Myriophora porrasae, 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 : 41

Myriophora porrasae sp. nov.

(Figs 7.4, 13.6, 19.6)

Diagnosis. Female. The oviscape sternite distinctly projects past the posterior extent of the oviscape membrane (Fig. 19.6), the lateral surface of abdominal segments 3 and 4 are bare (Fig. 7.4), and oviscape sclerites are shallow, barely extending over the lateral face.

Description. Female (Fig. 7.4). Body length 1.40–1.89 mm. Head: Frons dusky yellow, with 1 pair of supraantennal setae; supra-antennals originate even with lower interfrontal setae. First flagellomere yellow, slightly pointed under arista. Palpus yellow, normal sized. Labrum prominent, enlarged. Labellum normal sized. Thorax: Scutum dusky yellow. Scutellum dusky yellow. Anterior scutellar setae about 3/4 of the length of posterior pair. Pleuron yellow; anepisternum with few setulae. Forefemur yellow. Midfemur yellow. Hind femur yellow. Wing length 1.40–1.93 mm (Fig. 13.6); costal vein normal; costal vein length 0.84–1.12 mm; mean costal ratio 0.59. Knob of halter light brown. 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 short. Tergite 6 greatly narrowed posteriorly; posterodorsal setae on segment 6 shorter than posteroventral setae. Venter of abdomen with dense, short setae. Oviscape (19.6) sclerites reddish-brown; strongly laterally compressed; sternite distinctly projects posteriorly beyond membrane and tergite; division between membrane and sclerites clearly defined.

Distribution. French Guiana.

Host. This species has been collected on an injured juliform millipede in Brazil.

Etymology. Named for Wendy Porras, collector of an important molecular specimen of this species and its host data, and in acknowledgment of her fieldwork assistance in Costa Rica.

Holotype. ♀, FRENCH GUIANA: Boeuf Morte, 3.65°N, 53.22°W, 28.iv.1996, A. Berkov, ex. dead millipede [ LACM ENT 101684] ( AMNH).

Paratypes. 7♀, same as holotype, [ LACM ENT 101660, 101674, 101657, 101658, 101622, 101594, 101638].