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2. A review of the European planthopper genus Trirhacus and related taxa, with a key to the genera of European Cixiidae (Hemiptera: Fulgoromorpha)
- Creator:
- Holzinger, Werner E.
- Type:
- article, model:article, and TEXT
- Subject:
- Trirhacus, Sphaerocixius gen. n., Neocixius, Nanocixius, Apartus gen. n., Simplicixius gen. n., Sardocixius gen. n., rirhacus peloponnesiacus sp. n., Cixiidae, taxonomy, and morphology
- Language:
- English
- Description:
- Ten species of Cixiidae, formerly placed in Trirhacus Fieber, 1875, are redescribed and one additional species is described. They belong to seven genera: Trirhacus s. str. with T. setulosus Fieber, 1876 (type species), T. dubiosus Wagner, 1959, T. biokovensis Dlabola, 1971 and T. peloponnesiacus sp. n., Apartus gen. n. with A. michalki (Wagner, 1948) comb. n. (type species) and A. wagnerianus (Nast, 1965) comb. n., Nanocixius Wagner, 1939 stat. n. with N. discrepans (Fieber, 1876) comb. n., Neocixius Wagner, 1939 stat. n. with N. limbatus (Signoret, 1862) comb. n., Sardocixius gen. n. with S. formosissimus (Costa, 1883) comb. n., Simplicixius gen. n. with S. trichophorus (Melichar, 1914) comb. n. and Sphaerocixius Wagner, 1939 stat. n. with S. globuliferus (Wagner, 1939) comb. n. The phylogenetic relationships of these genera to other Cixiidae are briefly discussed and a key to the genera of European Cixiidae is provided.
- Rights:
- http://creativecommons.org/publicdomain/mark/1.0/ and policy:public
3. Field observations, laboratory rearing and descriptions of immatures of the planthopper Hyalesthes absoletus (Hemiptera: Cixiidae)
- Creator:
- Sforza, Bourgoin, Thierry, Wilson, Stephen W., and Boudon-Padieu, Elisabeth
- Format:
- print, text, and regular print
- Type:
- article, bibliography, model:article, and TEXT
- Subject:
- zoologie, entomologie, hmyz, Hemiptera, Cixiidae, Hyalesthes absoletus, stadium infarktu, morfologie, řádkovací elektronová mikroskopie, 595.2/.7, and 5915
- Language:
- English
- Description:
- The cixiid planthopper Hyalesthes obsoletus Signoret is an efficient vector of the stolbur phytoplasma, the cause of various crop diseases. In the field, this monovoltine species feeds on a wide variety of woody and herbaceous plants. It overwinters as larvae on the roots of its host plants. During this study, we collected adults mainly from lavender (Lavendula angustifolia Miller), bindweed (Convolvulus arvensis L. and C. sepium L.), hoary cress (Cardaria draba L.), and occasionally from plantain (Plantago cynops L.), toadflax (Linaria striata L.), bedstraw (Galium verum L.), and mountain savory (Satureia montana L.). Fertility of field collected females from sites at two different elevations differed significantly. Fertility at 300 m (50.6 eggs per female; N = 28) was more than twice that at 900 m (22.8 eggs per female; N = 19). Only one specimen of the species was found to be parasitized by an undetermined species of Dryinidae (Hymenoptera). H. obsoletus was reared in controlled conditions on lavender. Unlike in the field, larvae developed in the laboratory at the base of the host plant and on basal shoots. Egg incubation averaged 7 ± 1.2 weeks (N = 10). Total development time from egg to adult averaged 27 ± 4 weeks (N = 5) on lavender. A morphological description of the five instars is provided. The study was supplemented by scanning electron microscopy. Particular attention was paid to the structure of the wax-plates and the absence of compound eyes in the early larval stages., René Sforza, Thierry Bourgoin, Stephen W. Wilson, Elisabeth Boudon-Padieu, and Lit
- Rights:
- http://creativecommons.org/publicdomain/mark/1.0/ and policy:public
4. Highly polymorphic di- and trinucleotide microsatellite markers for the grapevine yellows disease vector Hyalesthes obsoletus (Auchenorrhyncha: Cixiidae)
- Creator:
- Imo, Miriam, Lüneburg, Julia, Hankeln, Thomas, Seitz, Alfred, and Johannesen, Jes
- Type:
- article, články, model:article, and TEXT
- Subject:
- Zoologie, entomologie, Cixiidae, Hyalesthes obsoletus, Bois noir, microsatellite, PCR, 2, and 59
- Language:
- English
- Description:
- Seven polymorphic microsatellite loci were developed for the planthopper Hyalesthes obsoletus, vector of stolbur 16SrXII-A phytoplasma. The loci have di- or trinucleotide repeat motifs and are highly variable with 10 to 22 alleles per locus. Observed heterozygosity ranged from 0.278 to 0.950 for the 78 individuals genotyped. One locus is sex-linked. No linkage between loci was found. All loci amplified consistently among phylogeographic as well as host-plant related samples and proved highly informative for population genetic studies. and Miriam IMO, Julia LÜNEBURG, Thomas HANKELN, Alfred SEITZ, Jes JOHANNESEN.
- Rights:
- http://creativecommons.org/publicdomain/mark/1.0/ and policy:public
5. The Cixiidae (Hemiptera: Fulgoromorpha) of the Mascarenes islands and Madagascar. Endemism and description of new taxa from Réunion with notes on their host plants
- Creator:
- Attié, Marc, Bourgoin, Thierry, and Bonfils, Jacques
- Type:
- article, model:article, and TEXT
- Subject:
- Hemiptera, Fulgoromorpha, Cixiidae, Eumyndus, Achaemenes, Aselgeoides, Brixia, Oliarus, Cubana, Borbonomyndus gen. n., Meenocixius gen. n., Achaebana gen. n., new species, endemism, host-plant, Arecaceae, Pandanaceae, La Réunion, Rodrigues, and Madagascar
- Language:
- English
- Description:
- Two new species (Hemiptera, Fulgoromorpha, Cixiidae) included in a new genus, Meenocixius gen. n., and associated with Acanthophœnix rubra (Bory) H. Wendl. (Arecaceae) are described from the island of La Réunion: M. bebourensis sp. n. and M. virescens sp. n. This genus shows several autapomorphies in its tegmina venation, very particular within the Fulgoromorpha. Borbonomyndus gen. n., is proposed for another new species, B. pandanicola sp. n. associated with Pandanus purpurascens Thouars (Pandanaceae), and B. pallidus (Synave), previously described as a member of the genus Eumyndus Synave. According to morphological and ethological data, E. bistriatus is synonymized with B. pallidus, of which three different forms are recognized. All species of Borbonomyndus are found associated with Pandanus. These two new genera are endemic to La Réunion. Without taxonomic standing, the subspecies of Brixia belouvensis are synonymyzed and restricted to four different forms. A key is proposed for the Cixiidae of La Réunion, which now includes 12 species belonging to 6 different genera: Achaemenes, Aselgeoides, Brixia, Oliarus (but we show that the species placed in this genus need to be reviewed), Borbonomyndus, and Meenocixius. Monophyly of Eumyndus, from which E. perinetensis Synave is excluded, is substantiated. Following the new interpretation, this genus is now restricted to Madagascar. The species Cubana insularis Muir, from the island of Rodrigues, is transferred to a new genus: Achaebana gen. n. Finally, cixiid endemism and their host-plant associations in the Mascarenes are discussed.
- Rights:
- http://creativecommons.org/publicdomain/mark/1.0/ and policy:public