Asiosphegina
Taxonomy
This page represents the following TreeOfLife-200M taxonomic path.[1]
- Kingdom: Animalia
- Phylum: Arthropoda
- Class: Insecta
- Order: Diptera
- Family: Syrphidae
- Genus: Asiosphegina
Visual Description
Asiosphegina is a subgenus of the genus Sphegina[2]. Morphological observations from the TreeOfLife-200M dataset indicate that these flies typically exhibit a slender, elongated body form characteristic of many Syrphidae, with a distinctively narrow petiolate abdomen.[1] The thorax and abdomen often display a combination of dark brown to black coloration, sometimes with lighter, yellowish or orange markings on the legs and basal abdominal segments.[1]
Morphology and Identification
The subgenus Asiosphegina is morphologically distinguished from the subgenus Sphegina (s. str.) by specific structural traits:
- Sternum I: This structure is narrow and lanceolate (several times as long as wide) or membranous, and is non-pilose, whereas it is quadratic to oval and pilose in Sphegina s. str.[2]
- Postmetacoxal bridge: This bridge is wide, with a dorsal margin that is almost straight, featuring at most a small subtriangular medial incision. In contrast, the bridge in Sphegina s. str. is narrow, arcuate, or possesses a large dorso-medial subtriangular incision.[2]
The Oriental fauna of Sphegina is highly diverse, with many species classified within Asiosphegina. Identification of these species, particularly for males, relies heavily on the morphology of the genitalia.[2]
Gallery
References
- 1 2 3 Dataset view for Animalia / Arthropoda / Insecta / Diptera / Syrphidae / Asiosphegina constructed from imageomics/TreeOfLife-200M records under this taxonomic path. Hugging Face Datasets. https://huggingface.co/datasets/imageomics/TreeOfLife-200M.
- 1 2 3 4 Jeroen van Steenis; Heikki Hippa; Valeri A. Mutin. Revision of the Oriental species of the genus Sphegina Meigen, 1822 (Diptera: Syrphidae). European Journal of Taxonomy. 2018. https://doi.org/10.5852/ejt.2018.489.