–C

urn:lsid:zoobank.org:act:4EF6E9AA-9430-4AFD-9218-0189761EB261

Male. Colour. Head light brown, face somewhat paler. Scape, pedicel and first segment of flagellum yellowish, rest of flagellar segments brown. Clypeus, mouthparts pale yellowish. Thorax light brown, with scutum laterally yellowish. Legs yellowish, apical third of hind femur brownish, tarsi appear brown due to dense trichia. Wing with light brownish tinge due to microtrichia; halter yellowish, knob brown. Abdomen brown, sternites and lateral tergites lighter. All vestiture pale, yellowish or brownish, thicker setae and trichia appear darker than finer ones. Head. Antennal flagellomere 4 ca. 1.8 times as long as wide. Palpomere 3 of maxillary palpus with apicomesial thumb-like extension, with 3 apically curved sensilla; palpomere 4 with parasegment; palpomere 5 ca. 1.2–1.3 times longer than palpomere 4. Ten strong postocular setae. Thorax. Anepisternum with 32–37 setae; anterior basalare non-setose, laterotergite with 16–17 setae, preepisternum 2 non-setose; metepisternum with 2–6 setae. Legs. Mid and hind tibial organs absent. Wing. R 1 meeting C within basal half of costal margin; sclerotized part of M 2 not extending to level of tip of R 1; wing length 1.5–1.7 mm. Hypopygium ( Figs 5 A–C). Anterior half of sternite 9 fused with gonocoxa, posterior half free from gonocoxa, extending over the middle between bases of gonocoxa and gonostylus, posterior margin rounded with wide shallow apical concavity, anterior margin with V-shaped incision, posterior half with setae similar to those on ventral side of gonocoxa. Ventral medial margin of gonocoxa straight. Parastylar lobe small, extending over ventral medial margin of gonocoxa, with 2 apical setae. No paraapodemal lobe identifiable. Dorsal medial margin of gonocoxa simple, slightly bulging medially, at posterior third with a membranous lobe on more ventral level bearing 4–5 short, medially directed, slender setae and 1–2 somewhat stronger setae at more posterior position. Two juxtagonostylar setae present: dorsal one a flattened, spathulate megaseta with a subapical whiplike dorsal branch; the ventral one a simple wavy megaseta, longer than dorsal one, both megasetae arising from a common basal body about as long as the ventral megaseta. Gonostylus subovate, about 1.4 times as long as wide, non-setose except one strong and one weaker setae at medial margin and 3 short, stout and curved setae at apical margin. Aedeagus elongated subtriangle, without lateral shoulders, apex curved ventrad. Hypoproct large, extending posteriorly near to apex of gonostylus, number of ventral setae (sternite 10) ca. 20 on each half. Cerci medially separated, setae scattered over the surface.

Female. Unknown.

Etymology. The species is named in recognition of Andro Truuverk, an entomologist at Zoological Museum, University of Tartu, who initiated a year-long Malaise trapping program in the Kaw Mountains of French Guiana. The collecting yielded more than a hundred specimens of Manota included in the current paper.

Comments. In the key to Neotropical Manota by Kurina et al. (2018), the new species runs to couplet 11 because of setose laterotergite, non-setose anterior basalare and gonocoxa with posterolateral lobe about half length of more basal part of gonocoxa. Twelve species are included in this couplet but M. truuverki sp. n. differs in details of the hypopygium from all of them. With respect to the gonostylus and the general outline of dorsal medial margin of the gonocoxa, the new species is more similar to M. digitata Hippa, Kurina & Sääksjärvi, 2017 , but has a small parastylar lobe (large and parallel with ventral medial margin of gonocoxa in M. digitata ) and sternite 9 is posteriorly rounded with a shallow apical excavation (with a wide and deep posterior concavity in M. digitata ). Based on the shape of the gonostylus, shape of the sternite 9 and general outline of the dorsal medial margin of the gonocoxa, M. truuverki is similar also to M. anfracta Hippa & Kurina, 2013 (couplet 26 in the key by Kurina et al. 2018). However, M. truuverki has the posterolateral lobe of gonocoxa straight, about half length of the more anterior part of the gonocoxa (short and bent medially in M. anfracta ; cf. Hippa & Kurina (2013): figs 3 A–F; Hippa et al. (2017): figs 20 A–C), parastylar lobe small and simple (large and complex in M. anfracta ) and the ventral juxtagonostylar megaseta simple (both juxtagonostylar megasetae modified, with flattened and expanded basal parts in M. anfracta ).

Types. Holotype. Male , FRENCH GUIANA: Régina, Kaw Mts, Amazon Nature Lodge, 4.55856N 52.20612W, alt 290m, Malaise trap, 27.vii–10.viii.2014, leg. K. Alliku (on slide, IZBE) . Paratype. 1 male, same as holotype except 26.i–12.ii.2015, leg. A. Truuverk (on slide, IZBE) .

Figures

FIGURE 5. Manota truuverki sp. n. (holotype). A. Hypopygium, dorsal view. B. Hypopygium, ventral view. C. Hypoproct and aedeagus, ventral view. Scale 0.1 mm.