Myriophora parva, 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 : 39

Myriophora parva sp. nov.

(Figs 6.8, 13.3, 19.2, 22.4)

Diagnosis. Female. Myriophora parva is one of only two species that have a bare anepisternum, two brown spots on tergite 3 (Fig. 22.4), and sclerotized patches of intersegmental membrane at the posterodorsal corners of T5 (e.g. 22.8). Myriophora parva is separated from M. wellsorum by the much smaller body size and the uniformly light brown abdominal tergites.

Description. Female (Fig. 6.8). Body length 1.37–1.58 mm. Head: Frons dusky yellow, with 1 pair of supraantennal setae; supra-antennals originate even with lower interfrontal setae. First flagellomere yellow, rounded under arista. Palpus yellow, normal sized. Labrum prominent, enlarged. Labellum normal sized. Thorax: Scutum dusky yellow. Scutellum dusky yellow. Anterior scutellar setae near equal in length to posterior pair. Pleuron yellow; anepisternum bare. Forefemur yellow. Midfemur yellow. Hind femur yellow. Wing length 1.37–1.75 mm (Fig. 13.3); costal vein normal; costa length 0.77–0.98 mm; mean costal ratio 0.57. Knob of halter dusky yellow. Abdomen: Tergites 1 and 2 light brown; tergite 2 with strong, distinct setae on lateral margin. Tergite 5 light brown; posterior setae on tergite 5 long. Tergite 6 rectangular to slightly narrowing posteriorly; posterodorsal setae on segment 6 equal in length to posteroventral setae. Venter of abdomen with sparse, long setae. Oviscape (Fig. 19.2) sclerites light brown; membrane light brown; division between membrane and sclerites clearly defined; strongly laterally compressed.

Distribution. Known from one site in French Guiana.

Host. Collected on unidentified dead millipedes.

Etymology. An adjective from Latin meaning "small" referring the small size of this species.

Holotype. ♀, FRENCH GUIANA: Saint-Laurent-du-Maroni: Boeuf Morte, 3.65°N, 53.22°W, 28.iv.1996, A. Berkov, ex. dead millipede [ LACM ENT 101644] ( AMNH).

Paratypes. 2♀, same as holotype, [ LACM ENT 101662, 101670].