Alotanypus aris (Roback, 1971) is a species of non-biting midge in the family Chironomidae. It was originally described as Macropelopia aris by S.S. Roback in 1971 [1].
This page represents the following TreeOfLife-200M taxonomic path.[2]
Based on observations from the TreeOfLife-200M dataset, Alotanypus aris exhibits the characteristic slender, delicate body form typical of the family Chironomidae [2]. The specimens display long, thin legs and elongated wings that extend beyond the posterior end of the abdomen. The coloration is generally muted, featuring shades of brown and grey, which provides camouflage in their natural environments [2].
Alotanypus aris belongs to the tribe Macropelopiini within the subfamily Tanypodinae [3]. The species is known from the Nearctic Region [3].
The pupal stage of A. aris is characterized by a thoracic horn with an extremely sinuate respiratory atrium, a diagnostic feature shared with related species such as A. kuroberobustus and A. dalyupensis [3]. Larvae of the genus Alotanypus have been documented inhabiting highly acidic waters (pH 3.9–4.0) in the Nearctic Region [3].