Parallelomma
General description:
There is controversy over whether or not P. paridis and P. vittatum are distinct species. Collin (1958)[1] separated the two species (placed in the genus Americina Malloch) and they were listed so in Kloet & Hincks (1976)[2] (in Parallelomma). Šifner (1978)[3] synonymised P. paridis, but this was not accepted by Gorodkov (1986)[4] and the species was reinstated by Nelson (1990)[5], but Šifner (1995)[6] reaffirmed the synonymy. Chandler (1998)[7] accepts Nelson's interpretation, which is followed here. Nelson (1990)[5] showed that the biology of the two are different, but that they show little morphological distinction although the characters given by Collin served to reliably separate his reared adults.
References
- , 1958. A short synopsis of the British Scatophagidae (Diptera). Transactions of the Society for British Entomology, 13, pp.37-56.
- , 1979. A chek list of British Insects. Part 5: Diptera and Siphonaptera. Handbooks for the Identification of British Insects, 11 (1), pp.1-139.
- , 1978. La révision synonymique des espèces du genre Americana Malloch, 1923 (Diptera, Scatophagidae). Dipterologica Bohemoslovaca, 1, pp.283-302.
- , 1986. Family Scathophagidae. In Catalogue of Palaearctic DipteraCatalogue of Palaearctic Diptera. Catalogue of Palaearctic DipteraCatalogue of Palaearctic Diptera. 1986. pp. 11-41.
- , 1990. Observations on the biology and status of British dung-flies of the genus Parallelomma Becker (Dipt., Scathophagidae). Entomologist's monthly Magazine, 126, pp.187-189.
- , 1995. Additions to the catalogue of flies of the Palaearctic region (Diptera, Scatophagidae). European Journal of Entomology, 92, pp.513-515.
- , 1998. Checklist of Insects of the British Isles (New Series) Part 1: Diptera. Handbooks for the Identification of British Insects, 12, pp.1-234.