Say-1829
Guides
Copestylum posticum
Copestylum posticum is a syrphid fly (family Syrphidae) described by Thomas Say in 1829. The species is documented from 39 observations on iNaturalist, indicating it is recognized in field records though detailed biological information appears limited in publicly available sources. As a member of the genus Copestylum, it belongs to a group of hoverflies commonly known as bromeliad flies, with many species in this genus exhibiting associations with bromeliad plants. The specific epithet 'posticum' (Latin for 'posterior' or 'behind') may refer to a morphological feature, though this is not confirmed in available sources.
Copestylum violaceum
purple bromeliad fly
Copestylum violaceum, commonly known as the purple bromeliad fly, is a species of syrphid fly in the family Syrphidae. The species is associated with bromeliad plants, as indicated by its common name. It belongs to a diverse genus of hoverflies found primarily in the Americas. The species was first described by Thomas Say in 1829.
Leia bivittata
fungus gnat
Leia bivittata is a species of fungus gnat in the family Mycetophilidae, first described by Thomas Say in 1829. It belongs to the genus Leia, a group of small flies commonly associated with decaying organic matter and fungal habitats. The species epithet "bivittata" refers to two longitudinal stripes or bands, likely describing a distinctive color pattern on the body or wings. Like other members of Mycetophilidae, the larvae are presumed to develop in moist, decomposing substrates.