Neomuscina douradensis Lopes & Khouri, 1996

Pereira-Colavite, Alessandre & De, Claudio J. B., 2012, Taxonomy of Neomuscina Townsend (Diptera, Muscidae) from Brazil, Zootaxa 3504, pp. 1-55 : 13-14

Neomuscina douradensis Lopes & Khouri, 1996

( Figs. 23–28 )

Neomuscina douradensis Lopes & Khouri, 1996: 953 (description), 954 figs. 1–3 and 5 (respectively: fifth sternite; cercal plate, dorsal view; cercal plate, lateral view; aedeagus), 956 fig. 8 (aedeagus, dorsal view); de Carvalho et al. 2005: 93 (catalogue).

Diagnosis: acrostichal 0:1; dorsocentral 2:4; male: intra-alars 2; mid femur with two preapical setae; general body coloration golden yellow; male: fifth sternite with slight basal projection; cercus tapered apically; wing with a continuous dark cloud running from R1 to R2+3; r-m and dm-cu with brownish clouds.

Color: general body coloration golden yellow; frontalia, parafrontalia, antenna and palpus yellow; facialia and parafacialia white; scutum with one light stripe of grey pruinosity; legs yellow; calypters and halter yellow; wing hyaline, with a continuous dark cloud running from R1 to R2+3; r-m and dm-cu with brownish clouds.

Male. Length. Body: 6.2 mm; wing: 6.4 mm.

Head: eyes separated from each other by 0.06–0.07 mm at level of ocellar tubercle; 9–10 pairs of frontal setae (from the sixth pair on they are weak, like cilia); ocellar seta small and parallel; postocellar seta small and divergent; inner vertical and outer vertical setae small and divergent.

Thorax: acrostichal 0:1; dorsocentral 2:3; intra-alars 2; fore tibia with a distinct anterodorsal median seta and a small, almost inconspicuous, submedian seta on the same surface; apex of fore tibia with setae on anterodorsal, dorsal, posterodorsal, posteroventral and ventral surfaces; mid femur with a row of setae on anterior and posteroventral faces surfaces from base to middle; mid femur with two preapical setae, on posterodorsal and posterior surfaces; apex of mid tibia with setae on all surfaces; hind femur with a complete row of dorsal and anteroventral setae, a row of anterodorsal setae from base to second third and a row of posteroventral setae from base to middle; hind tibia with one median anterodorsal seta and two median anteroventral setae; hind tibia with anterior, anterodorsal, dorsal, posterodorsal, ventral and anteroventral setae at the apex; wing with one or two dorsal setae and one ventral seta at the apex of stem vein.

Abdomen: fifth sternite with a slight basal projection; epandrium as wide as long.

Female (differing as follows): Length. Body: 6.1–6.2 mm; wing: 6.5 mm; eyes separated from each other by 0.3–0.31 mm at level of ocellar tubercle; 9–10 pairs of frontal convergent setae, except for top two pairs, which are parallel; ocellar and postocellar setae large and divergent; inner vertical seta large and convergent, and outer vertical seta large and divergent; sternite VIII with strong spike-like setae; epiproct with four setae, setae in a square-shaped arrangement (2:2).

Comments: N. douradensis can be easily distinguished by its intense yellow color, different from that of all other species examined. Males have a characteristic triangular sternite V and epandrium as wide as long. Females have sternite VIII with strong spike-like setae.

Type material examined: Holotype: male; chaetotaxy incomplete; fore and median left legs on triangle; median and hind right legs missing; right wing broken next to the base; abdomen dissected and stored in a microvial with glycerin; label: white, printed “ BRASIL, Mato Grosso do Sul, Dourados / III-1974, M. Alvarenga & O. Roppa leg.”; label: red, printed HOLOTYPE ( MNRJ). Type-locality: Dourados, Mato Grosso do Sul, Brazil.

Paratypes: BRAZIL. Mato Grosso do Sul. 1 male and 3 female “Mun. Dourados, Mato Grosso, Brasil / Alvarenga & Roppa, III-74 ” ( MNRJ).

Geographical distribution: Brazil (Mato Grosso do Sul [type-locality]).

Figures

FIGURES 23 – 28. Neomuscina douradensis. Male terminalia: 23. Fifth sternite, dorsal view; 24. Epandrium, surstylus and cercal plate, lateral view; 25. Epandrium, surstylus and cercal plate, posterior view; 26. Aedeagus, lateral view. Female terminalia: 27. Dorsal view; 28. Ventral view. (Scale 0.5 mm)