Manota pustulosa, Hippa, Heikki, Kurina, Olavi & Sääksjärvi, Ilari E., 2017

Hippa, Heikki, Kurina, Olavi & Sääksjärvi, Ilari E., 2017, The genus Manota Williston (Diptera: Mycetophilidae) in Peruvian Amazonia, with description of sixteen new species and notes on local species richness, Zootaxa 4236 (1), pp. 1-40 : 29-30

Manota pustulosa sp. n.

Figs 18 A–C

Male. Colour. Head brown, face somewhat paler. Antenna including scape and pedicel light brown, flagellum becoming slightly darker towards apex. Clypeus and mouthparts pale yellowish. Thorax light brown, medial part of scutum and scutellum somewhat darker. Legs yellowish, apical fourth of hind femur infuscated. Wing with slightly brownish tinge; haltere yellow with dark brown to blackish knob. Abdomen light brown. All setosity pale, yellowish or brownish, the thicker setae seeming darker than the finer ones. Head. Fourth antennal flagellomere 2 times as long as broad. Palpal segment 3 of maxillary palpus with apicomedial thumb-like extension, with four apically curved sensilla; palpomere 4 with parasegment; palpomere 5 about 1.6–2.0 times longer than palpomere 4. Nine strong postocular setae. Thorax. Anepisternum with 30–35 setae; anterior basalare with 5–7 setae, preepisternum 2 non-setose; laterotergite with 11–18 setae; metepisternum with 7–11 setae. Legs. Mid- and hind tibial organs absent. Wing. R1 meeting C within the basal half of the costal margin; the sclerotized part of M2 almost extending to the level of the tip of R1; wing length 1.5–1.7 mm. Hypopygium. Figs 18 A–C: Sternite 9 laterally fused with gonocoxa, the posterior margin slightly convex, partly submembranous, at the level of ca. three quarters of the distance between the base of gonocoxa and gonostylus, anterior margin with rather small medial incision, the setae similar to the adjacent ventral setae of gonocoxa; at the posterior margin, on the dorsal side, there is a membrane with a number of small pimples. The ventral medial margin of gonocoxa sigmoid. Posterolaterally the gonocoxa is not drawn into a conspicuous lobe. The ventral setosity of gonocoxa unmodified. Parastylar lobe roundish, with 5–7 setae. No paraapodemal lobe identifiable. Dorsal medial margin of gonocoxa simple, sinuous. The setae on the dorsal side of gonocoxa similar to those on the ventral side. Medioventrally from the middle of the dorsal medial margin of the gonocoxa, there is a plate-like lobe bearing posteriorly ca 10 narrow, blunted megasetae. One juxtagonostylar seta present as a strong but otherwise unmodified seta arising from an inconspicuous basal body that is scarcely more than a usual socket. Gonostylus ovate, on ventral side basally and laterally setose, a few long setae at medial margin on basal part, at the apex with curved setae deviating from other setosity, the dorsal side non-setose. Aedeagus elongate subtriangular, the apex curved ventrad. Hypoproct extending posteriorly to the apices of gonostyli, the number of ventral setae (sternite 10) ca. 20 on each half. Cerci medially separate.

Female. Unknown.

Discussion. Manota pustulosa belongs to a group of highly similar Neotropical species, viz. M. ibanezi , M. major , M. quantula and M. squamulata . All of them have: 1) the anterior basalare setose, and 2) a very large sternite 9 that is laterally completely fused with the gonocoxa, posteriorly broad, and extending almost to base of the gonostyli. It is distinguished from M. major and M. squamulata in having the setae on the apical part of the gonostylus shorter than the length of gonostylus (much longer in case of other species), and in having the setae/ megasetae on the lobe at the dorsal medial margin of the gonocoxa much stouter. Manota pustulosa also differs from M. squamulata in lacking the bilobed gonostylar apex, and from M. major in lacking a non-setose area posteromedially on sternite 9. Manota pustulosa is distinguished from M. ibanezi and M. quantula in having: 1) the apical setae of the gonostylus on about three quarters of the length of gonostylus instead of one half of that length, 2) the apicalmost seta characteristically curved on its basal half instead of being curved on the apical part or throughout the whole length, 3) the parastylar lobe as broad as long with setae on the ventral surface instead of being narrower with the setae at the medial margin, and 4) the juxtagonostylar seta well-developed instead of being absent ( M. quantula ) or unidentifiable ( M. ibanezi ).

Etymology. The name is Latin, pustulosa , ‘full of blisters or pimples’, referring to the small pimple-like structures on the membrane dorsally of sternite 9.

Types. Holotype. Male, PERU, Department of Loreto, Iquitos area , Mishana , 16.xii.1998 – 1.i.1999, Malaise trap D2, I. E. Sääksjärvi et al. leg. (on slide, UNSM). Paratypes. 1 male, same data as holotype except 1– 16.xi.1998, Malaise trap A2 (on slide, ZMUT) ; 1 male, same data as holotype except 1–16.xii.1998, Malaise trap B1 (on slide, ZMUT) ; 1 male, same data as holotype except 1–16.xii.1998, Malaise trap B2 (on slide, UNSM) ; 1 male, same data as holotype except 16.xii.1998 – 1.i.1999, Malaise trap B2 (on slide, IZBE); 1 male, Department of Loreto, Iquitos area, Allpahuayo , [6]– 20.ii.2000, Malaise trap G1(1), I. E. Sääksjärvi et al. leg. (on slide, ZMUT) ; 1 male, same data as previous except [6]– 20.ii.2000, Malaise trap H1(1) (on slide, UNSM) ; 1 male, same data as previous except [19.iv] – 3.v.2000, Malaise trap H1(5) (on slide, IZBE); 1 male, same data as previous except [1]– 15.x.2000, Malaise trap I1 (14) (on slide, ZMUT) .

Figures

FIGURE 18. Manota pustulosa sp. n. (holotype). A. Hypopygium, ventral view. B. Hypopygium, dorsal view. C. Hypoproct and aedeagus, ventral view. Scale 0.1 mm.