Manota ibanezi, Hippa, Heikki & Huerta, Heron, 2009

Hippa, Heikki & Huerta, Heron, 2009, The genus Manota Williston (Diptera: Mycetophilidae) in Mexico, Zootaxa 2020, pp. 51-62 : 55-56

Manota ibanezi sp. n.

Figs. 3 A, B, C

Male. Colour. Head yellowish-brown, frons, vertex and occiput darker brown. Antenna unicolorous, concolorous with face. Mouthparts pale yellowish, paler than the face. Thorax pale brown, ventral part of preepisternum 2 paler than the other parts. Legs pale yellowish, apices of coxae 2 and 3 and their trochanters infuscated, the apical part of femur 3 very faintly darker than the other parts. Wing unicolorous yellowishbrown; haltere yellowish-brown with dark brown knob. Abdominal tergites pale brown, sternites very pale, almost colourless. All the setosity pale, yellowish or brownish, the thicker setae seeming darker than the finer setae and trichia. Head. Antennal flagellomere 4, Fig. 3 A. Palpomere 3 of maxillary palpus with apicomesial extension, with 4 apically expanded curved sensilla; palpomere 4 with parasegment; palpomere 5 1.4 times as long as palpomere 4. Number of large postocular setae 8. Thorax. Anepisternum setose, with 40 setae, anterior basalare setose, with 9 setae, preepisternum 2 non-setose, laterotergite setose, with circa 13 setae, episternum 3 setose, with 6 setae. Wing similar to Fig. 1 B, length 1.5 mm. Hypopygium, Figs 3 B, C: Sternite 9 with lateral margin fused with gonocoxa, anterior margin with a shallow notch, posterior margin apparently convex and extending to level of the base of parastylar lobes, but in the single mount the adjoining membraneous structures protrude posteriad and make the sternite longer than it probably usually is; setae similar to the ventral setae of gonocoxa. Ventral mesial and posterior margins of gonocoxa contiguous, slightly sigmoid. Parastylar lobe well-developed but rather firmly fused with gonocoxa, directed posteromesad, with 4 apical setae. Paraapodemal lobe absent. Dorsal mesial margin of gonocoxa simple, slightly convex, posteriorly with a few stronger setae differing from other dorsal setosity, the posteriormost being strongest, megaseta-like. At dorsal mesial margin, lying on a more ventral level, with a semi-globular lobe bearing circa 10 megasetae. Otherwise, setae on dorsal side of gonocoxa unmodified. With no distinct posterolateral lobe on gonocoxa. Gonocoxal apodemes unusually curved in the single mount. Juxtagonostylar setae absent or not identifiable. Gonostylus broadly oval, apically not lobed, ventral side with unmodified setae, dorsal side non-setose, at apex with one straight and two curved setae which are conspicuously stronger than the other gonostylar setae. Aedeagus with a narrow parallel-sided apical half which abruptly widens to circa three times as broad as basal half; apical part without membraneous lateral lobes; the apex curved ventrad. Hypoproct large, extending further posteriad than gonostyli, with circa 25 scattered setae on each half. Cerci mesially separate. Tergite 9 unusually well visible, connected with cerci.

Female. Unknown.

Discussion. M. ibanezi is similar to M. major Jaschhof & Hippa and M. squamulata Jaschhof & Hippa. It is most easily distinguished from both by the setae at the apical margin of the gonostylus. In M. ibanezi there are three conspicuously stout, short setae, a straight one and two curved ones, whilst in M. major and M. squamulata the apical setae are similar to other gonostylar setae except for being very long. Furthermore, M. ibanezi differs by lacking a very strong transverse megaseta posteriorly at the dorsal mesial margin of the gonocoxa. In M. major and M. squamulata , the megaseta is much thicker than the megasetae on the subglobular lobe situated more anteriorly at the dorsal mesial margin of gonocoxa, whereas in M. ibanezi the homologous seta is inconspicuous and thinner than the megasetae on this lobe. M. ibanezi differs from M. squamulata and resembles M. major by the simple, not bilobed apex of the gonostylus. It differs from M. major and is similar to M. squamulata in having circa 10 instead of over 15 megasetae on the abovementioned sub-globular lobe.

Etymology. The species is named after Dr Sergio Ibáñez-Bernal, one of the collectors of the holotype. Types. Holotype. Male, MEXICO, Veracruz, Loc. Dos Amates, 24 julio 1995, Trampa Malaise, Cols. Ibáñez-Bernal S. & Paz Rodríguez (in CAIM).

Figures

FIGURE 1. Male wing (A, B), dorsal view, male maxillary palpus (C), mesial view, apical part of female abdomen (D), lateral view. A, B, C. Manota nubicola sp. n. (paratypes). D. M. mexicapan sp. n. Scale for A and B 1 mm, for C and D 0.1 mm.

FIGURE 3. Manota ibanezi sp. n. (holotype): A. Antennal flagellomere 4, lateral view. B. Hypopygium, ventral view. C. Hypopygium, dorsal view. Scale 0.10 mm.