Manota aquila, Hippa, Heikki, 2011

Hippa, Heikki, 2011, New species and new records of Manota Williston (Diptera, Mycetophilidae) from Thailand, with a key to the Oriental and Palaearctic species, Zootaxa 2763, pp. 39-60 : 40-41

Manota aquila sp. n.

Figs. 1 A, B, C

Male. Colour. Head dark brown, clypeus slightly paler brown. Antenna unicolorous dark brown. Mouthparts pale yellowish. Thorax unicolorous dark brown. Legs pale yellowish brown. Base of coxa 3, apices of all coxae, all trochanters and base of femur 1 infuscated and femur 2 and 3 dark brown. Wing brownish with a darker brownish patch at costal margin; haltere pale yellowish, without a darker knob. Abdomen unicolorous dark brown. Setae and trichia dark, largely pale on palpus and basal part of coxae. Head. Antennal flagellomere 4, Fig. 1 A. Palpomere 3 of maxillary palpus with apicomesial thumb-like extension but without apically expanded curved sensilla; palpomere 4 without parasegment; palpomere 5 1.6 times longer than palpomere 4. Ca. 10 strong postocular setae on each side. Thorax. Anepisternum nonsetose, anterior basalare nonsetose, preepisternum 2 nonsetose, laterotergite setose, with 2–4 setae, episternum 3 setose, with 4 setae. Legs. Middle tibial organ lacking. Wing. Similar to fig. 1 B in Hippa & Ševčík (2010): R1 meeting C just on the apical half of the costal margin, sclerotized part of M2 basally extending nearly to level of r-s; wing length 1.8 mm. Hypopygium, Figs. 1 B and C. Sternite 9 about one half of ventral length of gonocoxa, lateral margin sharply demarcated, slightly convex, posterior margin deeply v-shaped notched, anterior margin with deep incision, setae similar to ventral setae of gonocoxa. Ventral mesial margin of gonocoxa simple, posteriorly roundly curved laterad. Parastylar lobe almost as long as gonocoxa and directed posteriad, with a row of setae apicomesially. Paraapodemal lobe indistinct. Dorsal mesial margin of gonocoxa simple, at middle united with a broad setose posteriorly directed thumb-like lobe. No apical apophysis dorsally at apical margin of gonocoxa. Two juxtagonostylar setae present: a curved megaseta and a thinner seta arising from a flattened, winded very long basal body, which is ca. four times as long as megaseta. Gonostylus elongated, evenly broad, ca. 4 times longer than broad, almost as long as gonocoxa, with a narrow subbasal apically strong and long setose lobe at the mesial margin; ventral setae rather short, setae at the mesial and lateral margin on the apical half of gonostylus very long, dorsal side nonsetose, setae on mesial margin do not form a conspicuous fringe. Aedeagus subtriangular, without distinct lateral shoulders, apex curved ventrad. Hypoproct posteriorly not reaching middle of gonostylus, medially not distinctly divided into two halves, with ca. 20 ventral setae. Cerci medially united except for apical parts.

Female unknown.

Discussion. Manota aquila is very similar to M. forceps and M. subforceps, but can be distinguished from both e.g. by following characters: 1) sternite 9 has a deep v-shaped posteromedial cleft cutting the sternite almost completely into two halves, while in the two other species the posterior margin is convex or at most slightly notched, 2) there is a narrow apically setose lobe at the mesial margin of the gonostylus, while in the two other species the mesial margin has only a slight convexity subbasally ( M. forceps ) or submedially (M. subforceps) and 3) the haltere is unicolorous yellowish instead of having a yellowish stem and a blackish knob. Further, in the single specimen of M. aquila the laterotergite has a few setae, while in the two known specimens of M. forceps and the single known specimen of M. subforceps the laterotergite is nonsetose. I suspect that specimens of M. aquila with nonsetose laterotergite do occur.

Etymology. The name is Latin, aquila , dark-coloured, referring to the general dark colouration of the fly.

Types. Holotype. Male, THAILAND, Phitsanulok, Thung Salaeng Luang NP, dry evergreen forest, 1650.277'N 10052.917'E, 486 m, Malaise trap 25.iii–1.iv.2007, Pongpitak & Pranee & Sathit leg., T2391 (in QSBG).

Figures

FIGURE 1. Manota aquila sp. n. (holotype). A. Antennal flagellomere 4, lateral view. B. Hypopygium, dorsal view. C. Hypopygium, ventral view. Scale 0.10 mm. aed = aedeagus, ce = cercus, gs = gonostylus, gx = gonocoxa, gx a = gonocoxal apodeme, gx d = dorsal mesial margin of gonocoxa, gx l = lobe at dorsal mesial margin of gonocoxa, gx v = ventral mesial margin of gonocoxa, hpr = hypoproct, jx s = juxtagonostylar setae, jx b = basal body of juxtagonostylar setae, ps l = parastylar lobe, st 9 = sternite 9.