Rhinoleucophenga nigrescens Malogolowkin, 1946

Poppe, Jean Lucas, Valente, Vera Lúcia Da Silva, Santos, João Pedro Junges Dos & Gottschalk, Marco Silva, 2016, A new species of the genus Rhinoleucophenga (Diptera: Drosophilidae) and redescription of five species from Neotropical region, Zootaxa 4208 (3), pp. 261-281 : 273

Rhinoleucophenga nigrescens Malogolowkin, 1946

( Figures 8 a–e; Table 1)

Rhinoleucophenga nigrescens Malogolowkin, 1946: 421 . Malogolowkin, 1946: 417 (key), 421 (figure 10).

Material examined: HOLOTYPE ♀ (dried and mounted specimen, deposited in CEIOC) labelled “ Rhinoleucophenga nigrescens DET—Chana Malogolowkin Rio, V-946 \ Inst. Osw. Cruz n° 8.120 \ HOLOTYPUS ”. Right wing, left hindleg and terminalia were disarticulated and lost.

Diagnosis. Body dark brown. Front covered with ca. 200 scattered interfrontal setulae. Arista with long branches. Four pairs of prescutellar acrostichal setae. Hyaline wings. Abdomen dark brown-black, tergites with continuous stripes. Body length ca. 6.50 mm.

Description. Head ( Fig. 8 a). Front ventrally dark brown and superiorly brown, covered with ca. 200 scattered interfrontal setulae; ocellar triangle and ocelli dark brown. Carina nose-like and ca. 80% sulcated. Face brownish; gena brown; antenna with flagellomore and pedicel homogeneously brownish; arista with 11 long dorsal branches and 7 long ventral branches. Palpus brownish with ca. 40 setae on lower part.

Thorax ( Fig. 8 c, d). Scutum and scutellum homogeneously dark brown. Ten irregular rows of acrostichal setulae. Four pairs of prescutellar acrostichal setae, the central one is the longest. Pleura and halteres brown. Legs homogeneously brown.

Wings ( Fig. 8 b). Hyaline, without spots.

Abdomen ( Fig. 8 e). Proximally dark brown and distally black, tergites with stripes continuous.

Terminalia unknown.

For more measures and indices see Table 1.

Distribution. Known only from the type locality (probably Salobra, a district of the municipality of Miranda, Mato Grosso do Sul, Brazil).

Figures

FIGURE 8. Rhinoleucophenga nigrescens Malogolowkin. Holotype, dried and mounted specimen, a: head, frontal view; b: wing; c: general habitus, lateral view; d: thorax, dorsal view; e: abdomen, dorsal view (scale bar 1.0 mm).