Manota appendiculata, Hippa, Heikki & Kurina, Olavi, 2013

Hippa, Heikki & Kurina, Olavi, 2013, New species and new records of Manota Williston (Diptera: Mycetophilidae) in the Neotropical region, Zootaxa 3686 (2), pp. 101-139 : 107-109

Manota appendiculata sp. n.

Figs. 4 A–F

Male. Colour. Head brown, face somewhat paler. Antenna light brown. Clypeus yellow, mouthparts pale yellowish. Thorax pale brown, medial part of scutum and scutellum darker brown. Legs yellowish, extreme base of coxa 2 and 3, apical fifth of femur 2 ventrally, base and apical fourth of femur 3 slightly infuscated. Wing pale brown; haltere pale brown with darker brown knob. Abdomen pale brown, tergites medially darker brown, sternites paler than tergites. All setosity pale, yellowish or brownish, the thicker setae seeming darker than the finer ones. Head. Antennal flagellomere 4, Fig. 4 A. Palpomere 3 of maxillary palpus with apicomesial thumb-like extension, with 3 apically curved sensilla; palpomere 4 with parasegment; palpomere 5 ca. 1.2 times longer than palpomere 4. Number of strong postocular setae 10. Thorax. Anepisternum setose, with 41–43 setae; anterior basalare nonsetose; preepisternum 2 non-setose; laterotergite non-setose; episternum 3 setose, with 7–11 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 M2 not extending to the level of the tip of R1; wing length 1.5 mm. Hypopygium. Figs. 4 B–F: Sternite 9 laterally fused with gonocoxa, posterior margin narrow, concave and not extending to middle of gonocoxa, anterior margin deeply incised. The few setae on sternite 9 are similar to the adjacent ventral setae of gonocoxa. Ventral mesial margin of gonocoxa angled; ventral setae of gonocoxa unmodified. Posterolateral part of gonocoxa is drawn into a broad lobe having mesially a cup-shaped part, the apicolateral setae of the lobe are arising from small ridge-like formations. Parastylar lobe distinct, sclerotized, partly covered by the margin of gonocoxa, with one seta. No paraapodemal lobe observable. Dorsal mesial margin of gonocoxa simple, distinct only anteriorly and posteriorly. Number of juxtagonostylar setae two, the ventral one is a pointed megaseta arising from a basal body which is as long as the megaseta, the dorsal one – arising from a socket at the base of the basal body of the former – is apically flattened and expanded and has a short narrow twig-like branch. Anteriorly from the juxtagonostylar megasetae there is a plate-like lobe with an oblique row of seven simple megasetae including the anterior-most being much longer than the others. Posteriorly from the juxtagonostylar megasetae there is a transverse lobe with a couple of geniculate strong setae. Otherwise the dorsal setae of gonocoxa are similar to those on the ventral side. Inside the gonocoxa there is a conspicuous membranous part, being concave towards the medial line and bearing numerous finger-like papillae. Gonostylus small, with broader basal and narrower apical part, the former with a strong mesial seta, the latter with a sickle-shaped lateral appendix and a strong apical seta curved dorsad. Aedeagus subtriangular, without lateral shoulders, with concave sides, the apex curved ventrad. Hypoproct large, extending posteriorly to level of apex of gonostyli, the number of ventral setae (sternite 10) ca. 50 on each half. Cerci, except shortly separate and narrow apices, mesially fused.

Female. Unknown.

Discussion. By having: 1) non-setose anterior basalare, 2) non-setose laterotergite, 3) distinct (even if short) posterolateral lobes of the gonocoxa, 4) lack of delimited lateral margin on tergite 9 and 5) a row or an aggregation of subequal megasetae anteriorly from the juxtagonostylar megasetae on the dorsal side of the gonocoxa Manota appendiculata is similar to the following species: M. acuminata Jaschhof & Hippa , M. diversiseta , M. corcovado Jaschhof & Hippa , M. limonensis Jaschhof & Hippa , M. montivaga Jaschhof & Hippa and M. vexillifera Jaschhof & Hippa ; in lesser extent also to M. acutistylus Jaschhof & Hippa , M. rotundistylus Jaschhof & Hippa , M. planistylus Jaschhof & Hippa , M. rectolobata Jaschhof & Hippa , and M. intermedia Jaschhof & Hippa. Manota appendiculata is distinguished from all of these as well as any other described Manota by the curious sickle-shaped appendix at the lateral margin of the gonostylus ( Fig. 4 C, E). Manota appendiculata resembles M. quantilla sp. n. by having the cerci medially fused except for the apical parts. In M. appediculata the separated apical parts of cerci are conspicuously narrow while they are wide in M. quantilla . For the papillose membrane inside the hypopygium, see discussion under M. papillosa sp. n.

Etymology. The name is Latin, appendiculata , with appendix, referring to the unusual appendix on the lateral margin of the gonostylus.

Types. Holotype. Male, FRENCH GUYANA, Régina: Kaw Mts, Point Road 40, Malaise trap; 4o33’562’’ N, 52o12’425’’ W, alt 300m, 03–27.iii. 2007, leg. K. Sarv (on slide, in IZBE). Paratypes. 1 male with same data as holotype except 17–31.viii. (on slide, in IZBE). 1 male, ECUADOR, Nape Prov., Yasuni NP, Yasuni Res. Station, 00°38’ S, 76°36’ W, Malaise trap, 3–20.xi.1998, leg. T. Pape & B. Viklund (on slide, in SMNH).

Figures

FIGURE 4. Manota appendiculata sp. n. (A paratype from French Guyana, B, C, D holotype). A. Antennal flagellomere 4, lateral view. B. Hypopygium, dorsal view. C. Hypopygium, ventral view. D. Aedeagus and hypoproct, ventral view. E. Gonostylus, dorsal view. F. Juxtagonostylar megasetae, dorsal view. Scale 0.1 mm.