Amiota (Amiota) jizushanensis Chen and Watabe, 2005

Chen, Hong-Wei, Watabe, Hide-Aki, Gao, Jian-Jun, Takamori, Hisaki, Zhang, Ya-Ping & Aotsuka, Tadashi, 2005, Species diversity of the subgenus Amiota (s. str.) Loew, 1862 (Diptera, Drosophilidae) in southern China, Journal of Natural History 39 (3), pp. 265-310 : 291-292

Amiota (Amiota) jizushanensis Chen and Watabe , sp. nov.

( Figure 15 )

Diagnosis. Vertical lobe of gonopod less sclerotized with two thin, apical processes ( Figure 15C ); aedeagus less sclerotized, partly fused to paramere ( Figure 15D ).

Description

Wing. Wing with ca 21–22 minute, peg-like spinules on ventral surface of costal vein between R 2+3 and R 4+5.

Leg. Hind femur with six long setae postero-ventrally; hind tibia with eight setae ventrally.

Male terminalia. Epandrium entirely separated laterally at mid-dorsal portion, with 11–12 setae near posterior to ventral margins ( Figure 15A ). Surstylus glabrous on medial mesal surface, not expanded at postero-ventral corner, with five prensisetae on distal margin, and several thin setae on outer and inner surface ( Figure 15B ). Anterior portion of hypandrium entirely thin ( Figure 15C ). Parameres separated from each other, lobe-shaped, each with apically, much-sclerotized, pointed and laterally, less-sclerotized processes, and ca eight sensilla on medial surface. Aedeagus separated into one pair of small rods, each fused to base of paramere; outer membrane undeveloped ( Figure 15D, E ). Ejaculatory apodeme: apical plate with ca three pits on each lateral margin; stalk thick, long ( Figure 15F ).

Measurements. BL53.00 mm; ThL 51.26 mm; WL 52.60 mm; WW 51.13 mm.

Indices. arb54/4, avd50.25, adf51.20, flw51.10, FW/HW50.35, ch/ o50.06, prorb51.00, rcorb50.65, vb50.40, dcl50.60, presctl50.70, sctl51.10, sterno50.90, orbito52.20, dcp50.23, sctlp51.10, C51.93, 4c51.67,4v52.72, 5x51.20,ac53.75, M50.67, C3F50.63.

HOLOTYPE: „, Yunnan: Mt Jizu , 18 August 2000, H.-W. Chen leg. ( KIZ).

Distribution. China (Yunnan).

Relationship. This species resembles A. (A.) watabei in the shape of paramere and aedeagus, but can be easily distinguished from it by the vertical lobe of gonopod with two thin, apical processes (with one apical process in watabei ).

Etymology. In reference to the type locality.

Figures

Figure 15. Amiota (Amiota) jizushanensis Chen and Watabe, sp. nov. „ (see Figure 12 for further explanation).