© Entomologica Fennica. 15 December 2010 Egg morphology of Mydaea Iateritia (Rondani, 1866) (Diptera: Muscidae) Andrzej Grzywacz & Thomas Pape Grzywacz, A. & Pape, T. 2010: Egg morphology ofMydaea lateritia (Rondani, 1866) (Diptera: Muscidae). — Entomol. Fennica 21: 187—192. Several specimens of Mydaea lateritia (Rondani, 1866) were collected during studies ofarthropod succession on pig carrions in western Poland. This is the first record of this species in Poland and the northernmost occurrence of the species. Scanning electron microscopy documentation ofegg morphology ofM. lateritia is presented for the first time. Hexagonal chorionic network, foliate hatching pleats, short lateral respiratory horns, dorsomedian flange and median area with smooth hexagonal network and craters are described. The egg could be classified as Mydaea-type with short respiratory horns. A. Grzywacz, Department ofAnimal Ecology, Institute ofEcology and Environ— mental Protection, Nicolaus Copernicus University, Gagarina 9, 87—100 Torun, Poland; E—mail.‘ hydrotaea@gmail. com T. Pape, ZoologicalMuseum, University ofCopenhagen, Universitetsparken I5, 2100 Copenhagen, Denmark; E—mail.‘
[email protected] Received 3 February 2010, accepted 14 April 2010 1. Introduction foliaceous hatching pleats are known as Phaonia- type or ‘simple flanged type’, and those without The genus Mydaea Robineau-Desvoidy, 1830 such hatching pleats are known as Musca-type or currently contains 108 species (Bisby et al. ‘unflanged type’ (Hinton 1960, Skidmore 1985, 2009). Of these, 20 are recorded as occurring in Ferrar 1987). Eggs of most Mydaeinae genera Europe (Pont 2004) and 10 in Poland (Draber— and some Coenosiinae (Limnoplzora Robineau- Monko 2007). Mydaea lateritia (Rondani, 1866) Desvoidy and Lispe Latreille of the Limo- was originally described from Italy, and for al- phorini) are classified as a modification of the most a century it was known only from Italy and Phaonia-type, with elongated hatching pleats France (Hennig 1956).