Kaszab Zoltán (szerk.): A Magyar Természettudományi Múzeum évkönyve 69. (Budapest 1977)

Mihályi, F.: A new key for Hungarian Lucilia species (Diptera, Calliphoridae)

A New Key for Hungarian Lucilia Species (Diptera, Calliphoridae) by F. MIHÁLYI, Budapest Abstract — New key is given for both sexes of the 9 Hungarian Lucilia species, including descriptions of hitherto unknown females of Lucilia pilosiventris KRAMER and L. renalis (MEIGEN). With 5 figures. The researches in our century to clear the role of flies in the transmission of enteric diseases proved to be prominent, among the synanthropic flies especially those concerning the Lucilia species. Consequently, the identification of these species became indispensable. No reliable key exists owing to the insufficient knowledge of the taxonomy of this group. Three of the nine species living in most of Europe have been described in this century, and of two species the females were till now still unknown. STEIN (1924) gave a key for the males of the 7 species, known to him. SÉGUY (1928) knew the males of all 9 species, accordingly his keys were based mainly on males, therefore even L. caesar cannot be reliably identified by them. It is the merit of SPENGE (1954) to clear the identity of most of the females by rearing. ZUMPT(1956) compiled in his monograph all the results known to that date, but did not know the females of the two rare species : L. pilosiventris KRAMER and L.regalis (MEIGEN), and even the other species could not be well named unless they were males. EMDEN (1954) included in his key also the females, except of the two rare ones, probably not occurring in Great Britain. GRUNIN (1970) made a key to the males only. LEHRER (1972) who gave a key also for the females did not know the females of L. pilosiventris and L. regalis. Since the Hungarian Natural History Museum has a rich material of all Lucilia species I tried to find new diagnostic characters for both sexes with a view to construct a key for them. It is interesting to note that some good distinguishing characters have been overlooked until now. Thus the costal spine of L. pilosiventris, the striking difference in the occipital hairing of L ampullacea and IJ. illustris, the strong discal bristles on the 5th tergite of L. pilosiventris and L. regalis. By completing the so far used characters with the new ones, all Lucilia species, if not all specimens, can surely- and without great difficulty be named. Although the key is based on various characters a part of the males should always be examined for genitalia (cf. SÉGUY, ZUMPT, LEHRER, etc.) too, in order to confirm identification. Key for the Hungarian Lucilia species 1 (16) Basicosta black or dark brown. 2 (3) 3 ac behind suture. 2 strong upright marginals in middle of third tergite. Frons of male narrow, hardly broader than ocellar triangle, 1/3-1/2 occupied by interfrontalia. Palpi brown with black tip. Surstyli of males narrow, their breadth about 1/6 of its length, tapering from middle to tip. Frons of female about 1/3 of head's breadth. —Very common in Hungary silvarum (MEIGEN, 1826) Çrf 3 (2) Usually 2 ac behind suture. 4 (5) 2 strong marginals on third tergite. Surstyli of males 1/4 as wide as its length, nearly parallel sided. Female very similar to L. silvarum, but