Matskási István (szerk.): A Magyar Természettudományi Múzeum évkönyve 97. (Budapest 2005)

Papp, L.: New species of Lygistorrhinidae (Diptera) from the Oriental Region

genital parts in fixed position, e.g. in the broadest view of the apical half of gonostylus, as I did with Fig. 4. One can, actually, find a number of strong synapomorphies in the male genitalia of the lygistorrhinid species. Based also on all the correct analytical studies, which GRIMALDI & BLAGODEROV's (2001) have published recently, monophyly of the group (family) is strongly corroborated. On the other hand, I do not think, that superficial comparisons, even if character states are treated by "cladistic" softwares, without capturing reliable data on the characters of the male genitalia of the Sciaroidea groups, would be authoritative as to the true evolutionary relationships of the family. For the time being, I think, an assumption that Lygistorrhinidae is a sister-group of the family Mycetophilidae s. str. is still a good starting point for further studies. Together with the three species described below, eight species of three genera of Lygistorrhinidae are known from the Oriental region {Loyugesa 1, Lygistorrhina 4, Matileola 3). However, it seems premature to give estimation for the number of species in this region. Just in the Diptera Collection of the HNHM, there are two Lygistorrhina specimens (seriously damaged, abdomen lost) from Vietnam and Thailand, which must belong to two undescribed species, based on their wing pattern. The specimens, including the types are preserved in the following institutions: Department of Zoology, Hungarian Natural History Museum, Budapest (HNHM), National Museum of Natural Science, Taichung (NMNS), and Taiwan Forestry Research Institute, Taipei (TFRI). Lygistorrhina chaoi L. PAPP, 2002 (Figs 1-4) Material examined - 6 males (HNHM, TFRI): Taiwan, Kaohsiung Hsien, Liukuei, Shan-Ping LTER Site, UV light traps, No. 14, 31.03-04.04. 2003, M. FÖLDVÁRI & L. PAPP; 2 males: TAIWAN: Ilan Hsien, Fu-Shan LTER Site, March 26, 2003, along /over a small river, No. 4, leg. L. PAPP. Remarks - Formerly, only its holotype was known from Taiwan. The genitalia fi gures in the original description (PAPP 2002: Figs 2—3) are rather good, il one takes into consideration that those figures were made in situ, i.e. without preparing the holotype. Its gonostylus is really long with a medial apical tooth and without sub-basal long ventral seta, tergite 9 is with dense black setae apically, etc. Now abdomen of one of the newly collected males was prepared and postabdominal and genital parts are depicted in four figures.