Coniceromyia diadella, Ament & Kung & Brown, 2020

Ament, Danilo César, Kung, Giar-Ann & Brown, Brian V., 2020, Forty-one new species of Coniceromyia Borgmeier (Diptera: Phoridae), an identification key, and new distributional records for the species of the genus, Zootaxa 4830 (1), pp. 1-61 : 20

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Coniceromyia diadella

sp. nov.

Coniceromyia diadella sp. nov.

( Figs. 3B View FIGURE 3 , 8N View FIGURE 8 , 14B View FIGURE 14 , 19C View FIGURE 19 , 24O View FIGURE 24 , 26F View FIGURE 26 )

Diagnosis (male). Large wings (1.4 times longer than body length), wing thin veins and membrane deflected posteriorly ( Fig. 14B View FIGURE 14 ), hind tibia apical quarter inflated with dorsal carina which continues along posteroapical margin, dense setulae posteriorly adjacent to the carina ( Fig. 26F View FIGURE 26 ).

Material examined. Holotype ♂, ECUADOR: Napo: Volcán Sumaco , 0.55ºS, 77.68ºW, 14–16.iii.1996, yellow pan, 2100 m, P. Hibbs col. [LACM ENT 054937]. GoogleMaps

Description. Male. Body length, 2.5 mm. Head. Frons brown, shining, sparsely setulose, with weak median furrow. Flagellomere 1 light brown, conical very elongate. Arista could not be observed. Palpus light brown. Gena with two short setae; postocular seta short. Thorax. Scutum, scutellum, and pleural regions brown, shining; anepisternum bare. Legs narrow, elongated, yellowish-brown, except foretarsus and venter of forefemur brown. Foretibia with two small dorsal setae and anterodorsal row of strong setulae. Foremetatarsus with yellowish-brown anterior excavation, thick anteroapical setulose process, group of setae at excavation base, carina adjacent to excavation dorsal margin ( Fig. 8N View FIGURE 8 ). Foremetatarsus ratio 0.3. Posterior face of hind femur with narrow basoventral band of tiny blunt setulae ( Fig. 19C View FIGURE 19 ). Hind femur height/length ratio 0.23. Hind tibia with one dorsal seta in basal half, apical quarter inflated with dorsal carina which continues along posteroapical margin; dense setulae posteriorly adjacent to the carina. Wing ( Fig. 14B View FIGURE 14 ). Large (1.4 times longer than body length), thin veins and membrane deflected posteriorly, membrane between apices of R 1 and R 4+5 darkened. Costa considerably swollen, 0.48 of the wing length; R 2+3 absent; M 1 slightly sinuous; M 2 nearly straight, CuA 1 -M 2 /M 2 -M 1 ratio 1.1; CuA 1 nearly straight. Halter white.

Abdomen. Tergites brown, with shining pubescence. Hypopygium light brown ( Fig. 24O View FIGURE 24 ). Left epandrial process with a subepandrial wall extending from the hypoproct to its apex and a medially directed setulose projection near its base. Hypoproct with two setae.

Distribution. Known from a single mid-elevation site in Ecuador.

Etymology. Name derived from the Greek word diadelos (distinguishable, distinctive) and refers to the many uncommon features of this species such as its large wings and inflated hind tibia.