摘要:

Abstract. Four new myrmicine ant genera are described from the Oriental Region.Vombisidrisgen.n. (twelve species) is predominantly an arboreal genus that ranges from India to Queensland, with the majority of species in Malaysia and Indonesia.Rotastrumagen.n. (two species) is known from China, Singapore, and East Malaysia and is also arboreal.Tetheamyrmagen.n. is monotypic and known only from a single leaf litter sample from East Malaysia. The three species ofKartidrisgen.n. are terrestrial and have been found in mountainous areas in southern China. Thailand and India.

ISSN:0307-6970    

DOI:10.1111/j.1365-3113.1991.tb00571.x

出版商:Blackwell Publishing Ltd    

年代:1991

数据来源: WILEY

摘要:

Abstract. Host transfer trials with six strains of the cereal aphid parasitoidAphidius rhopalosiphiDe Stefani‐Perez revealed the presence of two differing host ranges: three strains parasitizedSitobion uvenae(F.) andS.fragariae(Wlk.) exclusively, whereas the others successfully developed in bothSitobionspecies and also inMetopolophium dirhodum(Wlk.),M.festucue cerealiurnStroyan,Rhopalosiphum padi(L.) andDiuraphis muehleiBörner. The two host range groups were poorly distinguishable by means of morphological characters. In con trast, isoelectric focusing proved to be a much better tool for discrimi nation. Reproductive isolation between the two host range groups was clear but not complete, as evidenced by crossing experiments with laboratory‐bred and field‐collected material. Under field conditions, males showed a specific response to virgin females of the two groups. Hence, the sex pheromones of the females were obviously different. Considering these results, a species (Aphidiussp. A) closely related toA.rhopalosiphiseems to occur. As a detailed study of morphological characters is still lacking,Aphidiussp. A is not yet formally established here. Due to its dependence uponSitobionspp.,Aphidiussp. A may be an economically important parasitoid of the pest aphidS.

ISSN:0307-6970    

DOI:10.1111/j.1365-3113.1991.tb00572.x

出版商:Blackwell Publishing Ltd    

年代:1991

数据来源: WILEY

摘要:

Abstract. The morphology of the Coelopidae is considered, particularly in relation to taxonomic characters, terminology, and sexual di morphism. Taxonomic relationships and family limits are discussed; the Coelopidae appear to be most closely related to the families Helcomyzidae and Dryomyzidae of the superfamily Sciomyzoidea. The following genera are excluded from the Coelopidae:ListriomastaxandApetaenus(Tethinidae),Orygma(Sepsidae),Heterocheila(orOedoparea, position doubtful). The position of the generaMalacomyia, BaeopterusandIcaridionin the Coelopidae is confirmed. The Coe lopidae are divided into two subfamilies, Lopinae subfam.n. and Coe‐lopinae. The Coelopinae include four tribes: Glumini trib.n., Coelopini, Coelopellini trib.n., Ammini trib.n. The following genera and species are described as new:Lopa, Gluma, Rhis, This, Amma, Lopa convexa, Gluma keyzeri, G.nitida, G.musgravei, Rhis whitleyi, This canus, Coe‐lopella popeae, Amma blancheae. The subgeneraFucomyiaandNeo‐coelopaof the genusCoelopaare rejected as invalid.Chaetocoelopa huttoniHarrison (1959) is a new synonym ofChaetocoelopa littoralis(Hutton, 1881).Coelopa palauensisHardy (1957) is a new synonym ofC.alluaudiSeguy (1941), which is recorded from Australia for the first time.Coelopa africanaMalloch (1933a) is a new synonym ofC.ursina(Wiedemann, 1824) from southern Africa. Keys are provided to supra‐generic groupings of Coelopidae, to the Australasian genera, and to the species ofChaetocoelopa, Coelopella, GlumaandIcaridion.Information on the biology and ecology of Coelopidae is summarized, and additional data on Australian species are recorded. Coelopids are among the most significant organisms recycling stranded kelp, because of their often enormous biomass. Their activities can be detrimental to sea‐side recreation. Parasitism byStigmatomycessp. (Ascomycetes: Laboulbeniales) is recorded for several coelopid species. The distribution patterns of coelopid taxa are

ISSN:0307-6970    

DOI:10.1111/j.1365-3113.1991.tb00573.x

出版商:Blackwell Publishing Ltd    

年代:1991

数据来源: WILEY

摘要:

Abstract. Morphological evidence from the adults males, females corroborates the recent transfer of the problematic New World genusCoenosopsiafrom the Muscidae to the Anthomyiidae. It is argued that the calyptrate families Anthomyiidae and Muscidae are sister­groups, and that a Neotropical anthomyiid clade,CoenosopsiaMalloch +PhaonanthoAlbuquerque, constitutes the sister‐group of the remaining Anthomyiidae. At present, this clade is largely confined to tropical forests of South and Central America, i.e. an environment avoided by practically all other members of this pronouncedly cold‐adapted, boreal family. The first, earliest Coenozoic, biotic exchange between North and South America and subsequent biotic isolation are proposed to lie behind the primary dichotomy of the Anthomyiidae. Five species ofCoenosopsia, with apparently perfectly allopatric ranges, are recog nized: the NeotropicalC.primaMalloch from Ecuador to SE Mexico,C.peruvianasp.n. from Peru,C.brasiliensissp.n. from Brazil, andC.mexicanasp.n. from SW Mexico, and the NearcticC.floridensissp.n. from N Mexico and SE United St

ISSN:0307-6970    

DOI:10.1111/j.1365-3113.1991.tb00574.x

出版商:Blackwell Publishing Ltd    

年代:1991

数据来源: WILEY

摘要:

Abstract. The Afrotropical ant genusAxinidrisis revised. The pre viously known speciesA.acholliWeber is redescribed, as areA.tridensArnold andA.denticulatumWheeler, species newly transferred toAxinidris. Lectotypes are also designated for these species. Ten new speciesbidens, ghanensis, hylekoites, kakamegensis, kinoin, murielae, nigripes, occidentalis, palligastrionandparvusare described. The queen and male of the genus are described for the first time. A key for the separation of workers is presented, and the known biology and distribution are summarized.

ISSN:0307-6970    

DOI:10.1111/j.1365-3113.1991.tb00575.x

出版商:Blackwell Publishing Ltd    

年代:1991

数据来源: WILEY