粗股蚱Tetrix grossifemura Zheng & Jiang雌性的首次发现（直翅目：蚱总科）

首次记述粗股蚱Tetrix grossifemura ZhengJiang,1997的雌性,研究标本保存于河池学院化学与生物工程学院标本室。     

中国斜翅蝗属的研究及一新种记述（直翅目：斑腿蝗科）

记述斜翅蝗属Eucoptacra Bolivar的研究历史、在中国分布的种类及1新种,即斑腿斜翅蝗E.maculifemura sp.nov.,该新种近似于秉汉斜翅蝗E.binghami Uvarov及大眼斜翅蝗E.megaocula Wang et al.,主要区别于上2种为颜面隆起在触角之间部分的宽度为眼间距宽的1.5倍;后足第1跗节明显宽于第3跗节;后足股节外侧具3个大黑斑。新种的模式标本保存于陕西师范大学动物研究所昆虫标本室。     

龙州蝗属分类研究及一新种记述（直翅目：斑腿蝗科）

系统研究了龙州蝗属,共记述10种,其中包括1新种,即贵州龙州蝗Longzhouacris guizhouensis sp.nov.,该新种近似于斑角龙州蝗L.annulicornis Lu,LiYou,2000,主要区别为:1)前胸背板沟前区长为沟后区长的2.16倍;2)前翅到达第3腹节背板中部;3)后足跗节爪间中垫长为爪长的1.5倍;4)雄性尾片三角形,顶尖;5)触角基半黄褐色,端半暗褐色;6)前翅前半黑褐色,后半淡褐色;7)后足胫节黄绿色。文中附有分种检索表。新种的模式标本保存于陕西师范大学动物研究所昆虫标本室。     

A new species of Ripipteryx from Belize with a key to the species of the Scrofulosa Group (Orthoptera, Ripipterygidae)

A new species of the genus Ripipteryx (Orthoptera: Tridactyloidea: Ripipterygidae) from the Toledo District of southern Belize is described and illustrated. Ripipteryx mopanasp. n. is placed in the Scrofulosa Group based on its elaborately ornamented frons and is readily distinguished from its congeners by the fusion of the superior and inferior frontal folds to form a nasiform median process, the epiproct with both anterior and posterior margins emarginate, the subgenital plate with distinct lateroapical depressions either side of the median line, the basal plate of the phallus strongly bilobed apically, and the development of well-demarcated denticular lobes in the dorsal endophallic valves. A preliminary key to the species of the Scrofulosa Group is provided.     

安徽澳汉蚱属一新种记述（直翅目：蚱总科：枝背蚱科）

记述采自安徽的澳汉蚱属Austrohancockia 1新种,即岳西澳汉蚱A. yuexiensis Zha, Deng & Zheng sp. nov.。该新种近似于嘉氏澳汉蚱A. gressitti和武夷山澳汉蚱A. wuyishanensis, 主要区别为：1）头顶宽是1眼宽的3.0倍;2）颜面隆起纵沟宽为触角基节宽的1.5倍;3）前胸背板肩前的片状隆起具1靠后的深凹陷;4）前胸背板后突不达后足股节顶端,端部中央浅凹;5）雌性生殖板后缘中央三角形突出,后缘两侧弧形突出。模式标本存放于淮北师范大学生命科学学院标本室。     

Ecological drivers of body size evolution and sexual size dimorphism in short‐horned grasshoppers (Orthoptera: Acrididae)

Sexual size dimorphism (SSD) is widespread and variable in nature. Although female‐biased SSD predominates among insects, the proximate ecological and evolutionary factors promoting this phenomenon remain largely unstudied. Here, we employ modern phylogenetic comparative methods on eight subfamilies of Iberian grasshoppers (85 species) to examine the validity of different models of evolution of body size and SSD and explore how they are shaped by a suite of ecological variables (habitat specialization, substrate use, altitude) and/or constrained by different evolutionary pressures (female fecundity, strength of sexual selection, length of the breeding season). Body size disparity primarily accumulated late in the history of the group and did not follow a Brownian motion pattern, indicating the existence of directional evolution for this trait. We found support for the converse of Rensch's rule (i.e. females are proportionally bigger than males in large species) across all taxa but not within the two most speciose subfamilies (Gomphocerinae and Oedipodinae), which showed an isometric pattern. Our results do not provide support for the fecundity or sexual selection hypotheses, and we did not find evidence for significant effects of habitat use. Contrary to that expected, we found that species with narrower reproductive window are less dimorphic in size than those that exhibit a longer breeding cycle, suggesting that male protandry cannot solely account for the evolution of female‐biased SSD in Orthoptera. Our study highlights the need to consider alternatives to the classical evolutionary hypotheses when trying to explain why in certain insect groups males remain small.     

应用16S rDNA序列探讨斑腿蝗科的单系性及其亚科的分类地位

本文测定了斑腿蝗科10亚科20种蝗虫和其他蝗科3种蝗虫的线粒体16S rDNA部分序列,并从GenBank中下载了15种蝗亚目昆虫的16S rRNA基因相应序列片段。比对后的序列长度是397 bp,其中有196个变异位点,157个简约信息位点,A+T平均含量为71.7%,C+G平均含量为28.3%。以序列差异比值为横坐标,以碱基转换数和颠换数为纵坐标作散点图,结果表明颠换多于转换,且随着差异程度的增加,转换明显出现了饱和。以蚱总科的日本蚱Tetrix japonica和卡尖顶蚱Teredorus carmichaeli作外群,用ME、等权MP、加权MP及贝叶斯法重建系统发生树。分子系统树表明,斑腿蝗科并非是一单系群,该科的切翅蝗亚科与稻蝗亚科也均不是一单系群;卵翅蝗、伪稻蝗和稻蝗三者有很近的亲缘关系;支持将黑蝗亚科和秃蝗亚科合为一个亚科——秃蝗亚科;现行的稻蝗亚科并非一单系群,而是一多系群。分子系统学研究结果和传统的基于形态特征的斑腿蝗科的分类体系有很大的不同。