Myriophora nigralinea, Hash, John M. & Brown, Brian V., 2015

Hash, John M. & Brown, Brian V., 2015, Revision of the New World Species of the Millipede-Parasitic Genus Myriophora Brown (Diptera: Phoridae), Zootaxa 4035 (1), pp. 1-79 : 37

Myriophora nigralinea sp. nov.

(Figs 6.3, 12.8, 18.9)

Diagnosis. Female. Myriophora nigralinea is clearly recognizable among all Myriophora by the dark line on the ventral half of the oviscape membrane (Fig. 18.9). M. nigralinea also has wings that are clearly much longer than the body (Fig. 6.3).

Description. Female (Fig. 6.3). Body length 1.51–1.82 mm. Head: Frons brown, with 1 pair of supra-antennal setae; supra-antennals originate above lower interfrontal setae. First flagellomere brown, rounded under arista. Palpus yellow-brown, normal sized. Labrum normal sized. Labellum normal sized. Thorax: Scutum brown. Scutellum brown. Anterior scutellar setae near equal in length to posterior pair. Pleuron light brown; anepisternum bare. Forefemur dusky yellow. Midfemur dusky yellow. Hind femur yellow with brown patch distally on anterior surface. Wing length 2.03–2.49 mm (Fig. 12.8); costal vein normal; costal length 1.16–1.51 mm; mean costal ratio 0.61. Knob of halter brown. Abdomen: Tergites 1 and 2 brown; tergite 2 with strong, distinct setae on lateral margin. Tergite 5 brown; posterior setae on tergite 5 short. Tergite 6 rectangular to slightly narrowing posteriorly; posterodorsal setae on segment 6 of equal length to posteroventral setae. Venter of abdomen with sparse short setae. Oviscape (Fig. 18.9) sclerites reddish-brown and with long setae on lateral margins; membrane brown with black stripe on ventral half; strongly laterally compressed; division between membrane and sclerites clearly defined.

Distribution. Known from a single site in Ecuador.

Host. Unknown.

Etymology. A noun from Latin for "black line" referring to the distinct black line on the oviscape membrane.

Holotype. ♀, ECUADOR: Napo: Oyacachi, 0.22°S, 78.08°W, 3000m, 19.ii–29.iii.1996, P. Hibbs, FIT [ LACM ENT 021135].

Paratypes. 2♀, same as holotype, 6–19.vii.1996, [ LACM ENT 0 61131, 061204].