中国刺虎天牛属二新种(鞘翅目,天牛科,天牛亚科)

记述中国刺虎天牛属2新种,即赤红刺虎天牛Demonax rufus sp.nov.和福贡刺虎天牛Demonax fugongensis sp.nov..模式标本保存在西南农业大学昆虫标本馆.     

Sexual Selection of Zorion guttigerum Westwood (Coleoptera: Cerambycidae: Cerambycinae) in Relation to Body Size and Color

Zorion guttigerum is a flower-visiting longhorned beetle endemic to New Zealand. Sexual selection of this species in relation to the body size and color form of different sexes was investigated in the field. The population sex ratio, based on censuses of feeding and mating sites (flowers), is male-biased. Females are significantly larger than males. Both sexes have antennae of similar length but the antennal length relative to the elytral length is greater in males than in females, and the antennal length of males increases more with an increase in body size than that of females. Both sexes have dark blue (DB) and yellowish-brown (YB) individuals. Both pair-bonded and solitary males are similar in elytral and antennal length. In pair-bonded males, DB individuals are significantly more numerous than YB ones, but in solitary males, the number of both color forms is similar. Males tend to have territory protection behavior, fighting with and chasing away rival males from feeding and mating sites. Larger males usually win the fight but the size-dependent fighting advantage does not translate into mating success. Male color plays an important role in mating success, with DB males having a significantly better chance to mate than YB males. Furthermore, male body size and color also have interactions in mating success: males of DB color morph obtain a greater mating advantage according to body size. Pair-bonded females are significantly larger and have longer antennae than solitary females, suggesting that males prefer larger females for mating. In addition, females of DB color morph with longer antennae are also preferred by males for mating. The significance of these findings is discussed.     

中国锯翅天牛属一新纪录种及黑翅锯翅天牛雄性描记(鞘翅目,天牛科,天牛亚科)(英文)

报道了采自中国云南省的天牛科锯翅天牛属1新纪录种,银毛锯翅天牛Microdebilissa argentifera(Holzschuh,1984),详细描述了新纪录种的形态特征;补充描述了黑翅锯翅天牛 Microdebilissa atripennis(Pu,1992)的雄性特征;提供了分布于中国的锯翅天牛属的昆虫名录。研究标本保存于西南大学昆虫标本馆。     

中国脊虎天牛属一新种及一新亚种(鞘翅目:天牛科:天牛亚科)

记述中国天牛亚科脊虎天牛属1新种及1新亚种,即十四斑脊虎天牛Xy-lotrechusquattuordecimmaculatus,nov.sp.和侧线脊虎天牛侧断点亚种Xylotrechuslateralisfracturis,nov.ssp.。模式标本保存在西南农业大学昆虫标本馆。     

北京的脊虎天牛属分类研究(鞘翅目:天牛科)

对分布于北京的10种脊虎天牛属甲虫开展了分类研究,恢复了北京脊虎天牛Xylotrechus pekingensis Pic,1939的地位,不再是宽带脊虎天牛Xylotrechus yanoi Gressitt,1934的异名,报道了本种在河北和陕西的新分布记录.提出双带脊虎天牛Xylotrechus bifenestratus Pic,1916是四带脊虎天牛Xylotrechus polyzonus (Fairmaire,1888)的新异名,两者的模式标本均产自北京.本文还报道了3种北京新记录种:显纹脊虎天牛X.ibex (Gebler,1825)、葡脊虎天牛X.pyrrhoderus Bates,1873和黑胸脊虎天牛X.robusticollis (Pic,1936).通过检视标本,很多新的分布信息被加入到相关的种类.最后本文提供了分布于北京的10种脊虎天牛属甲虫的分种检索表.     

中国天牛科两新纪录属和八新纪录种（鞘翅目）

记录了中国天牛科2新纪录属和8新纪录种:显毛天牛属Cristaphanes Vives,2009和毛长角天牛属Trichacanthocinus Breuning,1963;泰森显毛天牛Cristaphanes tysoni Vives,2017、狭拟裂眼天牛Dymasius angustatus(Pic,1925)comb.nov.、多毛绿虎天牛Chlorophorus capillatus Holzschuh,2006、门字纹艳虎天牛Rhaphuma subvarimaculata GressittRondon,1970、查氏脊虎天牛Xylotrechus chatterjeei(Gardner,1940)、金斑类蜡天牛Cereopsius aureomaculatus Breuning,1968、毛长角天牛Trichacanthocinus rondoni Breuning,1963和斜带艾格天牛Egesina partealboantennata Breuning,1965。     

虎天牛族中国六新纪录种(鞘翅目,天牛科,天牛亚科)

共记述了绿虎天牛属Chlorophorus Chevrolat中国1新纪录种,横纹绿虎天牛Chlorophorus copiosus Holzschuh;艳虎天牛属Rhaphuma Pascoe中国2新纪录种,回纹艳虎天牛Rhaphuma lanzhui Holzschuh和箭纹艳虎天牛Rhaphuma illicata Holzschuh;刺虎天牛属Demonax T homson中国3新纪录种,断纹刺虎天牛Demonax traudae Holzschuh,蔷薇刺虎天牛Demonax rosae Holzschuh和格氏刺虎天牛Demonax gertrudae Holzschuh。研究标本保存在西南大学昆虫标本馆。     

天牛亚科一新纪录属和二新纪录种(鞘翅目,天牛科)

记述了天牛科Cerambycidae天牛亚科Cerambycinae 的中国1新纪录属锤腿天牛属Nyphasia Pascoe,1867,以及中国2新纪录种:老挝锤腿天牛N.pascoei Lacordaire,1869和长纹绿虎天牛Chlorophorus rufimembris Gressitt& Rondon,1970,研究标本保存在西南大学昆虫标本馆.     

Characterization of the complete mitogenome of Trachylophus sinensis (Coleoptera: Cerambycidae: Cerambycinae), the type species of Trachylophus and its phylogenetic implications

Complete mitochondrial genomes (mitogenomes) have long been proved as reliable markers for phylogenetic reconstruction among diverse animal groups, especially benefited from recent rapid development of sequencing techniques. However, the mitogenomes of many important clades remain poorly represented, which restricted the understanding of macroscale evolutionary history of these groups. Here, we sequenced and characterized the complete mitogenome of Trachylophus sinensis, a type species of the Trachylophus genus, which also represents the first sequenced mitogenome in this genus. The complete circular mitogenome was 15,746 bp in length, containing 37 typical genes and one noncoding AT-rich control region. The nucleotide composition of the mitogenome was highly A + T biased, accounting for 70.07 % of the whole mitogenome with a slightly positive AT skewness (0.106). The 13 Protein coding genes (PCGs) used ATN as their start codons, except nad1 which used TTG. All tRNA genes were predicted with a characteristic cloverleaf secondary structure except trnS1^(AGN), whose dihydrouridine (DHU) arm was replaced by a simple loop. Phylogenetic analyses recovered Cerambycinae as a monophyletic group with high node supports and the sister relationship between T. sinensis and Nadezhdiella cantori. However, we found that deeper nodes showed not strong support, which may be caused by limited taxa sampling in our study. More mitogenomes should be sequenced representing various taxonomic levels, especially closely related species, which will enhance our understanding of phylogenetic relationships among Cerambycinae.     

蒙古高原天牛亚科昆虫种类组成及区系分析

对蒙古高原天牛亚科昆虫种类组成及区系进行初步分析,已记载共26属69种,各属所包含的天牛种类数量差异很大,以Xylotrechus为优势属,Chlorophorus次之,且在俄、蒙、中三国,各属的种类组成、数量也有差异;在种的组成中,以古北种所占比例最大,为60.87%,广布种也占有相当比例为39.13%。Xylotrechus在俄、蒙、中三国均以古北种占优势,而Chlorophorus在蒙古国以古北种占优势,在俄、中两国以广布种占优势。柽柳漠天牛Hesperophanes heydeni Baeckm.为中国新记录种。中国无分布记录的蒙古高原天牛亚科昆虫有4种:戈壁鞍背天牛Asias gobiensis Namhaidorzh、乌布苏虎天牛Chlorophorus ubsanurensis Tsherepanov、蒙瘦尾鞘天牛Leptepania okunevi Shabliovsky、阿木尔脊虎天牛Xylotrechus pantherinus(Sav.)。