This page represents the following TreeOfLife-200M taxonomic path.[1]
Based on observations from the TreeOfLife-200M dataset, members of the genus Anastomyza exhibit typical dipteran morphology.[1] Diagnostic morphological characteristics for the genus include the presence of three dorsocentral setae on the thorax and thickened costal veins in the proximal part of the subcostal break.[2]
In the La Araucanía Region of Chile, flies of the genus Anastomyza have been identified as part of a multitrophic association involving the host tree Nothofagus alpina and the biotrophic parasitic fungus Cyttaria espinosae.[2]
Anastomyza larvae develop within the stromata of C. espinosae. Field observations indicate that these flies are significantly more abundant in association with mature, open stromata (where apothecia are exposed) compared to immature, closed stromata. In one study, Anastomyza represented approximately 88% of the total insects collected from mature, open stromata.[2]
It is hypothesized that Anastomyza flies are mycophagous, consuming the fungal stroma during their larval stage. As adults, they return to the stromata, where they may contribute to the dispersal of C. espinosae spores or associated microorganisms, such as yeasts, which are present in the open stromata and may produce volatile compounds that attract the flies.[2]