Parakiefferiella tamatriangulata Sasa,1981

Liu, Wenbin, Sun, Bingjiao, Yan, Chuncai, Song, Chao & Wang, Xinhua, 2015, Two new species and one new record of Parakiefferiella Thienemann, 1936 from China (Diptera, Chironomidae), ZooKeys 545, pp. 139-148 : 145

Taxon classification Animalia Diptera Chironomidae

Parakiefferiella tamatriangulata Sasa,1981

Parakiefferiella tamatriangulata Sasa, 1981: 94; Sasa and Arakawa 1994: 99.

Specimens examined.

1 ♂, Liaoning Province, Dandong City, Fengcheng County, 40°51'00"N, 124°07'00"E, 25.iv. 1992, Sweeping net, Wang JC.

Diagnostic characters.

Total length 2.06-2.29 mm. Wing length 1.02-1.37 mm. AR 0.38-0.53. Anal lobe reduced. Laterosernite IX with five setae. Phallapodeme 36-38 μm long. Transverse sternapodeme 74-81 μm long. Anal point small, triangular and with pointed apex, bare and hyaline excepting the basal portion with microtrichia. Inferior volsella semicircular, bearing dorsal setae. Gonostylus 6 μm long, narrowed apically, distinctly bent and curved inward in dorsal view. Megaseta 10 μm long. HR 2.18. HV 1.56.

Remarks.

The Chinese specimens mainly agree with the original description by Sasa (1981), but they have higher AR (0.53) than the specimens from Japan (0.38-0.48).

Distribution.

China (Palaearctic China: Liaoning Province), Japan.