Search results for "INSECT"
showing 10 items of 2033 documents
Current knowledge of the subfamily Anacharitinae (Hymenoptera: Figitidae) in the Australasian region
2015
A revision of the Anacharitinae material from Australia and New Zealand deposited in the Natural History Museum of London and material from Papua New Guinea deposited in the Museum National d'Histoire Naturelle of Paris was conducted. The ranges of the previously known described Anacharis zealandica Ashmead and Xyalaspis victoriensis New are expanded. A new Australasian species of Anacharis Dalman, Anacharis tasmaniae sp. nov., is described, and the genus Aegilips Haliday is cited for the first time in the region, with the description of Aegilips papuensis sp. nov. The biology and distribution patterns of Australa- sian anacharitines are discussed.
Review and a New Subfamily Placement of the Plant Bug GenusIsometocorisCarvalho and Sailer, 1954 (Hemiptera: Heteroptera: Miridae), with the Descript…
2015
Abstract The genus Isometocoris Carvalho and Sailer is reviewed and I. penicillus, new species, from Brazil is described. Diagnoses of the genus and included species I. blantoni Carvalho and Sailer and I. penicillus, n. sp., are given; a color adult habitus photo of both Isometocoris species, male genitalic drawings of Isometocoris penicillus n. sp., and scanning electron micrographs of selected structures of I. blantoni are provided; and an identification key is given to help distinguish the two included species. Isometocoris is transferred from the subfamily Psallopinae to the Cylapinae, where it is placed in the tribe Fulviini. Psallopinae is reduced to tribal level (Psallopini, new stat…
Description of Two New Species of Anacharitinae (Hymenoptera: Figitidae) from the Afrotropical Region
2014
An revision of current knowledge on subfamily Anacharitinae for the Afrotropical Region is given. Two new species are described: Acanthaegilopsis hemicoriaceus Mata-Casanova & Pujade-Villar sp. n. and Xyalaspis subsaharica Mata-Casanova & Pujade-Villar sp. n. Diagnostic characters are illustrated and data about biology, distribution and morphological variability are discussed.
Effect of the host plant on the immunity of a phytophagous insect : influence of grape variety on the ability of the European grapevine moth to defen…
2013
In tritrophic interactions involving phytophagous insects, host plants and natural enemies, trophic levels are highly dependent on each other. Host plant may strongly affect directly phytophagous insect and indirectly natural enemies growing on these phytophagous insects. When a natural enemy attacks a phytophagous insect, the host immune system constitutes the last chance for the host to survive to an infection. A great variation of insect immune system is generally found in populations for susceptibility to pathogens, suggesting that variable selection pressures may have shaped and driven adaptation of immune traits. This project aims to determine the influence of both host plant and natu…
On Methods of Swarm Control
1931
Mittel- und nordeuropäische Weberknechte aus dem Senckenberg Museum Frankfurt (Arachnida: Opiliones)
2005
Central and North European harvestmen from the Senckenberg Museum Frankfurt (Arachnida: Opiliones). About 1100 individuals belonging to 32 opilionid species (300 series), mainly of German origin, were identified based on material provided by, and stored at, the Senckenberg Museum, Frankfurt (Main). A list of all species with habitat information is included. Comments on two remarkable species (Oligolophus hanseni, Odiellus spinosus) are given. The comments include the importance of some series as reference material from MARTENS (1978), additions to regional faunas and the expansion of the known distribution of some thermophilous species.
Determinants essential for the transmissible gastroenteritis virus-receptor interaction reside within a domain of aminopeptidase-N that is distinct f…
1994
The swine-specific coronavirus transmissible gastroenteritis virus (TGEV) uses pig aminopeptidase-N (pAPN) as a cellular receptor. We showed that the human aminopeptidase-N (hAPN) cannot substitute for pAPN in this respect, although the two enzymes have 80% amino acid sequence identity. In order to map the TGEV binding site on pAPN, we constructed a series of APN cDNA chimeras between pAPN and hAPN and analyzed them for their capacity to confer infectivity. The region between residues 717 and 813 was found to be essential for infectivity. This region also contains the epitopes for three TGEV-blocking monoclonal antibodies directed against pAPN. These data support the view that the catalytic…
Interspecific aggression and character displacement in the damselfly Calopteryx splendens
2004
Problems in species recognition are thought to affect the evolution of secondary sexual characters mainly through avoidance of maladaptive hybridization. Another, but much less studied avenue for the evolution of sexual characters due to species recognition problems is through interspecific aggression. In the damselfly, Calopteryx splendens, males have pigmented wing spots as a sexual character. Large-spotted males resemble males of another species, Calopteryx virgo, causing potential problems in species recognition. In this study, we investigate whether there is character displacement in wing spot size and whether interspecific aggression could cause this pattern. We found first that wing …
Species-specific sex pheromones secreted from new sexual glands in two sympatric fungus-growing termites from northern Vietnam, Macrotermes annandale…
2004
Reproductive isolation in termites is not well known. Our study carried out on two sympatric species from northern Vietnam, Macrotermes annandalei and M. barneyi, showed that dispersal flights and sex pheromones were two important factors in their reproductive isolation. These fungus-growing termites were isolated, partially due to the timing of their respective dispersal flights. M. annandalei flew the first day after rain, while the flights of M. barneyi occurred the second day after rain. However, the flights can also be simultaneous in the two species. Sex pheromones of M. annandalei and M. barneyi were shown to be species-specific. In both species, they were secreted by females from tw…
New and little known species of the genus Parapholidoptera Maran (Insecta, Orthoptera)
2009
Material of species of the genus Parapholidoptera Maran is presented. New records of P. noxia (Ramme) are reported from Georgia, P. georgiae sp. n. from Georgia and P. kalashiani sp. n. from Armenia are described. P. syriaca is newly reported from Lebanon. (© 2009 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)