Revision of the genus Phloeoditica Schedl - with description of two new genera and two new species in Phloeosinini (Coleoptera, Curculionidae, Scolytinae)

The genus Phloeoditica Schedl currently includes four species from Southeast Asia. These species vary substantially in important morphological characters and indicate the existence of multiple genera for these species. A revision based on morphological and in part molecular data resulted in the transfer of Phloeoditica setosa to Pseudoxylechinus the erection of a new genus Asiophilus for Phloeoditica phloeosinoides and a new species Asiophilus macropunctatus from Vietnam. Another new genus with affinities to Phloeoditica is described based on the new species Microditica uniseriata from Thailand. The new genera are included in a revised key to the tribe Phloeosinini.     

小刺甲属系统学研究(鞘翅目,拟步甲科)

对中国及其毗邻地区的小刺甲属Myatis Bates,1879进行了系统学研究,共记录7种,绘制了新种和已知种的特征图和的成虫照片,编制了世界小刺甲属已知种检索表,并对该属的系统进化关系进行了初步的支序分析.标本保存在河北大学博物馆.新种描述如下.     

The genus Arhaconotus Belokobylskij (Hymenoptera, Braconidae, Doryctinae) from China, with description of a new species

The genus Arhaconotus Belokobylskij (Hymenoptera: Braconidae, Doryctinae) is recorded for the first time from China. A new species of this genus, Arhaconotus hainanensis Tang & Chen, sp. n., is described and illustrated. A key to the species of this genus is updated to include the new species.     

A new species of Parapygmephorus Cross, 1965 (Acari; Heterostigmatina; Neopygmephoridae) phoretic on Halictus quadricinctus (Fabricius, 1776) (Hym.; Halictidae) from Iran

A new species of the genus Parapygmephorus Cross, 1965 (Acari: Heterostigmatina, Neopygmephoridae) is described from Northeastern Iran. A phoretic adult female of Parapygmephorus khorasanicus Hajiqanbar and Khaustov sp. n. was discovered clasping on hairs on the ventral body surface of Halictus quadricinctus (Fabricius, 1776) (Hymenoptera; Halictidae). It is the fifth representative among the known species of the genus Parapygmephorus in the world. Differentiation of new species from other species of the genus is discussed, and a key to known world species is provided.     

中国西北地区维特疣(虫兆)属一新种(弹尾纲,疣(虫兆)科)

描述了采自中国西北地区的维特疣属Vitronura1新种——陕西维特疣,模式标本保存在中国科学院上海生命科学研究院。新种与属内其它种的区别在于上颚具有7齿,上唇有4根毛,头部背面毛的数量明显少于其它种类,An疣上有2根毛,胸部第2～3节的Di疣上分别有3根毛,腹部第1～4节De疣上分别有3根普通毛和1根感觉毛,腹部第5节的Di疣互相分离。文中同时还编制了该属中国种类检索表。     

A review of the Banchus-group of ichneumon-flies, with a revision of the Australian genus Philogalleria (Hymenoptera: Ichneumonidae)

ABSTRACT. The composition and relationships of the Banchus genus-group are discussed. A key to the genera is provided and for each genus a diagnosis and notes are given. A new genus and species are described. The genus Philogalleria Cameron is revised: six species (five of them new) are recognized, described and keyed. Rhynchobanchus is newly recorded from Britain and a key is given to its European species.     

中国鳞姚属一新种及一新纪录种记述(弹尾目,鳞(虫兆)科)

记述弹尾目Collembola鳞姚科Tomoceridae鳞姚属Tomocerus 1新种,即斑点鳞姚Tomocerus (Tomocerus) maculatus sp.nov.和1新纪录种,即巴地鳞Tomocerus (Tomocerus) asoka Yosii et Ashraf,1965.新种模式标本保存于中国科学院动物研究所.     

A new species of Kanahia (Asclepidiaceae) with a reconsideration of the genus

A new species, K. carlsbergiana , is described in what is currently considered a monotypic genus. The new species is only known from permanent streams in the Arssi and Bale regions of S Ethiopia. The delimitation and position of the genus is reconsidered in light of the additional information provided by the new species. The distinctiveness of the genus is reconfirmed whilst no new clues to possible relationships with other genera were observed. The taxonomy of the other species, K. laniflora (Forssk.) R. Br., is also briefly reconsidered.     

A revision of the genus Labidochromis (Teleostei: Cichlidae) from Lake Malawi

The diagnosis of the genus Labidochromis is revised to include species with bicuspid outer teeth. Sixteen species, of which 13 are new, are described and illustrated and the validity of five others is discussed. The interrelationships between members of the genus and the relationship of the genus to other genera are discussed. No clearly defined sister group to the genus has been found either within or outside the Lake Malawi cichlid species flock. A key based on the coloration of known species is included.     

Phylogeny and zoogeography of three new species of the genus Hexabathynella (Crustacea, Malacostraca, Bathynellacea) from North America

Three new species of the genus Hexabathynella , H. otayana sp. n., H. hessleri sp. n. and H. muliebris sp. n., from North America are described. A comparison with previous studies results in the reevaluation of characters already known and the discovery of new constitutive characters. The distal spine of the mandibular spine row is regarded as a synapomorphy of the three new species and two previously known species, H. knoepffleri , H. minuta , which constitute a monophyletic group within the genus, the knoepffleri-group. The phylogenetic relationships between the five species are depicted with a cladogram. The setation on the uropodal exopod is shown to be not only a new unique character for the genus, but also a significant one in classifying its species. The presence of the ancestor species of the genus before the Triassic and dispersal during Mesozoic continental drift are assumed to explain the transatlantic occurrence of the knoepffleri-group and the distribution pattern of the other species.     

中国波翅青尺蛾属分类研究(鳞翅目:尺蛾科:尺蛾亚科)

波翅青尺蛾属Thalera世界共记录6种和5亚种。中国已知3种和3亚种,本文记述5种和3亚种,其中包括采自四川巴塘1新种淡波翅青尺蛾Thalera simpliria sp.nov.和1新纪录种。文中给出了中国波翅青尺蛾属分种检索表和新种的成虫及外生殖器图。淡波翅青尺蛾,新种Thalera simpliria sp.nov.(图2,3,6,7）新种与Th.lacerataria Graeser,1889相似,但有以下不同：新种前翅外缘在M1与M3之间的缺刻极浅;前后翅外线较圆滑：♂外生殖器抱器瓣基部的三角形骨化片细尖,囊形突较细,钩形突较短粗;♀外生殖器后阴片有一方形弱骨化区域。     

A remarkable new genus of Cretaceous dustywings (Neuroptera： Coniopterygidae)in amber from northern Myanmar

A new dustywing genus and species,namely Cretaconiopteryx grandis gen.& sp.nov.,from the mid-Cretaceous amber of Myanmar is herein described in the lacewing family Coniopterygidae.The new genus is distinguished from all other dustywing species by the combination of following morphological features:relatively large body-size,comparatively rich crossvenation,origin of RP+MA near wing base in both fore-and hindwing,forewing RA and RP terminally fused into a loop,and proximally zig-zagged forewing CuP.A new subfamily,Cretaconiopteryginae subfam,nov.,is erected based on this spectacular new genus.The new subfamily might represent the basalmost lineage of known coniopterygids.     

中国角腹蚁属分类研究及一新种记述(膜翅目: 蚁科)

本文记述华南地区角腹蚁属 1新种 ,光亮角腹蚁 Recurvidris glabricepssp.nov.。新种与皮克氏角腹蚁 R.pickburni Bolton相似 ,但有如下不同 :头部及前胸背板光亮 ;并胸腹节刺较粗 ;结节具长的腹柄下突。文中还提供我国已知 3种角腹蚁工蚁分种检索表。新种正模标本保存于广西师范大学生物系 ,副模标本保存于嘉道理农场暨植物园和广西师范大学生物系。     

Discovery of the second species of Pseudohypocrea (Hypocreaceae)

A new species of the monotypic genus Pseudohypocrea is described based on a collection from Tai Po Kau, Hong Kong, China. The fungus is characterized by globose to subglobose perithecia entirely immersed in a pulvinate reddish-brown stroma, cylindrical asci with smooth-walled and lemon-shaped part-ascospores, and occurring on dead leaves. Morphological features of the new species are described and compared with the only known species of the genus.poi     

Two new species of Acervus (Pezizales) with a key to species of the genus

Studies on the genus Acervus from China are reviewed briefly. Six of the seven known species of the genus are currently recorded in this country. Acervus beijingense and A. changchunense are described as new based on morphological features and molecular data, and A. flavidus with minor emendation is added to the Chinese fungus flora. Phylogenetic relationships among four of the seven species of the genus are investigated based on the 28S rDNA sequence analysis. Species of the genus formed a single clade with high bootstrap support. The sequences of A. epispartius forma epispartius and that of A. flavidus obtained from materials in different geographical regions together formed a group with 100% bootstrap support. Ascospore size and shape are important criteria in the taxonomy of the genus and are phylogenetically informative. A dichotomous key to all described species of the genus is provided.     

History and current taxonomic status of genus Agrobacterium

The genus Agrobacterium was created a century ago by Conn who included it in the family Rhizobiaceae together with the genus Rhizobium. Initially, the genus Agrobacterium contained the non-pathogenic species Agrobacterium radiobacter and the plant pathogenic species Agrobacterium tumefaciens and Agrobacterium rhizogenes. At the end of the past century two new pathogenic species, Agrobacterium rubi and Agrobacterium vitis, were added to the genus. Already in the present century these species plus Agrobacterium larrymoorei were reclassified into genus Rhizobium. This reclassification was controversial and for a time both genus names were used when new species were described. Few years ago, after a taxonomic revision based on genomic data, the old species A. rhizogenes was maintained in the genus Rhizobium, the old species A. vitis was transferred to the genus Allorhizobium and several Rhizobium species were transferred to the genus Agrobacterium, which currently contains 14 species including the old species A. radiobacter, A. tumefaciens, A. rubi and A. larrymoorei. Most of these species are able to produce tumours in different plants, nevertheless the genus Agrobacterium also encompasses non-pathogenic species, one species able to nodulate legumes and one human pathogenic species. Taking into account that the species affiliations to five Agrobacterium genomospecies have not been determined yet, an increase in the number of species within this genus is expected in the near future.