Amiota (Amiota) paraspinata 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 : 297-298

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

( Figure 19 )

Diagnosis. Vertical lobe of gonopod sclerotized, with two acute, much-sclerotized processes laterally ( Figure 19C ).

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 five or six long setae postero-ventrally; hind tibia with 10 setae ventrally.

Male terminalia. Epandrium entirely separated laterally at mid-dorsal portion, with ca 17– 18 setae near posterior to ventral margins ( Figure 19A ). Surstylus slightly pubescent on medial surface, not expanded at postero-ventral corner, with ca six longer prensisetae on distal margin, and several thin setae on lateral margin and inner surface. Anterior portion of hypandrium entirely thin ( Figure 19C ). Parameres separated from each other, lobe-shaped, each with apical, strongly sclerotized, pointed and lateral, less-sclerotized processes and ca six sensilla on medial mesal surface ( Figure 19D ). Aedeagus separated into one pair of small rods, each fused to base of paramere; outer membrane undeveloped ( Figure 19E, D ). Ejaculatory apodeme: apical plate with ca three pits on each lateral margin; stalk thick, long ( Figure 19F ).

Measurements. BL 52.82 mm in holotype (5 „ paratypes: 2.63–3.10); ThL 51.14 mm (1.00–1.23); WL 52.38 mm (2.18–2.45); WW 51.05 mm (1.00–1.18).

Indices. arb55/4 (4–5/2–4), avd50.50 (0.50–0.56), adf51.50 (1.50–1.80), flw51.80 (1.60–1.90), FW/HW50.35 (0.35), ch/ o50.05 (0.05), prorb51.00 (1.00), rcorb50.75 (0.60–0.80), vb50.35 (0.35–0.40), dcl50.55 (0.55), presctl50.60 (0.60–0.65), sctl51.10 (1.10–1.20), sterno50.90 (0.90–0.95), orbito51.80 (1.60–1.80), dcp50.23 (0.23–0.25), sctlp51.00 (1.00), C51.93 (2.04–2.39), 4c51.50 (1.28–1.59), 4v52.56 (2.53–2.82), 5x51.10 (1.10–1.38), ac53.86 (2.83–4.50), M50.61 (0.45–0.72), C3F50.61 (0.59–0.67).

HOLOTYPE: „, Yunnan: Mt Jizu , 17 August 2000, H.-W. Chen leg ( KIZ).

PARATYPES: 10 „, same data as the holotype except for 17 and 18 August 2000, L.-P. He, J.-G. Xiangyu, H. Takamori, H. Watabe and H.-W. Chen, leg. ( KIZ, DBSU and SEHU); 20 „, Yunnan: Bamboo Temple, 31 July , 4 August 2000 , 5 May, 15 July 2002, J.-J. Gao and H.-W. Chen leg. ( KIZ, DBSU and SEHU) .

Distribution. China (Yunnan).

Relationship. This species resembles A. (A.) spinata in having the vertical lobe of gonopod with sclerotized, pointed process, but differs from it by the vertical lobe of gonopod with two acute processes (with four acute processes in spinata ).

Etymology. In reference to a close relationship to A. (A.) spinata .

Figures

Figure 19. Amiota (Amiota) paraspinata Chen and Watabe, sp. nov. „ (see Figure 12 for further explanation).