S. Mahunka szerk.: Folia Entomologica Hungarica 45/1. (Budapest, 1984)

cially by the investigation in the material collected by K.V. KROMBEIN, partly by Malaise-traps, in his regular collecting trips to Ceylon, Author is grateful for the possibility of the elaboration of these materials. The number of Oriental Mesitiinae species increased as follows: in 1974 one species, in 1975 two, in 1976 nine in 1977 eight, in 1979 six, in 1981 five and in 1982 three, altogether 34 new species were described. In 1983 there were 52 valid Oriental Mesitiinae species and with the 13 species described in this paper altogether 65 species are known in 6 genera.Since the sexual dimorphism is very strong and no ethological data are available the males and females belonging to the same species were identified only in a few cases on the basis of identical collecting sites and time. Probably some o and <? will be drawn together to be one species in the course of future research. The number of Oriental Mesitiinae species is higher than that of the Palearctis (only from the Euro-Turanian and the Mediterranean region 57 spp.) and the Ethiopian fauna territory (48 known species). DUDICH'

s (1942) classification is used for the characterization of the Zoogeographie al distribution of the species: I. Ethiopian fauna territory. - II. Madagascan fauna territory. - III. Oriental fauna territory: IIIj. East India fauna province (Southern part of Afghanistan, Pakistan, India except most Southern areas, Bangladesh); IILj. Ceylonese or Sri Lanka fauna province (South India, Sri Lanka); 1113. South-East India province (Burma, Thailand, Laos, Cambodia, Viet-Nam, Hong Kong, Taiwan); 1114. Sundas (Malaysia, Sumatra, Borneo, Jawa); III5. Celebes fauna province; Hlg. Philippines fauna province. IV. Holarctic fauna territory: IVj

. Nearctic fauna territory; IV

2

. Palearctic fauna territory (IV2

a

. Euro-Turanian region, Europe to River Ob and Kazakhstan except South Europe; IV2b-Mediterranean region (South Europe, North Africa, Turkey, Arabian peninsula to the Persian Bay, Iran to North Afghanistan). Later, in referring to distribution these Roman figures are used only. The distribution of species numbers showing the present status of elaboration of the fauna provinces is as follows: III

2 = 27 species, III3 = 16 species, IIIj = 8 species, Illg = 5 species, III4 = 4 species, III3 and III4 species common = 2 species, IIIj

, III2

, IV2b an<

^ Uli as well as III3 = each 1 common species, respectively. The following enumeration the known species are not described in detail as in monographs, because the marks given in the keys and differential diagnoses distinguish the Oriental species from similar ones living in other areas, too. Subfamily: Mesitiinae Kieffer, 1914 Mesitiini Kieffer, 1914: Das Tierreich 41: 288 Mesitinae Berland, 1928: Faune Fr. 19: 108 Mesitinae: Nagy 1969: Lucr.Sta. zool. marit. Agigea 3: 276 Mesitinae: Móczár 1970a: Acta zool.hung. 16: 176 Black, brown often partly red, yellowish, without metallic reflexion. Female often with short wings or apterous, venation weakly developed. Head elongated ( £ ) or rounded (o

1

), mandibles with 3-5 teeth, clypeus in the middle raised into a keel, antennae with 13 joints (0. o*). Pronotum with mostly distinct longitudinal furrow, remarkably divergent in posterior half and reaching tegulae with its narrowed extension. Mesonotum with more or less developed parapsidal furrows, with distinct notaulices, often also with longitudinal furrow medially. Mesonotum well separated from scutellum by a transverse groove and a pair of pits at its base laterally. Propodeum usually distinctly sculptured, with longer or shorter lateral spines posteriorly. Abdomen short, with 8 ( <j> ) or 7 ((?) segments, segment 2 always remarkably longer than the others, often characteristically punctured. From the about 175 Mesitinae of world 65 occurs in the Oriental territory. Type-genus: Mesitius Spinola. 1851 Key to all genera of World 1 Pronotum without distinct, completely developed longitudinal furrow. Lateral spines of propodeum sometimes extremely slender 2 - Pronotum with distinct at least partly developed longitudinal furrow (fig. 26) ... 4