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.