Neomuscina atincticosta Snyder, 1949

Pereira-Colavite, Alessandre & De, Claudio J. B., 2012, Taxonomy of Neomuscina Townsend (Diptera, Muscidae) from Brazil, Zootaxa 3504, pp. 1-55 : 7-9

Neomuscina atincticosta Snyder, 1949

( Figs. 5–10 )

Neomuscina atincticosta Snyder 1949: 6 (key), 37 (description); Snyder 1954: 424 (key); Pont 1972: 50 (catalogue); d’Almeida 1993: 7 –16 (synanthropy); de Carvalho et al. 1993: 57 (catalogue); Couri & de Carvalho 2002: 154 (key); Costacurta et al. 2003: 393 (collected); Maia et al. 2002: 109 –117 (collected); Couri & de Carvalho 2005: 9 (listed); de Carvalho et al. 2005: 93 (catalogue); Rodríguez-Fernández et al. 2006: 98 (listed); Nihei et al. 2009: 7 (listed); Schühli et al. 2011: 134 (listed).

Diagnosis: dorsocentral 2:4; vein R4+5 with more than one setae on ventral region; surstylus narrow and not sinuous, with inner, large seta; ovipositor large, with strong sclerotization; fifth sternite with weak projection at the base, not lobed; male cercus with three apical, lateral and inner setulae; epiproct with four setulae, lozenge-shaped (1:2:1).

Color: general body coloration light brown; scutum with four dark stripes of grey pruinosity; humeral callus and apex of scutellum yellow; apex of anterior frons darkened; parafrontalia yellow; facialia and parafacialia white; antenna and palpus yellow; legs yellow; calypters and halter yellow; calypters with darkened borders; wing hyaline, with dark cloud on vein r-m.

Male. Length. Body: 5.4–6.1 mm; wing: 5.5–6.1 mm.

Head: eyes separated from each other by 0.1–0.12 mm, at level of ocellar tubercle; 11–12 pairs of frontal setae; ocellar seta small and convergent; postocellar seta small and divergent; inner vertical and outer vertical setae small and divergent.

Thorax: acrostichal 0:1; dorsocentral 2:4; intra-alars 2; proepimeron with three setae; katepisternum with dark setulae; apex of fore tibia with setae on anterodorsal, dorsal, posterodorsal and posteroventral surfaces; mid femur with a row of setae on posteroventral surface from base to middle; mid femur with three preapical setae, on dorsal, posterodorsal and posterior surfaces; apex of mid tibia with setae on the anterior, dorsal, posterodorsal, posteroventral, ventral and anteroventral surfaces; hind femur with a complete row of anterodorsal, posteroventral and anteroventral setae; hind tibia with two median anterodorsal setae and five to six median anteroventral setae; wing with one dorsal and one or two ventral setae at the apex of stem vein; R4+5 with two or three setae on the ventral surface.

Abdomen: fifth sternite with large and prominent setae; fifth sternite wider than long and with a close to rounded shape; fingerlike extensions highlighted; epandrium, surstylus and cercus forming a capsule-like structure; epandrium rounded in profile; cercus tapered and winding in posterior view; cercus with three apical, lateral and inner setae; surstylus not sinuous, with apex curved and many large setae on the inner side; paramere of aedeagal apodeme, in profile, broad.

Female (differing as follows): Length. Body: 5.5–6.1 mm; wing: 5.5–6.1 mm; eyes separated from each other by 0.27–0.31 mm at level of ocellar tubercle; ten pairs of frontal convergent setae, except for upper two pairs, which are divergent; ocellar and postocellar setae large and divergent, inner vertical seta large and divergent, and outer vertical seta large and convergent; ovipositor large, strongly sclerotized; dorsal spike-like setae at the center of the tergite VI, reaching the ventral region; three ventral setae in segments VI and VII; tergites VII reaching the ventral region; sternite VIII with large spike-like setae; epiproct, hypoproct and cercus very close; epiproct with four setae, the setae in a lozenge-shaped arrangement, from base to apex (1:2:1).

Comments: The examination of the male and female terminalia of N. atincticosta revealed characters that clearly distinguish it from other species of Neomuscina . This raises questions about its classification. In males, the fifth sternite is wider than long and is round. The setae on it are large and prominent. The epandrium, surstyli and cerci form a capsule-like structure. The epandrium is round, the surstyli are not sinuous, with large internal setae, and the cerci have three apical, lateral and inner setae. In females, the ovipositor is large (more than 3 mm) and strongly sclerotized, with outstanding tergites and sternites. The epiproct, hypoproct and cerci are very close, forming a capsule-like structure. These characteristics resemble those found in Cyrtoneurina Giglio-Tos.

Holotype (not examined): AMNH. Type-locality: Nova Teutônia, Santa Catarina, Brazil.

Material examined: BRAZIL. Paraná. 1 male “Curitiba – PR / BR 26.VI.1984 / R. Zonta; M. Santos” ( DZUP) \ 4 males and 1 female, same locality and collector, 28–29.VI.1984 ( DZUP) \ 1 female “Colombo – PR/ EMBRAPA BR 476 km 20 / BRASIL 04.VIII.1986 / Lev. Ent. PROFAUPAR / Malaise” ( DZUP) \ 1 male and 1 female, same locality and collector, 15.IX.1986 ( DZUP) \ 1 male, same locality and collector, 01.XI.1986 ( DZUP) \ 1 male “Guarapuava – Paraná / Est. Água Sta. Clara / BRASIL 01.IX.1986 / Lev. Ent. PROFAUPAR / Malaise” ( DZUP) \ 1 male “S. José Pinhais – PR / Ser. Mar BR 277 km 54 / BRASIL 15.IX.1986 / Lev. Ent. PROFAUPAR / Malaise” ( DZUP) \ 1 male, same locality and collector, 22.IX.1986 ( DZUP) \ 1 female “P. Grossa (V. Velha) PR / Reserva IAPAR BR376 / BRASIL 13.X.1986 / Lev. Ent. PROFAUPAR / Malaise” ( DZUP) \ 1 male “Telêmaco Borba – PR / Res. Samuel Klabin / BRASIL 20.X.1986 / Lev. Ent. PROFAUPAR / Malaise” ( DZUP) \ São Paulo. 1 male “Quaraí – SP / 21.XI.1985 / J.R. Lure leg” ( DZUP).

Geographical distribution: Brazil (Minas Gerais, Paraná, Rio de Janeiro, Santa Catarina and São Paulo [new rec.]).

Figures

FIGURES 5 – 10. Neomuscina atincticosta. Male terminalia: 5. Fifth sternite, dorsal view; 6. Epandrium, surstylus and cercal plate, lateral view; 7. Epandrium, surstylus and cercal plate, posterior view; 8. Aedeagus, lateral view. Female terminalia: 9. Dorsal view; 10. Ventral view. (Scale 0.5 mm)