Table 4. Main differences between S in Taxonomic study on the genus Stenochironomus Kieffer from the Baishanzu Nature Reserve, China (Diptera, Chironomidae)

Table 4. Main differences between S. annulus sp. nov., S. baishanzuensis sp. nov., S. gibbus, and S. xianjuensis.
Thorax vittaeAnal pointLegs patternS. annulusMedian vittae not obvious; lateral vittae with stripe pigmentationAnal point straight and parallel-sidedWith dark annulus on femur of P2 and P3S. baishanzuensisMedian vittae with little pigmentation; lateral vittae with stripe pigmentationAnal point straight and parallel-sidedEntire femur of P2 pale; femur of P3 brownS. gibbusThorax without pigmentationApex parallel-sided to slightly bulbousNearly 1/2 to entire femur of P2; basal 0.12-0.30 femur of P3 dark brown;S. xianjuensisThorax without median vittae; lateral vittae with stripe pigmentationApex of anal point swollen and roundedApical 1/4 of P2 and P3 brown