Myriophora diversa, 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 : 20-21

Myriophora diversa sp. nov.

(Figs 3.4, 10.8, 16.7)

Diagnosis. Female. This species can be distinguished from the similar M. luteizona , M. angustifascia , and M. obscuritergum by the lack of brown coloration on tergite 6 or the intersegmental membrane between segments 6 and 7 (Fig. 3.4) and by the shape of tergite 6, which only gradually narrows posteriorly rather than abruptly.

Description. Female (Fig. 3.4). Body length 1.93–2.38 mm. Head: Frons dusky yellow, with 2 pairs of supraantennal setae; length of lower supra-antennal setae greater than 1/2 the length of upper pair; upper supra-antennals originate even with lower interfrontal setae. First flagellomere yellow-brown, slightly pointed under arista. Palpus yellow, slightly inflated. Labrum prominent, enlarged. Thorax: Scutum brown. Scutellum light brown. Anterior scutellar setae less than 1/2 the length of posterior pair. Pleuron yellow; anepisternum with setulae and one large seta. Forefemur yellow. Midfemur yellow. Hind femur yellow with brown patch distally on anterior surface. Wing length: 1.93–2.24 mm (Fig. 10.8); costal vein normal; costal length 1.16–1.33 mm; mean costal ratio 0.60. Knob of halter light brown. Abdomen: Tergites 1 and 2 light brown; tergite 2 with strong, distinct setae on lateral margin. Tergite 5 yellow; posterior setae on tergite 5 short. Tergite 6 gradually narrows posteriorly; posterodorsal setae on segment 6 equal in length to posteroventral setae. Venter of abdomen with sparse short setae. Oviscape (Fig. 16.7) sclerites brown, membrane light with dark striations, strongly laterally compressed.

Distribution. Honduras to Colombia.

Host. Collected on unidentified Spirostreptidae (Spirobolida) .

Etymology. An adjective from Latin for "different" referring to the differentially yellow anterior portion and dark brown posterior portion of abdominal tergite 6.

Holotype. ♀, COSTA RICA: Alajuela: Villa Blanca, 10.20°N, 84.48°W, 1067m, 15.viii.2011, J. Hash, injured millipede [ LACM ENT 307175].

Paratypes. COLOMBIA: Caquetá: PNN Chiribiquete, Rio Mesaymagenta, 0.27°N, 72.92°W, 300m, 1♀, 25.i.2000, E. Gonzalez, FIT [ LACM ENT 153394]; Magdalena: PNN Tayrona, Cañaveral , 11.33°N, 74.03°W, 50m, 1♀, 29.ix–17.x.2000, R. Henriquez, CAP-791, Malaise trap [ LACM ENT 154146]. COSTA RICA: Guanacaste: Cerro Pedregal, Volcan Cacao, 10.93°N, 85.48°W, 1000m, 1♀, ii–iv.1989, I. Gauld, D. Janzen, Malaise trap [ LACM ENT 048541]; Puntarenas: 3km SW Rincon, 8.68°N, 83.48°W, 10m, 1♀, iii–v.1989, P. Hanson, Malaise trap [ LACM ENT 051027], 1♀, iii.1989, P. Hanson, Malaise trap [ LACM ENT 007125], 1♀, vi– viii.1989, P. Hanson, Malaise trap [ LACM ENT 022917], 5km SW Rincon, Tropical Youth Center, 8.70°N, 83.51°W, 40m, 1♀, 23–26.vii.2002, L. Gonzalez, Malaise trap #2 [ LACM ENT 166995], 2♀, 31.v–7.vi.1998, B. Brown, V. Berezovskiy, Malaise trap #1 [ LACM ENT 124522, 124443], 1♀, 31.v–7.vi.1998, B. Brown, V. Berezovskiy, Malaise trap #4 [ LACM ENT 086883]; San José: San Isidro del General, 9.38°N, 83.7°W, 1♀, 13– 16.vii.1963, C. L. Hogue [ LACM ENT 307176]. HONDURAS: Olancho: Catacamas, 15.83°N, 85.85°W, 600m, 1♀, 23.v.1995, R. Cordero, Malaise trap [ LACM ENT 032451].