Amiota (Amiota) ailaoshanensis 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 : 287-288

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

( Figure 12 )

Diagnosis. Vertical lobe of gonopod heavily sclerotized with a thick, apical process ( Figure 12C ); apical processes of paramere slender, slightly asymmetrical, right part shorter than left one ( Figure 12D ).

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

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 Ailao , 22 June 2001, H. Watabe leg. ( KIZ).

Distribution. China (Yunnan).

Relationship. This species resembles A. (A.) cuii in having the much-sclerotized vertical lobe of gonopod, but is distinguishable from it by the vertical lobe of gonopod with apical process (vertical lobe of gonopod without apical process in cuii ).

Etymology. In reference to the type locality.

Figures

Figure 12. Amiota (Amiota) ailaoshanensis Chen and Watabe, sp. nov. „. (A) Epandrium and cercus, lateral view; (B) surstylus and tenth sternite, lateral view; (C) hypandrium and gonopod, ventral view; (D) parameres, aedeagus and aedeagal apodeme, ventral view; (E) aedeagal apodeme, lateral view; (F) ejaculatory apodeme. Scale bars: 0.1 mm.