Rhipidia (Eurhipidia) garruloides (Alexander, 1933)

Zhang, Xiao, Li, Yan & Yang, Ding, 2014, A review of the genus Rhipidia Meigen from China, with descriptions of seven new species (Diptera, Limoniidae), Zootaxa 3764 (3), pp. 201-239 : 207-209

Rhipidia (Eurhipidia) garruloides (Alexander, 1933)

( Figs. 9–15 )

Limonia (Rhipidia)garruloides Alexander, 1933b: 395 . Type locality: Mt. Omei, Sichuan ( China).

Diagnosis. Male antenna only 11-segmented with eight bipectinate flagellomeres. Pleuron brownish yellow with a indistinct brownish black longitudinal stripe. Tarsi snowy white. Wing white with brownish black clouds; Sc1 ending at one-fourth to one-third length of Rs, M3 lying free by atrophy of its basal connection and m-m, basal section of CuA1 proximad of fork of M. Lobe of gonostylus with two rostral spines.

Description. Male. Body length 3.5–4.0 mm, wing length 4.0– 4.5 mm.

Head (fig. 10). Brownish yellow with grayish white pollen. Hairs on head brown. Antenna 0.8 mm long. Scape and pedicel brownish yellow, flagellomeres one to eight pale yellow with basal enlargements and branches brownish yellow, terminal flagellomere brownish yellow. Each of flagellomeres one to eight inclusive with two branches which are the longest at fourth or fifth flagellomere and nearly twice as long as corresponding flagellomere; terminal flagellomere longated, exceeding penultimate. Labellum and palpus brownish yellow with brown hairs.

Thorax (fig. 9). General brownish yellow with grayish white pollen. Notum brownish yellow. Pleuron brownish yellow with a indistinct brownish black longitudinal stripe extending from cervical region to base of abdomen. Coxae and trochanters yellow; femora brownish yellow with tips darker; tibiae yellow; tarsi snowy white. Hairs on legs brown. Wing (figs. 11, 12) white with brownish black clouds: brownish black spot at base of CuA; two large brownish black areas at two places, first one at tip of R1 and cord, second at tip of wing; veins pale yellow, darker in clouded areas. Venation: Sc1 ending at one-fourth to one-third length of Rs, Sc2 not evident; Rs relatively short, only about half length of R2+3; M3 lying free by atrophy of its basal connection and m-m, basal section of CuA1 proximad of fork of M. Halter 0.4 mm long, pale yellow with knob weakly darkened.

Abdomen (fig. 9). Tergites and sternites brownish black with posterior parts brownish yellow. Hairs on abdomen white.

Hypopygium (figs. 13–15). Posterior margin of tergite nine with deep V-shaped notch, lobes broadly rounded. Gonocoxite with a single simple ventromesal lobe. Clasper of gonostylus arched at 2/3 length, suddenly narrowed to apical spine. Lobe of gonostylus moderate-sized; rostral prolongation small with two slender spines arising from commom tubercle. Paramere with mesoapical lobe curved, tip acute.

Female. Unknown.

Specimens examined. Holotype male ( USNM), China: Sichuan, Mt. Omei, 1931. VII. 17, Geo. M. Franck. The head, one wing, three legs and hypopygium are mounted on a similarly labeled microscope slide. The remaining three legs are still attached to the body. The other wing is absent. Other material: 1 male ( CAU), China: Sichuan, Mt. Omei, 1998. VIII. 10, Ding Yang.

Distribution. China (Sichuan).

Remarks. For description and illustration of this species, also see Alexander (1933b). M3 is connected to CuA1 on the original illustration ( Alexander 1933b, plate 1, fig. 15), whereas it is lying free by atrophy of its basal connection and crossvein m-m (fig. 12).

Figures

FIGURES 9 – 12. Rhipidia (Eurhipidia) garruloides (Alexander, 1933). 9: Habitus of male, lateral view; 10: Head of male; 11: Wing; 12: Wing (holotype). Scale bar: 9 = 2.0 mm; 10 = 0.5 mm; 11 = 1.0 mm; 12 = 1. 0 mm.

FIGURES 13 – 15. Rhipidia (Eurhipidia) garruloides (Alexander, 1933). 13: Hypopygium, lateral view; 14: Hypopygium, dorsal view; 15: Hypopygium, ventral view. Scale bar: 13 – 15 = 0.2 mm.