Kaszab Zoltán (szerk.): A Magyar Természettudományi Múzeum évkönyve 75. (Budapest 1983)

Mineo, G.: Studies on the Scelionidae (Hymenoptera) XIX. A revision of the Ethiopian species of Gryon Haliday: the pubescens-group

ANNALES HISTORICO-NATURALES MUSEI NATIONALIS HUNGARICI Tomus 75. Budapest, 1983 p. 285-293. Studies on the Scelionidae (Hymenoptera) XIX. A revision of the Ethiopian species of Gryon Haliday: the pubescens-group by G. MINEO, Palermo Abstract —The pubescens-group of Gryon HALIDAY in the Ethiopian Region is revised. The so far known species are: Gryon kelnerpillaulti sp. n.. G. mirperusi (RISBEC), G. rugulosum (Fours), G. saxatile (KIEFFER) and G. scutidepressi sp.n. With 42 figures. In this work I begin to revise the genus Gryon HALIDAY with the species distributed in the Ethi­opian Region. This region is relatively rich in Gryon species although only a few species have so far been described by several authors (KLEFFER 1910; FOUTS 1934; NIXON 1934; RISBEC 1950, 1953, 1955, 1956, 1957, 1958; MINEO 1979). The greater part of the material discussed below, preserved in alcohol, has been sent to me for study by DR. F. BIN (Istituto Entomologia agraria, Perugia) and DR. L. MASNER (Biosystematics Research Institute, Ottawa). Other lots have been borrowed from the British Museum (Natural History) London (BMNH) and from the Museum National d'Histoire Naturelle, Paris. Abbreviations and symbols used throughout the paper: CNC — Canadian National Collection of Insects, Arachnids and Nematodes, Ottawa I. E. a. — Istituto Entomologia agraria. Palermo TMA — Természettudományi Múzeum Állattára, Budapest A = antennái joints ac = acetabular carina ios = interorbital space (sensu MASNER 1979) IXb = maximum longitudinal axis X maximum transversalaxis of a compound eye mc = marginal carina ms = malar space The PUBESCENS-group Diagnosis. As it has been mentioned in a previous paper (MINEO 1980), members of this group belong to Gryon pubescens (MOTSCHOULSKY). The species discussed below are morphologi­cally very close to each other as are the remaining species known to me from Australia, the Palaeartic and the Oriental Regions, excepting Gryon neglect urn MINEO, whose length ratio of the veins in the fore wing is different. In fact, they have even similar habitus including the fore and hind wings ; postmarginalis about twice longer than stigmalis; vertex always sharply carinate, frontal depression open (i. e. nowhere margined) (Figs 4-5, 7) in some species, this is the first record in the genus Gryon, a "sunken area" (Fig. 15) appears below the anterior ocellus corresponding to the so-called "frontal pit" in some species of Trissolcus (BIN 1977).* Other characters are:clypeus conspicuous (Figs 1-2); sequence of the basiconic type sensilla ( = plate sensilla sensu BIN, 1981) lying on the ventral surface of some antennomeres forming the clava = 1, 2, 2, 2, 2, 0; a line of conjuction between the hypostomal sclerites present (Figs 3, 22-24); epomia incomplete (Fig. 6, e); mesopleural carina incomplete and almost parallel with the acetabular carina (Figs 6, 9-12). In order to further complete the diagnosis of this group, one may refer to the above-mentioned paper of MINEO (1980, 1. a). *BIN and DESSART (1981, in litteris) named it subsequently as "preocellar pit"

Next

/
Thumbnails
Contents