水生动物医学专业教学质量提升的思考与探索

水生动物医学作为一门新专业,其教学必须主动适应新形势,科学设计专业教学定位和人才培养模式,不断创新教学理念,更好地服务于社会。因此,如何提高其教学质量无疑是摆在当前水产高等院校面前的一大难题。该文在分析水生动物医学专业教学特点的基础上,从教学内容设置、教学方法改进、师资队伍建设、实践技能培养、教学效果评价等方面阐述了水生动物医学专业教学的创新措施,以期促进我国水生动物医学教学质量的提高。     

世界储藏物拟步甲分类进展

直接和间接危害储藏物的拟步甲与人类经济利益十分密切,是害虫综合治理的重中之重.该类甲虫全球已记录9亚科98属277种(亚种),约占拟步甲科物种总数的1.11%,是构成储藏物甲虫物种多样性的主要成员.迄今为止,该类甲虫在中国记录了5亚科32属72种(亚种).由于这类特殊群体能在相对干燥的储藏物环境中正常繁衍生息,形成了极强的应对仓库和居室环境的能力.本文根据大量文献资料对其全球范围内的基本分类状况、物种多样性、分布与发生为害情况做了初步综述,对其分类研究中存在的主要问题和不足及今后研究关切做了初步讨论,为中国储藏物昆虫的研究及生产管理等提供指导性参考.     

Morphological evolution from aquatic to terrestrial in the genus Oreolalax （Amphibia, Anura, Megophryidae）

A phylogeny of 17 species in the genus Oreolalax is reconstructed based on 21 morphological characters from adult specimens, skeleton specimens, tadpoles and eggs. Four species groups are recognized, of which the O. rugosus species group is the most primitive, the O. weigoldi species group is the second, the O. omeimontis species group is the third and the O. pingii species group is the most recently diversified. Based on the evolutional tendency of the morphological characters on the phylogenetic tree, it is proposed that the evolution of tympanum, tympanic annulus, columella, spoon-like cartilage and the web between toes reflect the habit changes from aquatic to terrestrial. Thus, Oreolalax is regarded as one important representative genus to study further the evolution of morphological characters from aquatic to terrestrial.     

The ninth brachypterous Onthophagus Latreille (Coleoptera: Scarabaeidae: Scarabaeinae) of the world: a new species from Mexico

A new brachypterous species of Onthophagus from Mexico, belonging to the New World chevrolati species group, is described and illustrated. Illustrations of the male and female dorsal habitus, and genitalia are provided. The relationships with other brachypterous species that occur in Guerrero (Mexico) are discussed. Placement of the new species in the chevrolati group key is provided. Additionally, new locality records for O. inflaticollis Bates are provided.

http://www.zoobank.org/urn:lsid:zoobank.org:pub:747118CE-6A93-401A-8625-5A75479980AD     

A revision of the species of the Neoserica (sensu lato) vulpes group (Coleoptera: Scarabaeidae: Sericini)

This paper revises the species belonging to the Neoserica (sensu lato) vulpes group and results in one new combination, Neoserica (sensu lato) vulpes (Arrow, 1946) comb. nov., and 24 new species originating mainly from south-western China: N. baishuiensis sp. nov., N. baoshana sp. nov., N. biuncinata sp. nov., N. dundai sp. nov., N. ganhaiziana sp. nov., N. heishuiana sp. nov., N. kereni sp. nov., N. laocaiana sp. nov., N. lateriuncinata sp. nov., N. leiboensis sp. nov., N. luzhouana sp. nov., N. ningyuanensis sp. nov., N. nykli sp. nov., N. parausta sp. nov., N. pseudovulpes sp. nov., N. rubellula sp. nov., N. ruzickai sp. nov., N. shinkaisiensis sp. nov., N. sichuanica sp. nov., N. usta sp. nov., N. weishanensis sp. nov., N. xiaguanensis sp. nov., N. kunmingensis sp. nov. and N. yangjiapingensis sp. nov. A key to species and illustrations of genitalia and habitus of adults are given, including distribution maps of all species.

http://zoobank.org/urn:lsid:zoobank.org:pub:3FE6CC54-DB3A-4201-A6F9-332E4A397268     

茂兰自然保护区不同林型地表甲虫物种多样性

2018年5月～9月,通过采用巴氏罐诱法对茂兰自然保护区6种林型地表甲虫组成进行调查.结果为:(1)共采集标本3858号,隶属33科,优势类群为隐翅虫科和步甲科地表甲虫,分别占个体总数的25.52％和16.41％;常见类群有金龟甲科、叩甲科、粪金龟科、天牛科、象甲科、鳃金龟科、丽金龟科、拟步甲科、拟叩甲科、锹甲科、扁甲...     

Chemical secretion and morpho-histology of the pygidial glands in two Palaearctic predatory ground beetle species: Carabus (Tomocarabus) convexus and C. (Procrustes) coriaceus (Coleoptera: Carabidae)

Although all ground beetles have pygidial glands homologous in structure and function, there are many differences among species, often significant, in terms of chemical composition of the secretion and morphology of the gland components. In this paper, two predatory ground beetle species of the genus Carabus, namely C. (Tomocarabus) convexus and C. (Procrustes) coriaceus, were subjected to chemical, morphological and histological study of their pygidial glands and the glands’ secretions. Altogether, three carboxylic acids were isolated, and the pygidial gland reservoir and other glandular parts are morphologically described in the study. We also tested whether there exist differences in chemical content of the secretion obtained by upsetting the beetles in a traditional way and that obtained directly from intact reservoirs. Detailed data on morphology of the pygidial glands of both species are presented, as well as updated information about the chemical components of the glandular secretions. Apart from tiglic and methacrylic acids, which are typical for Carabus pygidial secretions, we also found benzoic acid as a minor component of the secretion in both species. In addition, a chemotaxonomic overview of Carabus taxa is given in the paper.