Chironomus fujitertius Sasa, 1985Placed as synonym of C. nipponensis (misidentification) (see below). In BOLD Bin: BOLD:ACQ7612 Adult: Information from Sasa 1985(b) supplemented by Sasa & Suzuki 1999. Wing length 2.25-4.84 mm; VR abt 1-1.09; 32-40 setae in squamal fringe. Body yellow with brown markings, scutal stripes reddish brown, scutellum yellow, postnotum brown. Abdominal markings as in figure below. Legs with femora largely yellow with a narrow apical dark ring, tibiae with a narrow apical and basal dark rings, tarsi 1-4 with apical dark band, Ta5 largely brown. Head: AR 3.19-4.11; frontal tubercles abt 26 µm long and 11 µm wide. 22-56 clypeal setae. Thoracic setae: Acrostichal 22 (12-28); Dorsolateral 25 (20-36); Pre-alar 7-8; Scutellar 30 (26-41) in double or triple rows. Legs: LRf 1.43-1.81; BR 2.6-5.4; LRm 0.58-0.62; LRh 0.70-0.80. Ninth tergite with about 9 long central setae, not arising from defined pale areas (as in figure above); anal point with consipuously darkened ridges. The Superior volsella resembles that of C. cingulatus, so type E(g) of Strenzke (1959); setae of Inferior volsella not shown as forked. Gonostylus widest at about basal third, narrowing relatively sharply over posterior third. Female: not described Pupa, Larva and Cytology not described. Found: Type locality - Japan: Lake Kawaguchi (35.59°N, 136.79°E) and Lake Motosu (35.77°N, 138.88°E) Yamanashi Prefecture; Kechi Dam, Tsushima Island (34.42°N, 120.33°E) Nagasaki Prefecture. This species was incorrectly considered as a synonym of C. nipponensis, but subsequent study indicated that, as the "lowland form" of that species, it was a valid species (Yamamoto et al. pers. comm.). There was a suggestion that this may be a synonym of C. cingulatus, however the molecular data of Kondo et al. (2016) indicates a clear interspecific difference in the BARCODE sequences of the two species. |