Rhinoleucophenga, Hendel

Poppe, Jean Lucas, Schmitz, Hermes José, Grimaldi, David & Valente, Vera Lúcia Da Silva, 2014, High diversity of Drosophilidae (Insecta, Diptera) in the Pampas Biome of South America, with descriptions of new Rhinoleucophenga species, Zootaxa 3779 (2), pp. 215-245 : 230-231

Key to Rhinoleucophenga species recorded in Pampas

1. Wings clouded at least on cross veins and the end of veins R 2+3 and R 4+5; body length 5.5 mm or larger.................. 2

- Wings hyaline; size variable............................................................................. 5

2. End of M vein not clouded, costal cell not clouded; body color mainly yellow...................................... 3

- End of M vein strongly clouded, costal cell clouded; body color brownish......................................... 4

3. Aristawith 9–10 dorsal branches; aedeagus dorsoventrally flattened, seems slightly oval, rounded on top, with a slight elongation ( Fig. 11a )............................................... R. obesa (Loew), 1872 (sensu Malogolowkin, 1946)

- Aristawith 7–8 dorsal branches; aedeagus dorsoventrally flattened, resembles the shape somewhat D-shaped, with an elongation medially on top ( Fig. 11b ).................................... R. gigantea (Thomson), 1869 (sensu Vilela, 1990)

4. R 2+3 vein with ca. 2–4 clouded supernumerary veins, wings without clouded spots in the anterior region...................................................................................................... R. pampeana sp. nov.

- R 2+3 vein without supernumerary veins, wings with large clouded spots in the anterior region (on the Sc, R 1, R 2+3, basal R 4+5 and bM-Cu veins)................................................................... R. lp5 (undescribed species)

5. Scutum unicolorous, without spots or stripes................................................................ 6

- Scutum covered with small brownish spots and two diffuse longitudinal brown stripes between the dorsocentral setae..... 7

6. Arista with very short branches; yellowish fly; abdomen yellowish with interrupted brown strips........................................................................................................ R. subradiata Duda, 1929

- Arista with long branches; brownish fly; abdomen brownish with terminal portion darker brown, strips interrupted or not... 8

7. Ocelli with dark brown outline; scutellum unicolorous.................................... R. punctulata Duda, 1929

- Ocelli and ocellar triangle concolorous; scutellum with darker borders...................... R. lp1 (undescribed species)

8. Front covered with less than 70 scattered interfrontal setulae; abdomen with interrupted brown stripes; costal index less than 4; scutellum and scutum concolorous; 3 pairs of prescutellar setae................................................. 9

- Front covered with ca. 200 scattered interfrontal setulae; abdomen with continuous brown stripes; costal index ca. 4; scutellum darker than scutum, almost black, 4 pairs of prescutellar setae............................ R. lp3 (undescribed species)

9. Front covered with ca. 60 scattered interfrontal setulae, frontal index approximately 1.0; male terminalia as in Fig. 9 a–b...................................................................................... R . missionera sp. nov.

- Front covered with ca. 50 scattered interfrontal setulae, frontal index approximately 1.3; male terminalia as in Figure 10 a–c. R . sulina sp. nov.

Figures

FIGURE 9. Terminalia of Rhinoleucophenga missionera sp. nov. Ventral view of aedeagus (a), lateral view of aedeagus (b), dorsal view of female terminalia (c), ventral view of female terminalia (d), spermatheca (e). (Scale bars = 0.1 mm)

FIGURE 10. Terminalia of Rhinoleucophenga sulina sp. nov. Epandrium (a), ventral view of aedeagus (b), dorsal view of aedeagus (c), dorsal view of female terminalia (d), spermatheca (e), ventral view of female terminalia (f). (Scale bars = 0.1 mm)

FIGURE 11. Dorsal view of aedeagus of Rhinoleucophenga obesa (a). Dorsal view of aedeagus of Rhinoleucophenga gigantea (b). Ordinarie specimens collected in a natural area of pampas in the municipality of Bossoroca, RS, Brazil (28°45’01”S 54°56’55”W), 07.iv.2012. Col.: JL Poppe; banana bait. Scale bar = 0.1 mm.