Identification: Head: Eyes large in relation to head; Arista with distinct white pubescence. Occiput & frons extensively yellow Thorax: Yellow. Wings hyaline with darkened tips Legs: Femorae yellow with feint bands
Collin, 1944: This is the most extensively yellow, and most delicate looking species. It approaches C. annulipes in having indications of dark bands, at least on hind femora, but in addition to being a less black insect, has a more distinctly pubescent arista. [figures in Iwasa 1989]
Key: Bygebjerg, R., Munk, T., & Elnif, J. (2011). Chyliza leguminicola Melander, 1920 (Diptera: Psilidae) new to the Palaearctic fauna. Entomologiske Meddelelser, 79(2), 73–84.
The larvae are said to make galleries in roots of Neottia nidus-avis (illustrated in Greve, L. (2009). Fluen og orkidéen. Insekt-Nytt, 34(3), 27–31.)
Records include heathland, fenland, sand dunes and broad-leaved woodland. The presence of orchids is probably the over-riding factor and the species has been found abundantly on orchids growing in shaded conditions