华东地区鱼蛉二新种（广翅目：齿蛉科）

本记述华东地区鱼蛉二新种,均为齿蛉科(Corydalidae)的鱼蛉亚科(Chaulioinae),江西斑鱼蛉(Neochauliodes jangxiensis Yang et Yang)采自祁禄山,灰翅栉鱼蛉(Ctenochauliodes Rriseus Yang et Yang)采自黄山,模式标本均保存在北京农业大学昆虫标本室.     

湘西地区不同淡水生境的齿蛉科幼虫多样性特征

齿蛉科昆虫隶属于昆虫纲广翅目,是重要的环境指示生物.本研究调查了湘西地区的齿蛉科幼虫的分布情况,并分析了齿蛉科幼虫在不同生境类型中的多样性特征.共采集到东方齿蛉Neoneuromus orientalis、炎黄星齿蛉Protohermes xanthodes、花边星齿蛉Protohermes costalis和中华斑鱼Neochauliodes sinensis4种齿蛉科幼虫.东方齿蛉仅在自然保护区和自然河流分布,炎黄星齿蛉和花边星齿蛉广泛分布于各种流水生境类型,中华斑鱼蛉除在各种流水生境类型中分布外,在静水的小型水库也有分布.自然河流的齿蛉科幼虫多样性指数H'最高,其余由高到低依次为自然保护区、旅游景区、自然溪沟和农业区;丰富度指数R趋势与H'指数相似,但农业区R指数高于旅游景区.本研究表明,不同种类齿蛉科幼虫在湘西地区的分布情况存在差异,自然条件优越的生境类型中齿蛉幼虫多样性指数较高.     

2种斑鱼蛉(广翅目：齿蛉科：鱼蛉亚科)幼虫和蛹的分类鉴定及形态描述

为了促进广翅目Megaloptera幼虫和蛹的分类鉴定,本文运用幼虫分子数据和成虫形态特征对2种斑鱼蛉属Neochauliodes的幼虫和蛹进行鉴定,并对幼虫和蛹的外部形态进行了详细描述。研究结果表明:1)双齿斑鱼蛉N.bicuspidatus和越南斑鱼蛉N.tonkinensis幼虫和蛹的COⅠ基因序列长度分别为808 bp和820 bp, GenBank登录号为MW560981和MW560982。2)双齿斑鱼蛉和越南斑鱼蛉的末龄幼虫形态区别为:前者头部和前胸背板几乎全黑且无斑纹,后者则有明显复杂的斑纹;前者腹部腹面的"T"型斑纹两部分分离,后者的相连且大小和形状不稳定;前者每一腹节腹面都有相对稳定的"∵"形大黄斑点,后者腹面斑纹存在2种类型。3)蛹的形态区别如下:前者通体体色较深且随时间变化大,后者在临近羽化时只有翅芽颜色加深近黑色;前者腹部第9节背面和腹面长有密集纤长的刚毛,后者光滑无毛。这些差异性状对于2种斑鱼蛉幼虫和蛹的鉴别具有一定的参考价值,但幼虫的花纹和体色变异很大,无法作为稳定的鉴别特征;而蛹在形态鉴定时要考虑体色随时间变化的情况。     

云南省齿蛉亚科的新种记述(广翅目:齿蛉科)

齿蛉亚科(Corydalinae)为中至大型的广翅目昆虫,头部扁平,头顶方形,两侧多具发达的齿突;触角丝状或近似锯齿状,雌雄同型;翅的径横脉(r)一般3条以上,第一臀脉(1A)分2～3支;雄腹端具肛上突和肛下突各一对。 世界已知9属百余种,主要分布于亚洲南部、美洲和非洲南部。我国种类较多,云     

草蛉科纳草蛉属研究（Ⅱ）—六新种记述（脉翅目：草蛉科）

本文是纳草蛉属Navasius研究续报(研究Ⅰ见“动物分类学报”第15卷第3期)。报道了纳草蛉属6新种:跃纳草蛉N.igneus sp.nov.,冠纳草蛉N.lophophorus sp.nov.,黑角纳草蛉N.nigricornutus sp.nov.显沟纳草蛉N.phantosulcus sp.nov.康纳草蛉N.sanus sp.nov.及三齿纳草蛉N.tridentatus sp.nov.。     

普通齿蛉和单斑巨齿蛉(广翅目:齿蛉科)卵块及1龄幼虫形态学研究

本文以普通齿蛉Neoneuromus ignobilis Navás,1932和单斑巨齿蛉Acanthacorydalis unimaculata Yang et Yang,1986为例,描述和比较了广翅目齿蛉科齿蛉属和巨齿蛉属的卵块及1龄幼虫形态特征.结果显示普通齿蛉与单斑巨齿蛉的卵块和1龄幼虫在形态上有着较大差异:普通齿蛉卵块约为单斑巨齿蛉卵块的3/4;普通齿蛉卵粒约为单斑巨齿蛉卵粒的2/3,卵粒都呈圆柱形,差异不大;普通齿蛉外层白色覆盖物厚度是单斑巨齿蛉的2～3倍.普通齿蛉卵块为单个附着在芦苇叶上,形状有4种类型,分别为椭圆形、螺形、卵圆形、圆形,在所有样本中其占比分别依次为47.1％、9.8％、17.6％和25.5％;单斑巨齿蛉卵块多为数个相连附着在桥底,卵壳薄且最外层卵粒向外翘起,使其表面如突起均匀地分布在卵壳表面.普通齿蛉1龄幼虫腹部背面白色的线状裸露区较稳定,且8对气管鳃靠近末端都有褐色和黄色的斑纹,而单斑巨齿蛉1龄幼虫腹部背面呈深褐色,腹部背面裸露区和颜色分布不稳定,气管鳃无花斑;两种1龄幼虫腹部两侧均都无毛簇.这些数据资料不仅丰富了广翅目昆虫的相关知识,而且为其产业化应用提供了参考.     

海南岛齿蛉二新种（广翅目：齿蛉科）

本文为广翅目系统分类研究的一部分,记述了海南岛齿蛉科二新种。     

草蛉科一新属——纳草蛉属研究(Ⅰ)(脉翅目:草蛉科)

本文对草蛉科(Chsysopidae)玛草蛉属Mallada做了修正,并建立一新属——纳草蛉属Navasius gen. nov. 同时报道了纳草蛉属6新种:槽纳草蛉N. alviolatus sp. nov. 钩纳草蛉N. ancistroideus sp. nov. 无斑纳草蛉N. epunctatus sp. nov. 曲纳草蛉N. flexuosus sp. nov. 海南纳草蛉N. hainanus sp. nov. 及和纳草蛉N. hesperus sp. nov.。     

贵州茂兰的广翅目昆虫：（广翅目：齿蛉科）

本文记述了贵州茂兰自然保护区的广翅目昆虫2个属3个种,其中包括1新种。模式标本存北京农业大学昆虫标本室。1.花边星齿蛉Protohermes costalos(Walker) 观察标本:1,贵州茂兰板寨(560-570 m),1990-V-14。 分布:贵州、云南、四川、甘肃、北京、安微、浙江、江西、湖南、福建、广东、广西、台湾;印度、锡金、不丹、越南。     

湘西峒河流域星齿蛉幼虫分子鉴定与体表呼吸结构观察

星齿蛉属Protohermes隶属于广翅目Megaloptera齿蛉科Corydalidae,是一类原始的完全变态昆虫,幼虫水生,常作为指示生物用于水质监测。本文对湘西峒河流域两种星齿蛉幼虫进行了分子鉴定和体表呼吸结构观测。结果表明两种星齿蛉幼虫COⅠ基因序列分别与花边星齿蛉Protohermes costalis和炎黄星齿蛉Protohermes xanthodes同源性较高;遗传距离分析和系统发育分析进一步证实两种星齿蛉幼虫分别属于花边星齿蛉和炎黄星齿蛉,分子鉴定结果与成虫形态鉴定结果一致。花边星齿蛉和炎黄星齿蛉幼虫体表呼吸结构气门、毛簇、气管鳃和臀足侧突均与气管相连,毛簇是主要的水下呼吸结构。本研究结果为峒河流域星齿蛉昆虫资源的保护和开发利用提供了科学数据。     

Revision of the genus Thermistis Pascoe 1867, with descriptions of three new species (Coleoptera: Cerambycidae: Lamiinae: Saperdini)

The genus Thermistis Pascoe 1867 is revised. T. croceocincta conjunctesignata Rondon & Breuning 1971 is upgraded to a species and newly recorded from China and Myanmar. T. xanthomelas Holzschuh 2007 is newly recorded from Vietnam, Laos and Myanmar. T. sulphureonotata Pu 1984 is newly recorded from Vietnam and Laos. Three new species are described from China: T. hainanensis Lin & Yang n. sp. from Hainan Island, T. kaiyuni Chou & Kurihara n. sp. from Taiwan Island and T. cheni Lin & Chou n. sp. from Yunnan and Sichuan provinces. Photographs of habitus and terminalia and a key to the eleven valid species of Thermistis are presented.     

Melocalamus grandiauritus (Poaceae: Bambusoideae), a new clambering species from northern Vietnam

Here we describe and illustrate a new species, Melocalamus grandiauritus N.H. Xia, Q.M. Qin & J. B. Ni sp. nov., from the lowland forest in Thanh Hoa Province, Vietnam. Molecular phylogeny based on the GBSSI indicates that this species is a member of Melocalamus. Morphologically, M. grandiauritus is different from all congeneric species in Vietnam. It is somewhat similar to M. pacoensis H.N.Nguyen & V.T.Tran, but is easily distinguished by having much wider suborbicular culm leaf auricles, very high and ventricose auricles of foliage leaves, entire ligules of both culm leaves and foliage leaves, and large leaf blades.     

Revision of the <Emphasis Type="Italic">Nepalomyia pallipilosa</Emphasis> species group (diptera,dolichopodidae, Peloropeodinae)

The genus Nepalomyia is the largest genus in the subfamily Peloropeodinae, with 47 described species. In the present paper the Nepalomyia pallipilosa species group is established for the following three described species and seven new species: Nepalomyia biseta sp. n., N. emeiensis sp. n., N. guangxiensis Zhang et Yang, N. liui sp. n., N. pallipilosa (Yang et Saigusa), N. ruiliensis Wang et Yang, N. sichuanensis sp. n., N. ventralis sp. n., N. yangi sp. n. and N. zengchengensis sp. n. Information on their distribution is also given or updated.     

Manglietia sapaensis N. H. Xia & Q. N. Vu sp. nov. (Magnoliaceae) from Vietnam

A new species of the family Magnoliaceae, Manglietia sapaensis N. H. Xia & Q. N. Vu from Lao Cai Province, northern Vietnam, is described and illustrated. The well marked species appears to be most closely related to M. garrettii Craib, but differs in being a smaller tree, with shorter petioles not pulvinate at base, leaf‐lamina oblong to oblong‐elliptic, white flowers, and pubescent gynoecium.     

Asarum yentuense sp. nov. (Aristolochiaceae) from Vietnam

A new species, Asarum yentuense N. Tuan & Sasamoto (Aristolochiaceae), is described from Quang Ninh Province, Vietnam. This species belongs to A. subgen. Heterotropa sect. Longistylis and is most similar to Asarum petelotii, A. glabrum, A. reticulatum and A. magnificum var. dinghuense, but is differentiated by morphology, including the length of the calyx tube and lobes, and phenology.     

苦苣苔科凹柱苣苔属在越南的发现及水晶凹柱苣苔的补充描述

中越边境喀斯特地区有着异乎寻常的植物多样性,已经成为全球生物多样性研究和保护的热点区域,近年来在该区发现了多个苦苣苔科植物的新种或新属。凹柱苣苔属是2010年才被建立的新属,该属的花与叶相比,花较大,叶相对较小,叶片边缘稍外卷,花序仅单花,柱头盘状或凹坑状,蒴果长椭球形而有别于苦苣苔科的其他属。凹柱苣苔属为喀斯特专性植物,目前仅包括分布于黔西南的凹柱苣苔和分布于滇东南的水晶凹柱苣苔两个物种。作者在开展中越边境喀斯特地区植物多样性调查时,在越南北部的河江省发现了水晶凹柱苣苔,基于该新发现居群的植物标本,对其进行了补充描述,确认其花期为11月—12月,并对该物种濒危状况进行了重新评估,同时提供了野外生态照片以资辨认。目前,越南已记录苦苣苔科植物32属150余种,凹柱苣苔属在越南北部的发现,不仅丰富了该国苦苣苔科植物的多样性,再一次充分证明了中越边境喀斯特地区是一个完整的植物区系地理单元,而且为稀有的水晶凹柱苣苔提供了更加丰富的野外本底资料,对其将来的深入研究和保护具有重要的生物地理学和保护生物学意义。     

Machilus parapauhoi sp. nov. and a new synonym of Machilus (Lauraceae) from east Asia

A new species of the genus Machilus Nees (Lauraceae) from China, M. parapauhoi F. N. Wei, S. C. Tang & W. B. Xu is described and illustrated. The new species is similar to M. pauhoi Kanehira, but differs in its densely appressed pubescent branchlets and petioles, shorter petiole, 0.8–1.2 cm long and an infructescence conspicuously shorter than the leaf. It is also similar to M. kwangtungensis Yang, but differs by its oblique leaves, with falcately curved apex and 14–18 lateral veins on both sides of the midrib. Based on a study of the type and isotype specimens of M. balansae (Airy Shaw) F. N. Wei & S. C. Tang and M. grandifolia S. Lee & F. N. Wei, M. grandifolia is regarded as a new synonym of M. balansae.     

Population systematics of the snake genus Naja (Reptilia: Serpentes: Elapidae) in Indochina: Multivariate morphometrics and comparative mitochondrial DNA sequencing (cytochrome oxidase I)

We analyze the population systematics of Asiatic cobras in Indochina, China and the Andaman Islands by means of comparative sequencing of the cytochrome oxidase subunit I gene of the mitochondrial DNA molecule and multivariate analysis of morphological characters. Canonical variate analysis and mtDNA sequence information reveal that the cobras of this region comprise four distinct species: Naja atra from China and northern Vietnam, Naja kaouthia from Burma, central Thailand, Cambodia and southern Vietnam, Naja siamensis from Thailand, Cambodia and southern Vietnam, and Naja sagittifera from the Andaman Islands. The subspecies N. kaouthia suphanensis Nutaphand 1986 shows no mtDNA sequence difference from typical N. kaouthia from central Thailand, and multivariate analysis does not reveal differences in general phenotypic profile; the subspecies is therefore synonymised with Naja kaouthia. The cytochrome oxidase subunit I gene, little used in molecular taxonomy, is shown to be well suited for studies at the species level, as it shows taxonomically useful levels of interspecific divergence but low levels of intraspecific variation; this is particularly relevant for studies of rare species, where sample size is a problem. The combination of multivariate morphometrics and molecular systematics can be particularly powerful in resolving systematic problems in such cases.     

Evolutionary history of the complex polymorphic dobsonfly genus Neoneuromus (Megaloptera: Corydalidae)

The dobsonfly genus Neoneuromus van der Weele is endemic to the Oriental region. Species possess highly variable body and wing colouration and markings, not only among species but also among conspecific individuals of certain species. This stark polymorphism hinders accurate species identification, and obscures an undocumented species diversity as well as our understanding of the evolutionary history of this genus. We used multiple methods of molecular identification combined with morphological evidence to delimitate species, circumscribing a total of 13 species in Neoneuromus . Five new species are herein described: Neoneuromus indistinctus Liu, Hayashi & Yang, sp.n. , Neoneuromus maculatus Liu, Hayashi & Yang, sp.n. , Neoneuromus niger Liu, Hayashi & Yang, sp.n. , Neoneuromus similis Liu, Hayashi & Yang, sp.n. and Neoneuromus vanderweelei Liu, Hayashi & Yang, sp.n. The dated phylogeny with reconstructed ancestral areas indicates an initial divergence of Neoneuromus during the mid‐Eocene. A broad area including northeastern India and northern Indochina could be a centre for early divergence of the genus, while complex dispersal and vicariance events dating from the late Eocene to the Pliocene probably shaped the present diversity and distribution of the genus. Our ancestral character state reconstruction suggests that the pale and dark colour forms among different species, or conspecifics, could evolve rapidly and that changes in colouration could be driven by species‐specific mate recognition.     

新疆翠雀花属三新种

该文描述了在新疆维吾尔自治区发现的毛茛科翠雀花属三新种,包括隶属于密花翠雀花组高翠雀花亚组的二新种,即布尔津翠雀花(Delphinium buerjinense W.T.Wang&Z.Z.Yang)和尼勒克翠雀花(D.nilekeense W.T.Wang&Z.Z.Yang),以及隶属于翠雀花组须花翠雀花亚组的一新种,即哈巴河翠雀花(D.habaheense W.T.Wang&Z.Z.Yang);此外,还分别描述了此三新种与近缘种的区别特征。