Atrichops crassipes
Taxonomy
This page represents the following TreeOfLife-200M taxonomic path.[1]
- Kingdom: Animalia
- Phylum: Arthropoda
- Class: Insecta
- Order: Diptera
- Family: Athericidae
- Genus: Atrichops
- Species: Atrichops crassipes
Visual Description
Atrichops crassipes, commonly known as the least water-snipefly, is a small, slender fly.[2] Observations from the TreeOfLife-200M dataset indicate that the species exhibits a characteristic dipteran body plan with distinct wings and segmented legs.[1]
Morphology and Identification
Atrichops crassipes (Meigen, 1820) is a distinct species within the family Athericidae, separated from related species such as Atherix ibis and Atherix marginata by its smaller and more slender build.[3]
Key diagnostic features for adults include:
- Head: The genae are glabrous, lacking the subocular pilosity found in Atherix species.
- Thorax: The base of the fore coxa is covered laterally by a sclerite bearing a strong anterior denticulation.
- Wings: Veins R4 and R5 are nearly straight and parallel in their distal portion.
- Genitalia: In males, the dististyle is articulated at approximately three-quarters the length of the basistyle. In females, the base of the cerci is not clearly separated from the very narrow 10th hemi-tergites.
Ecology and Distribution
The species is found in the south of France, particularly in the Pyrenees, where adults are typically observed near shaded watercourses. Larvae are aquatic.
Gallery
References
- 1 2 Dataset view for Animalia / Arthropoda / Insecta / Diptera / Athericidae / Atrichops / crassipes constructed from imageomics/TreeOfLife-200M records under this taxonomic path. Hugging Face Datasets. https://huggingface.co/datasets/imageomics/TreeOfLife-200M.
- ↑ Atrichops crassipes (Meigen, 1820). GBIF. https://www.gbif.org/species/1501358. Accessed 2026-07-14.
- ↑ A. G.B. Thomas. Diptères torrenticoles peu connus : I. — Les athericidae (larves et imagos) du sud de la France [Brachycera, Orthorrhapha]. Annales de Limnologie - International Journal of Limnology. 1974. https://doi.org/10.1051/limn/1974001.