Amiota ( Amiota ) asymmetrica Chen and Takamori, 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 : 283-285

publication ID	https://doi.org/10.1080/00222930310001657883
persistent identifier	https://treatment.plazi.org/id/ED02879B-A068-7A56-670F-FF536AD4FA46
treatment provided by	Carolina
scientific name	Amiota ( Amiota ) asymmetrica Chen and Takamori
status	sp. nov.

Treatment

Amiota ( Amiota) asymmetrica Chen and Takamori View in CoL , sp. nov.

( Figure 9 View Figure 9 )

Diagnosis. Paramere and aedeagus asymmetrical laterally; paramere with three to five long sensilla submedially, its right part shorter than left part; aedeagus much sclerotized, left part very small ( Figure 9D, E View Figure 9 ).

Description

Wing. Wing with ca 18–20 minute, peg-like spinules on ventral surface of costal vein between R 2+3 and R 4+5.

Leg. Leg yellow. Hind tibia apico-dorsally and first tarsomere dorsally nearly straight.

Male terminalia. Epandrium constricted heavily, with ca 20 setae near posterior to ventral margins ( Figure 9A View Figure 9 ). Surstylus lacking pubescence, with several setae on distal surface, finger-like process at postero-ventral corner, ca 9–10 long prensisetae on distal margin, and a few stout, spine-like setae on inner surface ( Figure 9B View Figure 9 ). Anterior portion of hypandrium slightly broadened at middle ( Figure 9C View Figure 9 ). Paramere and aedeagus asymmetrical, basally fused to each other ( Figure 9D, E View Figure 9 ). Vertical lobe of gonopod less sclerotized, roundish apically ( Figure 9C View Figure 9 ). Outer membrane of aedeagus undeveloped. Ejaculatory apodeme: apical plate with ca three pits on each lateral margin; stalk thick, long ( Figure 9F View Figure 9 ).

Measurements. BL 52.65 mm in holotype (2 „ paratypes: 2.77–2.80); ThL 51.10 mm (1.13–1.25); WL 52.28 mm (2.30–2.67); WW51.00 mm (1.13–1.25).

Indices. arb54–5/3 (5/3), avd50.60 (0.50–0.60), adf51.20 (1.10–1.20), flw51.40 (1.30– 1.40), FW/HW50.35 (0.35), ch/ o50.07 (0.07), prorb51.10, rcorb50.60 (0.60), vb50.30 (0.30–0.35), dcl50.60 (0.60), presctl50.65 (0.65), sctl51.10 (1.10), sterno50.95 (1.00), orbito52.00 (2.20–2.30), dcp50.28 (0.25–0.28), sctlp51.20 (1.20), C52.00 (1.93–2.03), 4c51.44 (1.50–1.61), 4v52.50 (2.75–2.78), 5x51.20 (1.20–1.36), ac53.71 (3.63–3.75), M50.67 (0.67–0.75), C3F50.68 (0.59–0.61).

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

PARATYPES: Yunnan: 2 „, Lake Lugu , 23 July 2001, J.-J. Gao leg. ( DBSU and SEHU); 1 „, Bamboo Temple, Kunming, 3 May 2002, J.-J. Gao leg. ( KIZ) .

Distribution. China ( Yunnan).

Relationship. This species is somewhat similar to A. ( A.) taurusata in having the hind femur with small, lobe-like flap baso-ventrally, but can be distinguished from it by the hind tibia apico-dorsally and first tarsomere dorsally nearly straight (hind tibia apico-dorsally and first tarsomere dorsally extended in taurusata ).

Etymology. Referring to the asymmetric aedeagus.

Amiota ( Amiota) femorata Chen and Takamori , sp. nov.

( Figure 10 View Figure 10 )

Diagnosis. Parameres cruciate each other, lacking sensilla, sclerotized only at apical portion

( Figure 10C, D View Figure 10 ); aedeagus straight, strongly sclerotized, basally with a process ( Figure 10D View Figure 10 ).

Description

Wing. Wing with ca 18–20 minute, peg-like spinules on ventral surface of costal vein between R 2+3 and R 4+5.

Leg. Leg yellow; all femora dark brown. Hind femur curved basally; hind tibia apicodorsally and first tarsomere dorsally nearly straight.

Male terminalia. Epandrium entirely separated laterally at mid-dorsal portion, with ca 20 setae near posterior to ventral margins ( Figure 10A View Figure 10 ). Surstylus glabrous, with several setae on distal surface, finger-like process at postero-ventral corner, ca 9–10 prensisetae on distal margin, and a few stout, spine-like setae on inner surface ( Figure 10B View Figure 10 ). Anterior portion of hypandrium slightly broadened at middle ( Figure 10C View Figure 10 ). Paramere and aedeagus basally fused to each other ( Figure 10D View Figure 10 ). Vertical lobe of gonopod weakly sclerotized, triangle-shaped ( Figure 10C, D View Figure 10 ). Outer membrane of aedeagus undeveloped. Ejaculatory apodeme: apical plate with ca four or five pits on each lateral margin; stalk thick ( Figure 10E View Figure 10 ).

Measurements. BL 53.07 mm in holotype (1 „ paratype: 3.10); ThL 51.25 mm (1.25); WL 52.60 mm (2.67); WW 51.10 mm (1.20).

Indices. arb54–5/3–4 (4–5/3–4), avd50.65 (0.65), adf51.20 (1.10), flw51.20 (1.30), FW/ HW50.35 (0.35), ch/ o50.06 (0.06), prorb51.05 (1.10), rcorb50.60 (0.65), vb50.30 (0.35), dcl50.55 (0.55), presctl50.60 (0.60), sctl51.10 (1.10), sterno50.95 (0.95), orbito51.80 (1.70), dcp50.28 (0.25–0.28), sctlp51.20 (1.20), C52.40 (2.43), 4c51.25 (1.28), 4v52.50 (2.50), 5x51.25 (1.25), ac54.17 (4.05), M50.75 (0.70), C3F50.71 (0.76).

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

PARATYPES: 1 „, same data as the holotype ( KIZ); 3 „, Hunan: Mt Badagong , 1–8 September 2000, Y.-G. Hu, M. Nozawa and H. Takamori leg. ( DBSU and SEHU) .

Distribution. China ( Hunan, Yunnan).

Relationship. This species is similar to A. ( A.) sacculipes in having the dark brown femora, but can be distinguished from it by the paramere lacking sensillum and by the aedeagus basally with a process (paramere subbasally with three or four long sensilla and aedeagus basally with a process in sacculipes).

Etymology. Referring to the curved hind femur.