叶甲亚科一新属及两新种记述（鞘翅目：叶甲科）

记述中国叶甲亚科1新属:玉龙叶甲属Yulongedon gen.nov.,包括2新种:靓玉龙叶甲Y.formosus sp.nov.,宝藏神玉龙叶甲Y.jambhalai sp.nov.。     

广西叶甲亚科昆虫种类记述(鞘翅目:叶甲科)

记述中国科学院动物研究所 1 998～ 2 0 0 0年对广西十万大山及大瑶山地区考察所采获叶甲亚科并该所标本馆馆藏叶甲亚科标本及文献记载 ,共 2 0属 35种 ,其中包括1中国新记录属 Pseudolina Jacoby、1新种 Gonioctena( Brachyphytodecta) oculata sp.nov.、2中国新记录种 Pseudolina indica Jacoby,Paropsides bouveri Chen。模式标本保存在中国科学院动物研究所。     

Reproductive and subsocial behaviour in the ovoviviparous leaf beetle Gonioctena sibirica (Coleoptera: Chrysomelidae)

Abstract.

• 1 In the spring, females of the leaf beetle Gonioctena sibirica deposited larvae on the ventral surface of growing young leaves situated on the apical position of shoots of the willow Salix bakko.
• 2 The parent females remained with the larvae usually on the underside of the basal part of leaves, facing toward the base of shoots. When other arthropods approached, the females temporarily moved towards these intruders, showing aggressive behaviour such as swinging the body or stamping the legs. Many females remained with their larvae until the larvae grew into the final (fourth) instar. No female produced an additional brood in the field.
• 3 Broods from which parent females were experimentally removed suffered higher mortality than those in which females were left intact. Arthropods such as spiders and ants were observed preying on the larvae. In contrast, the survivorship of broods from which females were removed and intruders were excluded with a sticky substance applied to the base of twigs was not different from that of control broods. These results demonstrate that the main mortality factor of offspring is pedestrian arthropod predators and females physically repel the predators.
• 4 Potentially alternative reproductive strategies, such as producing a large number of offspring by iteroparity and/or larger brood(s) with less or no care, seem to be inhibited in G.sibirica by larval dependence on growing young leaves which are temporally limited and by ovoviviparity which may have limited brood size.

     

中国扁叶甲属地理分布格局研究(叶甲科,叶甲亚科)

本文运用GIS技术研究扁叶甲属Gastrolina在中国的地理分布格局。以采集地的行政单元转换地理坐标与动物地理区划图叠加后产生叶甲的地理分布图。结果显示此属主要分布在华中区、华北区、华南区、西南区、东北区。根据地理分布图及有关分析,认为华中区中部、华北区西北部是该属的丰富度中心和分布中心,华中区中部为中国扁叶甲多样性中心和分化中心。     

Taxonomic review of the Haliplidae (Coleoptera) in the Korean peninsula

A taxonomic review of Korean Haliplidae Aubé is presented. Eight species in two genera are recognized, one of which (Haliplus diruptus Balfour‐Browne) is reported for the first time in South Korea. We also found that H. ovalis Sharp previously recorded in the Korean peninsula was an incorrect identification of H. chinensis Falkenström. Habitus and scanning electron microscopy (SEM) photographs, diagnoses of genera, additional characters of species and diagnostic characters with illustrations of the species are provided.     

Taxonomic review of the genus Copelatus Erichson (Coleoptera: Dytiscidae) in Korea

A taxonomic review of the genus Copelatus Erichson (Coleoptera: Dytiscidae) in Korea is presented. In the present study, five species of Copelatus are recognized from Korea, including one unrecorded species, C. kammuriensis. We provide a key to the Korean species of Copelatus, diagnosis of one unrecorded species, habitus photographs, scanning electron micrographs of the elytron, and illustrations of the aedeagus.     

Phylogeography of the Vosges mountains populations of Gonioctena pallida (Coleoptera: Chrysomelidae): a nested clade analysis of mitochondrial DNA haplotypes

The pattern of genetic variation in the leaf beetle Gonioctena pallida was investigated inside the Vosges mountains using a highly variable 363 bp DNA fragment of the mitochondrial control region. Sequencing of 242 individuals, sampled in a geographical area of 100 x 40 km, identified 61 haplotypes whose genealogy was inferred. The resulting haplotype network exhibits four star-like phylogenies, two of which may be indicative of a population having recently expanded in size from a small number of founders. Nested clade analysis suggested multiple past expansion events, but also isolation by distance and possibly past fragmentation events, as the causes of the detected geographical associations of haplotypes. These results indicate the existence of effective barriers to gene flow inside the investigated area. Because the oldest demographic events inferred in the nested clade analysis were identified as expansion events, we hypothesize that a small population of founders have expanded not only in size, but also in geographical range from the south towards the north and east of the Vosges.     

A new species of the genus Chrysolina Motschulsky, 1860 from Turkey (Coleoptera: Chrysomelidae: Chrysomelinae)

A new leaf beetle species, Chrysolina (Lopatinica) kabalaki sp. n., from Northeast Turkey is described and compared with closely related species. Habitus and male genitalia of the species are photographed. A key is provided for the species.

http://www.zoobank.org/urn:lsid:zoobank.org:pub:89CEE108-138D-4D38-837D-A8C3682BB773     

Revision of Phaedon Latreille from China (Coleoptera:Chrysomelidae)

Sixteen species of the genus Phaedon Latreille are revised and illustrated from China, including five new species described herein, namely P. geminatus sp. nov., P. huizuensis sp. nov., P. igori sp. nov., P. insolitus sp. nov., P. prosternalis sp. nov. All species are redescirbed or original described. Figures of important morphological features are provided. The natural history of some species are provided including the host plants records. A key to species of Phaedon from China is presented. The type specimens of the new species described here are deposited in Institute of Zoology, Chinese Academy of Sciences(IZCAS), Mauro Daccordi collection(MDC), Horst Kippenberg collection(HKC) and Zoological Institute, Russian Academy of Sciences(ZIN).     

A Taxonomic Study on the Larvae of the Genus Pyrrhalta Joannis (Coleoptera: Chrysomelidae: Galerucinae) from Korea

Last instar larvae of Pyrrhalta annulicornis, P. fuscipennis, P. humeralis, P. lineola and P. maculicollis are described and illustrated for the first time in Korea. Their taxonomic remarks, tubercle patterns and a key are also given.     

Subsocial Neotropical Doryphorini (Chrysomelidae,Chrysomelinae): new observations on behavior,host plants and systematics

A summary of literature, documented observations and field studies finds evidence that mothers actively defend offspring in at least eight species and three genera of Neotropical Chrysomelinae associated with two host plant families. Reports on three Doryphora species reveal that all are oviparous and feed on vines in the Apocyanaceae. Mothers in the two subsocial species defend eggs and larvae by straddling, blocking access at the petiole and greeting potential predators with leaf-shaking and jerky advances. A less aggressive form of maternal care is found in two Platyphora and four Proseicela species associated with Solanaceae, shrubs and small trees. For these and other morphologically similar taxa associated with Solanaceae, genetic distances support morphology-based taxonomy at the species level, reveal one new species, but raise questions regarding boundaries separating genera. We urge continued study of these magnificent insects, their enemies and their defenses, both behavioral and chemical, especially in forests along the eastern versant of the Central and South American cordillera.     

Korean species of the genus Bisnius Stephens (Coleoptera: Staphylinidae)

Two Korean species of the genus Bisnius Stephens are studied. Bisnius macies (Sharp), found along the seashore of some islands, is introduced for the first time in Korea.     

The mesothoracic intercoxal perforation in Chrysomelinae and its evolutionary significance (Insecta: Coleoptera: Chrysomelidae)

In the thorax of many beetles the posterior parts of the mesoventrite and anterior parts of the metaventrite are flexed inward to form mesocoxal cavities laterally and a transverse double-walled infolding medially. This study focuses on the structure of the median part of the infolding in Chrysomelinae (=Timarchini + Chrysomelini; 42 species studied). Whereas the infolding is intact in Timarchini and very few Chrysomelini, it is almost always perforated in Chrysomelini. The perforation connects the body cavity anterior and posterior to it. It is usually small or absent in wingless Chrysomelinae, but there are exceptions. The phylogenetic interpretation of the intercoxal perforation in the entire Cucujiformia is unclear: among Chrysomelidae, the perforation was found in a representative of Hispinae, but was absent in the cryptocephaline and criocerine species examined; among non-chrysomelid Cucujiformia the perforation was found in an anthribid, but was absent in the examined tenebrionid and erotylid species. From a functional perspective, the perforation likely reduces the movability of the intercoxal area. The origin of this perforation appears as an unusual type of evolutionary structural transformation where ± widely separated (but opposed) parts of the body wall belonging either to two external projections or to a single infolding (depending on the point of view) became attached to each other along their external surfaces, and then dissolved. As a result, the parts of the body cavity on both sides of the perforated walls came to communicate in a new place.     

Taxonomic review of the subfamily Nacerdinae (Coleoptera: Oedemeridae) in Korea

Here, we present a taxonomic review of the oedemerid subfamily Nacerdinae in Korea. Eleven species in five genera under two tribes are recognized. The subgenus Nacerdes (Patiala), represented by Nacerdes (Patiala) ocularis (Lewis), is identified for the first time in Korea. Keys, diagnoses, habitus photos of adults, and drawings of male genitalia are provided.     

Korean species of the genus Coptodera Dejean (Coleoptera: Carabidae: Lebiinae)

A truncatipennes‐group species, Coptodera japonica Bates, is newly recorded from Korea. Here we provide a diagnosis and systematic accounts of C. japonica Bates and a key to the species of Korean Coptodera.     

Giant-sized chromosomes in genus Phyllobrotica Chevrolat 1837 (Coleoptera: Chrysomelidae: Galerucinae) and parthenogenesis in P. adusta (Creutzer 1799)

Only females were detected in a small population of Phyllobrotica adusta (Creutzer 1799) (Chrysomelidae: Galerucinae) located in a mountain near Kastoria (Greece). Their karyotype, composed of 42 chromosomes, including three giant-sized ones, is assumed to be triploid. Only two giant-sized chromosomes were present in the 37,X/38,XX karyotype of the congeneric sexual species P. quadrimaculata (L. 1758). Although males were described in P. adusta, the abnormal sex ratio, the presumed triploidy and the absence of spermatozoa in the spermatheca strongly suggest a parthenogenetic reproduction of the population studied. Both parthenogenesis and giant-sized chromosomes have been described independently in some species of Neotropical and Palearctic Galerucinae, but never together.