Limnophora penai, Fogaça & de Carvalho, 2015

Fogaça, João Manuel & de Carvalho, Claudio J. B., 2015, Seven new species of Limnophora Robineau-Desvoidy (Diptera: Muscidae) from Ecuador, Revista Brasileira de Entomologia 59 (3), pp. 210-221 : 218-219

Limnophora penai sp. nov. ( Figs. 37–42 )

Diagnosis. This species is easily differentiated by the dorsocentral setae 2 + 3, vein R 1 with conspicuous setulae on apical dorsal e ventral surfaces; Rs node setulose and vein R 4+5 setulose dorsally beyond vein r-m.

Description. Male. Measurements (n = 5): Length: Body: 5.8–6.8 mm (6.16 mm). Wing: 4.8–5.68 mm (5.36 mm).

Color. Face silver pollinose. Antenna and arista dark brown. Palpus dark brown. Calypters uniformly whitish. Halter yellow. Wing hyaline with costal margin distinctly yellowish to apex of vein R 2+3. Prescutum dark brown, humeral callus and notopleura gray pollinose; scutum dark brown with white gray pollinose near scutellum; scutellum dark brown. Pleurae dark brown with katepisternum mostly gray pollinose. Legs dark brown. Abdomen with median longitudinal silver vittae and dark brown with silver lateral round areas on all tergites.

Head. Holoptic, distance between eyes 0.03–0.06 (0.05) times head width, eye finely and sparsely ciliated. Inner and outer vertical setae same length as ocellar seta; Frontal seta with 6–7 (6) pairs; 1 proclinate orbital seta. Ocellar setae long; ocellar triangle a tuft of hairs. Flagellomere I about 1.5–3.0 (3.0) times pedicel length, ending before insertion of vibrissa. Arista with hairs shorter than diameter of arista at base. Parafacial and fronto-orbital plate bare. Palpus filiform, slightly dilated apically.

Thorax. Chaetotaxy. Acrostichals 0 + 1; dorsocentrals 2 + 3; intra-alars 2:2; supra-alars 2; basal postpronotals 2; notopleurals 2; postsupra-alars 2. Scutellum with well developed lateral, apical scutellar setae. Anepisternum with 6–8 (7) long setae; katepisternal seta 1 + 2. Prosternum setulose.

Legs. Fore femur with complete rows of posterodorsal and posteroventral setae; fore tibia with median seta on posterior surface; 2 apical setae (dorsal and posteroventral). Mid femur on ventral surface with 5 stronger setae on basal half; posterior surface with 2 pre-apical setae; mid tibia with 1 supra-median and submedian setae on posterior surface; 3 apical setae (anterior, ventral and posteroventral). Hind femur with complete row of setae on anterodorsal surface and anteroventral surface with 4–5 (5) setae on apical half; hind tibia with 1 median seta on anterodorsal and posteroventral surfaces; 2 apical setae (dorsal and anteroventral).

Wing. Vein R 1 with conspicuous setulae on apex of dorsal and ventral surfaces; Rs node setulose and vein R 4+5 setulose dorsally beyond vein r-m, vein dm-cu slightly sinous, apical portion of vein M bent toward vein R 4+5.

Abdomen. Tergite III with row of setae on margin; tergite IV with 1 pair median marginal seta; tergite V with row of setae on margin and 1 pair median marginal seta. Sternite 1 bare; sternite 5 triangular, longer than wide, with few and sparse setae ( Fig. 37 ).

Terminalia. Cercal plate longer than wide, with submedian fusion, with long setae on inner apex; surstylus smaller than length of cercal plate ( Fig. 38 ). Distiphallus median, about 2.0 times the length of pregonite; postgonite curved and similar length of epiphallus ( Fig. 39 ).

Female. Length: Body: 5.52–6.0 mm. Wing: 4.96–5.6 mm. Similar to male but, dichoptic, distance between eyes 0.42–0.43 times head width. Frontal seta with 5 pairs of setae, 2 reclinate orbital setae; inner vertical setae convergent; outer vertical setae divergent. Fronto-orbital plate with few setulae. Thorax with wide vitta brown and 2 narrow vittae gray ending on scutellum.Wing hyaline, without cloudy spots.

Type material

Holotype. Male : “Faz. Maria Isabel, \ Sur Cuenca 2800 m. \ Rio Tarqui, \ Ecuador. XII-1970 \ L. E. Peña col.[white printed label]”; “ Holotipo [red printed label]” ( MZSP) . Paratypes. 1 male, 2 females same data as holotype. (1 female MZSP, 1 male, 1 female DZUP) ; 10 males, 9 females “E. Papallacta \ (Quito Baeza) \ Ecuador. 2900 m. I-1-71 \ L. E. Peña col.” ( MZSP; DZUP); GIRÓN : 5 males, 2 females, “ Sta. Isabel , Girón \ Ecuador. 1800–2400 m. \ XII-1970 \ L. E. Peña col.” (3 males, 1 female MSZP; 2 males, 1 female DZUP); CHAUCHA : 6 males, 1 female, “ Chaucha (N. Cañar) \ Ecuador 3300 m. \ XII-1970 \ L. E. Peña col.” ( MZSP; DZUP); SARAGURO : 1 male, 1 female, “S. de Saraguro , \ 2900 m. Ecuador \ XI. 1970 \ L. E. Peña col.” ( DZUP) .

Distribution. ECUADOR: Azuay (Cuenca, Giron), Cañar (Chaucha), Loja (Saraguro).

Etymology. Name in apposition. The specific epithet is a tribute to L.E. Peña, who collected an important number of specimens used in this study.

Figures

Figs. 37–39. Limnophora penai sp. nov., male terminalia:37. Fifth sternite, dorsal view; 38.Epandrium, surstylus and cercal plate, posterior view; 39. Aedeagus, lateral view (scale 1 mm).

Figs. 40–42. Limnophora penai sp. nov., male: 40. Lateral view; 41. Dorsal view; 42. Frontal view.