Mycomya paraklossi, Väisänen, Rauno, 2014

Väisänen, Rauno, 2014, New Mycomya species from South-East Asia (Diptera, Mycetophilidae), Zootaxa 3815 (4), pp. 526-540 : 533

Mycomya paraklossi sp. n.

Figs. 5 A–E

Material studied. Holotype. ♂. PHILIPPINES, Mindanao, Mt. Apo, Agko 1350 m alt. Malaise trap. 3–5.viii. 1978, Nakanishi, A & Yata, O. leg (KUC). Paratype. Same data, 1 ♂ (KUC).

Description. ♂. Head. Palp, other mouthparts, face and posterior parts of head yellow, ocellar prominence brown. Antenna light brownish, scape, pedicel and base of 1st flagellomere yellow. 1st flagellomere about 2x its width, 2nd flagellomere 1.5x its width. Thorax. Pronotum yellow, with 3–4 long setae. Scutum yellowish with 3 yellow longitudinal stripes, posterolateral corners brown. Anepisternum and preepisternum yellow. Scutellum brown, with 4 long setae. Laterotergite brown. Mediotergite brownish, bare. Wing. Length 3.4–3.6 mm. Wing hyaline, small cell and wing apex weakly infuscated. Sc ending in R1 distinctly distad of middle of small cell, Sc1 missing. Apical part of Sc bearing about 15 small setae. Small cell 1.5– 2 x as long as wide. Cu fork slightly distal to M fork. M ratios: 0.65–0.86, 0.79–1.12. Cu ratios: 0.80, 1.18. Small setae: M petiole: 0; M1: 0; M2: 0; Cu petiole: 0; Cu1: 0; Cu2: 0. Halter pale yellowish, apex brown. Legs. Coxae and femora yellow, tibiae and tarsi brownish. Coxa 2 without spur. Leg ratios: bt1:t1 = 0.79, bt2:t2 = 0.68, bt3:t3 = 0.55. Abdomen. Tergites 1–5 anteriorly yellow to yellowish, posteriorly brown, tergite 5 with brown median line, tergites 6–7 brown. Sternites 1–5 yellow, 6–7 brownish. Hypopygium. Figs. 5 A–E, yellow. Sternal lateral appendage densely setose, very large and rounded, its subapical part distinctly wider than its basal part ( Fig. 5 C). Setae of sternal synsclerite (and its apical part sternal lateral appendage) strong. Apical 2/3 of sternal synsclerite covered by strong, long setae. Sternal submedian filament shorter than sternal lateral appendage, slightly curved ( Fig. 5 C). Apex of aedeagus rounded ( Fig. 5 D).

Discussion. Mycomya paraklossi belongs to the subgenus Cymomya (as discussed for M. klossi above). It is a relatively small species with some wing markings like those in M. klossi , another pale, small species. The hypopygium of M. paraklossi resembles that of M. klossi in having large, densely setose, sternal lateral appendages. The sternal lateral appendage of M. paraklossi is much larger and with stronger setae than in M. klossi or any other Oriental Cymomya , and its subapical part is distinctly wider than its basal part ( Fig. 5 C), whereas in M. klossi the subapical part is about as wide as the basal part ( Fig. 2 C). Mycomya paraklossi is also distinctly larger (wing length 3.4–3.6 mm) than M. klossi (wing length 2.5 mm). The holotype of M. paraklossi was collected with a Malaise trap at 1350 m in August on Mt. Apo, the highest mountain (2954 m) in the Philippines. It is a volcanic mountain with many endemic species and has been a national park since 1936.

Etymology. The species name is a noun in apposition and refers to the similarity of the species to M. klossi Edwards, 1931 .

Figures

FIGURE 2. Mycomya klossi Edwards, apical part of male hypopygium. A – B tergal and sternal views, C sternal lateral appendage. Scale 0.2 mm.

FIGURE 5. Mycomya paraklossi sp. n., male hypopygium. A – C tergal, sternal and lateral views, D apex of aedeagus, twice enlarged, E tergite 8. Scale 0.2 mm.