A new host for two Cerodontha species has been discovered

An article* informs that collected leaf mines on Dactylis glomerata resulted in two species been successfully reared; Cerodontha (Poemyza) hammi Spencer, 1971 and Cerodontha (Poemyza) pygmella (Hendel, 1931). Both were previously not known to utilise Dactylis as a host.

The mines consisted of an elongated, whitish, blotch which filled the distal half of the leaf blade. There was no notable differences between the two species mines.

The rearing of Cerodontha (P.) pygmella represents the first known record of this species in Yorkshire.

*Warrington, B. P. 2023. A new host genus for the leaf-mining flies Cerodontha (Poemyza) hammi Spencer and Cerodontha (Poemyza) pygmella (Hendel) (Diptera: Agromyzidae). British Journal of Entomology and Natural History 36 (4): 251-252.
30 December 2023