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Full-Text Articles in Biology

A New Species Of Saphonecrus (Hymenoptera, Cynipoidea) Associated With Plant Galls On Castanopsis (Fagaceae) In China, Zhiwei Liu, Xiao-Hui Yang, Dao-Hong Zhu, Yi-Yuan He Jul 2012

A New Species Of Saphonecrus (Hymenoptera, Cynipoidea) Associated With Plant Galls On Castanopsis (Fagaceae) In China, Zhiwei Liu, Xiao-Hui Yang, Dao-Hong Zhu, Yi-Yuan He

Zhiwei Liu

A new cynipid species, Saphonecrus hupingshanensis Liu, Yang, et Zhu, sp. nov. (Hymenoptera: Cynipidae: Synergini), is described from China. This is the first species of the inquilinous tribe Synergini ever known to have an association with chinquapins (Fagaceae: Castanopsis). The biology and implication to species diversity of Cynipidae in eastern and southeast Asia are discussed.


Sequencing And Phylogenetic Analysis Of The Wsp Gene Of Wolbachia In Three Geographic Populations Of An Oak Gall Wasp, Andricus Mairei (Hymenoptera: Cynipidae), From Hunan, South China, Xiao-Hui Yang, Dao-Hong Zhu, Zhiwei Liu, Ling Zhao Jan 2012

Sequencing And Phylogenetic Analysis Of The Wsp Gene Of Wolbachia In Three Geographic Populations Of An Oak Gall Wasp, Andricus Mairei (Hymenoptera: Cynipidae), From Hunan, South China, Xiao-Hui Yang, Dao-Hong Zhu, Zhiwei Liu, Ling Zhao

Zhiwei Liu

To understand the effects of Wolbachia in Andricus mairei Kieffer , an oak gall wasp ( Cynipini, Cynipidae) that forms clusters of up to 30 monothalamous galls in the catkins of Quercus glandulifera var. brevipetiolata Nakai, we examined the presence and infection frequency of Wolbachia in three widely separated geographic populations of A. mairei in Hunan Province, South China, using polymerase chain reaction and sequence determination of the wsp gene of Wolbachia from the three populations. Our survey results showed that Wolbachia infection rates were unusually high in the three test populations : 100% for the male wasps from all …


The Swimming Behavior Of The Aquatic Larva Of Neoneuromus Ignobilis (Megaloptera: Corydalidae: Corydalinae)., Cheng-Quan Cao, Zhiwei Liu, Shen-Zhi Chen, Chao Tong Jan 2012

The Swimming Behavior Of The Aquatic Larva Of Neoneuromus Ignobilis (Megaloptera: Corydalidae: Corydalinae)., Cheng-Quan Cao, Zhiwei Liu, Shen-Zhi Chen, Chao Tong

Zhiwei Liu

In order to explore the pattern and significance of swimming, through photos and videos we observed and recorded the swimming behavior of the aquatic larvae of Megaloptera in detail for the first time using the endemic Chinese species Neoneuromus ignobilis Navas, 1932 as the test insect, which were collected from the Dadu River and reared in nature-simulated environments. Four swimming postures are recognized and described herein in detail, i. e., vertical, parallel, back and side swimming, and these postures were used by the larvae disproportionately, with a frequency of 89.08%, 5. 49%, 4. 40% and 0. 61% , respectively. The …


Phylogeny And Geological History Of The Cynipoid Wasps (Hymenoptera: Cynipoidea), Zhiwei Liu, Michael S. Engel, David A. Grimaldi Jan 2007

Phylogeny And Geological History Of The Cynipoid Wasps (Hymenoptera: Cynipoidea), Zhiwei Liu, Michael S. Engel, David A. Grimaldi

Zhiwei Liu

The geological history of the wasp superfamily Cynipoidea is reviewed, with the description of various new taxa, being mostly in Late Cretaceous amber from New Jersey and Canada. The various fossil lineages are incorporated into a phylogenetic analysis of the superfamily, and their implications for understanding the evolution of the group are explored. The following new taxa or taxonomic changes are proposed (authorship of all taxa is Liu and Engel): Protimaspidae, new family; Stolamissidae, new family; Stolamissus, new genus; Stolamissus mirabilis, new species; Proliopterinae, new subfamily; Proliopteron, new genus; Proliopteron redactus, new species; Goeraniinae, new subfamily; Goerania, new genus; Goerania …


Phylogeny, Biogeography, And Revision Of The Subfamily Dallatorrellinae (Hymenoptera, Liopteridae), Zhiwei Liu Jan 2001

Phylogeny, Biogeography, And Revision Of The Subfamily Dallatorrellinae (Hymenoptera, Liopteridae), Zhiwei Liu

Zhiwei Liu

A recent cladistic study suggested that the parasitoid wasp subfamily Dallatorrellinae is a monophyletic clade within the cynipoid family Liopteridae. The subfamily currently includes only four known species belonging to two genera, i.e., the monotypic genus Mesocynips Cameron, 1903 and the genus Dallatorrella Kieffer, 1911 . The present study presents a revision of the subfamily, including descriptions of five new species in the genus Dallatorrella: D. maculata, D. maxima, D. pulla, D. ronquisti and D. sinica. A key to the species of the subfamily is provided. Cladistic analysis of the subfamily at species level is undertaken and the biogeographic history …