The Eastern Asian species of the subgenus Orthostegana in the genus Stegana are reviewed based on the results of Li et al.＇s phylogenetic analysis. The subgenus Anastega is fused with the subgenus Orthostegana as syn...The Eastern Asian species of the subgenus Orthostegana in the genus Stegana are reviewed based on the results of Li et al.＇s phylogenetic analysis. The subgenus Anastega is fused with the subgenus Orthostegana as syn. nov.. Four new species are described from Yunnan, China： Stegana （Orthostegana） flavicauda Zhang ＆ Chen sp. nov., S. （O.） hirsutinna Zhang ＆ Chen sp. nov., S. （O.） hylecoeta Zhang ＆ Chen, sp. nov. and S. （O.） multicardua Zhang ＆ Chen sp. nov.. Two known species： S. （O.） curvinervis （Hendel, 1914） and S. （O.） singularis Sidorenko, 1990, comb. nov. are described complementally. A table showing uncorrected pairwise p-distance among the DNA sequences of the mitochondrial COl and ND2 genes of six Orthostegana species is provided.展开更多
Four new species of Lordiphosa denticeps species-group are reported from Yunnan,China,namely Lordiphosa gruicollara sp.nov.,Lordiphosa eminens sp.nov.,Lordiphosa incidens sp.nov.and Lordiphosa piliferous sp.nov.The di...Four new species of Lordiphosa denticeps species-group are reported from Yunnan,China,namely Lordiphosa gruicollara sp.nov.,Lordiphosa eminens sp.nov.,Lordiphosa incidens sp.nov.and Lordiphosa piliferous sp.nov.The distribution of the species of denticeps species-group shows distinct geographical replacement.展开更多
The predatory bug,Orius majusculus(Reuter),is an important predator of thrips commercially produced for augmentative releases using the eggs of the Mediterranea n flour moth Ephestia kuehniella(Zeller).In this study,w...The predatory bug,Orius majusculus(Reuter),is an important predator of thrips commercially produced for augmentative releases using the eggs of the Mediterranea n flour moth Ephestia kuehniella(Zeller).In this study,we assessed the potential for using frozen adults of fruit flies,Drosophila melanogaster(Meigen),either as nymphal rearing diet or as diet throughout the entire life-cycle.We compared life-hi story traits and reproduction of predators when fed D.melanogaster with high lipid body content(lipid-rich)and with high protein body content(protein-rich),using a diet of 100%E.kuehniella eggs as control.We also analyzed the biochemical composition of both prey and predator in order to assess the nutritional quality of each diet,which partially explained the adequacy of the different diets for O.majusculus.There were significant differences between predators fed the two types of D.melanogaster,with the protein-rich flies as diet providing the best results in terms of mortality and fecundity.Furthermore,we show that while feeding O.majusculus throughout their development with D.melanogaster increases mortality and reduces reproduction,protein-rich D.melanogaster can be used as nymphal diet with minimal reduction in reproductivity and minimal increase in mortality.展开更多
基金supported by National Natural Foundation of China (30970396,31093430)
文摘The Eastern Asian species of the subgenus Orthostegana in the genus Stegana are reviewed based on the results of Li et al.＇s phylogenetic analysis. The subgenus Anastega is fused with the subgenus Orthostegana as syn. nov.. Four new species are described from Yunnan, China： Stegana （Orthostegana） flavicauda Zhang ＆ Chen sp. nov., S. （O.） hirsutinna Zhang ＆ Chen sp. nov., S. （O.） hylecoeta Zhang ＆ Chen, sp. nov. and S. （O.） multicardua Zhang ＆ Chen sp. nov.. Two known species： S. （O.） curvinervis （Hendel, 1914） and S. （O.） singularis Sidorenko, 1990, comb. nov. are described complementally. A table showing uncorrected pairwise p-distance among the DNA sequences of the mitochondrial COl and ND2 genes of six Orthostegana species is provided.
文摘Four new species of Lordiphosa denticeps species-group are reported from Yunnan,China,namely Lordiphosa gruicollara sp.nov.,Lordiphosa eminens sp.nov.,Lordiphosa incidens sp.nov.and Lordiphosa piliferous sp.nov.The distribution of the species of denticeps species-group shows distinct geographical replacement.
文摘The predatory bug,Orius majusculus(Reuter),is an important predator of thrips commercially produced for augmentative releases using the eggs of the Mediterranea n flour moth Ephestia kuehniella(Zeller).In this study,we assessed the potential for using frozen adults of fruit flies,Drosophila melanogaster(Meigen),either as nymphal rearing diet or as diet throughout the entire life-cycle.We compared life-hi story traits and reproduction of predators when fed D.melanogaster with high lipid body content(lipid-rich)and with high protein body content(protein-rich),using a diet of 100%E.kuehniella eggs as control.We also analyzed the biochemical composition of both prey and predator in order to assess the nutritional quality of each diet,which partially explained the adequacy of the different diets for O.majusculus.There were significant differences between predators fed the two types of D.melanogaster,with the protein-rich flies as diet providing the best results in terms of mortality and fecundity.Furthermore,we show that while feeding O.majusculus throughout their development with D.melanogaster increases mortality and reduces reproduction,protein-rich D.melanogaster can be used as nymphal diet with minimal reduction in reproductivity and minimal increase in mortality.
