This page represents the following TreeOfLife-200M taxonomic path.[1]
Based on observations from the TreeOfLife-200M dataset, Apystomyia specimens exhibit a slender, fly-like body form characteristic of many Brachycera. The thorax and abdomen are distinct, with the abdomen showing a segmented structure. The wings are clear and membranous, with a venation pattern typical of the group. The head features prominent compound eyes that occupy a significant portion of the dorsal surface.[1]
The family Apystomyiidae, represented by the genus Apystomyia, is identified as the sister group to the Cyclorrhapha, a major clade of Diptera that includes the house fly and Drosophila [2]. The North American species Apystomyia elinguis is considered a relict species in this phylogenetic context [2]. Phylogenetic analysis places Apystomyiidae within the Brachycera, specifically as part of the lineage leading toward the Eremoneura and subsequent cyclorrhaphan radiations [2].