COMPARATIVE MORPHOLOGICAL STUDY ON THE FEMALE GENITALIA OF SPECIES IN THE SUBFAMILY PRIONINAE ( COLEOPTERA, CERAMBYCIDAE)

比较研究了锯天牛亚科4族10属20种(亚种)的雌性生殖器特征.研究结果表明:雌性生殖器特征在锯天牛亚科族级、属级和种级均具有分类学意义.此研究对传统外部形态分类特征进行了补充.     

脊虎天牛属八种雌性生殖器比较研究(鞘翅目,天牛科,天牛亚科,虎天牛族)

记述了脊虎天牛属Xylotrechus 8 种雌性生殖器,比较研究了该属雌性生殖器的结构特点,结果表明:骨杆形状、交配囊的形状、受精囊的形状、受精囊腺的形状等雌性生殖器特征具有重要的分类学意义;通过生殖器特征对比,柳脊虎天牛与脊虎天牛属其余7种雌性生殖器特征差异不明显,因此作者认为将其归属于脊虎天牛属Xylotrechus 并将 Turanoclytus作为脊虎天牛属 Xylotrechus的一个亚属是合理的.     

中国天牛亚科(鞘翅目,天牛科)后翅比较研究

比较研究了天牛亚科18族53属115种后翅翅脉.研究结果表明:后翅翅脉反映了一定的进化趋势,依据MP3+4的变化可将天牛亚科分为4种类型和若干过渡类型;天牛亚科后翅翅脉在族级和属级具有明显的分类学意义,并依据所选取的后翅翅脉特征建立了该亚科检索表,在过渡类型中,后翅翅脉还具有种级分类学意义;提出了天牛亚科的后翅翅脉命名图,Kukalová-Peck和Lawrence (2004)的后翅翅脉命名系统在CuAF,r4,AA3+4和肘脉等特征上不适用于天牛亚科.     

柄天牛属八种(亚种)雌性生殖器的比较研究(鞘翅目,天牛科,天牛亚科)

记述了柄天牛属8个种(亚种)的雌性生殖器,比较研究了该属雌性生殖器的结构特点.结果表明:柄天牛属雌性生殖器在骨杆形状、受精囊管长短等方面存在不同程度的差异;通过雌性生殖器特征对比,黄颈柄天牛、暗胸柄天牛、红腹柄天牛三者虽然存在一定差异,是否应作为同一种依据不足,故仍保留亚种地位.     

中国椎天牛亚科雄性外生殖器比较形态学研究(鞘翅目:天牛科)及其分类学意义（英文）

描述并比较了中国椎天牛亚科4族7属的雄性外生殖器结构特点。结果表明:椎天牛亚科内有18个雄性外生殖器结构特征存在差异,其中阳基侧突的形状、阳基侧突的长宽比,腹部第8节背板的形状等5个特征在椎天牛亚科内族级水平具有重要分类学意义;阳基侧突占阳茎的比例,腹部第8节背板的被毛情况等6个特征在幽天牛族内属级水平具有重要分类学意义;同时阳基侧突的长宽比,腹部第8节背板的被毛情况可用于塞幽天牛属中近似种的区分。基于雄性外生殖器的结构,编制了椎天牛亚科分族及幽天牛族分属的检索表。     

膜花天牛属五新种及一新记录(鞘翅目:天牛科, 花天牛亚科)

膜花天牛属(Necydalis)以往隶属于花天牛亚科Lepturinae,70年代以来,日本、苏联某些天牛分类专家主张膜花天牛族Necydalini从花天牛亚科独立出来,提升为亚科级,即Necydalinae,鉴于我们对该族缺乏成虫翅脉及幼虫的研究,因此本文仍将该族归入花天牛亚科。该族在我国包括两个属,即膜花天牛属及蜂花天牛属(Ulochaetes),     

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。     

重突天牛族中国老挝二新纪录种（鞘翅目：天牛科：沟胫天牛亚科）

记述天牛科沟胫天牛亚科重突天牛族1中国新纪录种:老挝缨额天牛Momisis submonticola Breuning,1968和1老挝新纪录种:黄蓝眼天牛Bacchisa guerryi(Pic,1911),补充了黄蓝眼天牛B.guerryi(Pic,1911)的雌、雄生殖器描述。     

天牛科5亚科昆虫成虫口器形态比较

观察比较了天牛科5亚科昆虫成虫口器的形态特征。结果表明:沟胫天牛亚科上颚切齿钝,花天牛亚科和天牛亚科中访花天牛上颚内缘具毛刷,沟胫天牛亚科和锯天牛亚科天牛不具毛刷;锯天牛亚科下颚内颚叶退化,沟胫天牛亚科、花天牛亚科、天牛亚科中内颚叶、外颚叶均发达,沟胫天牛亚科下颚须第4节纺锤状,锯天牛亚科、花天牛亚科棒状,天牛亚科形态多样;花天牛亚科和天牛亚科中访花天牛下唇唇舌发达,分2叶且膜质,其他亚科中唇舌均有骨化。锯天牛亚科天牛内颚叶退化,与其成虫阶段不取食有关,花天牛亚科和天牛亚科中访花天牛唇舌发达且成膜质,与访花习性有关。     

中国锯天牛族后翅翅脉研究(鞘翅目,天牛科,锯天牛亚科,锯天牛族)(英文)

对中国锯天牛族的后翅基部关节和后翅翅脉特征进行了研究,发现利用Kukalová-Peck和Lawrence (2004)的后翅命名系统能够很好地对中国锯天牛族后翅翅脉进行命名。但是在中国锯天牛族中,后中脉( MP)和前肘脉(CuA)在后缘并不合并;当前臀脉( AA3)和前肘脉(CuA3 +4)与后肘脉(CuP)相遇时,前臀脉(AA3)消失,前肘脉(CuA3 +4)和后肘脉(CuP)合并,因此楔室(W)仅由肘脉(Cu)的分支脉围成。尽管基部翅关节在研究的各属和各种之间没有表现出差异,但是后翅翅脉在土天牛属Dorysthenes和锯天牛属Prionus不同种类之间差异明显,这些特征包括径室的长宽比例和各边的长度关系、r3存在与否及其长度、后径脉的长度、楔室的长宽比例、以及后中脉(MP3 +4)和前肘脉(CuA3 +4)端部是否分叉等。因此,后翅翅脉特征在土天牛属Dorysthenes和锯天牛属Prionus分种时可能具有分类学意义。     

中国爻蛱蝶属与耳蛱蝶属(鳞翅目,蛱蝶科)分类地位探讨

通过对耳蛱蝶Eulaceura osteria与爻蛱蝶Herona marathus的成虫形态特征、雌雄外生殖器解剖特征、地理分布的比较研究,并结合闪蛱蝶亚科系统发育分析结果,表明耳蛱蝶与爻蛱蝶成虫外部形态特征及雌雄外生殖器解剖特征存在许多相同之处,地理分布相互重叠;系统发育分析结果该2种并入同一支系,互为姊妹群关系;建议将耳蛱蝶归入爻蛱蝶属中,同时将耳蛱蝶属作为爻蛱蝶属的异名处理。     

Female genitalia are moderately informative for phylogenetic inference and not concerted with male genitalia in Saprininae beetles (Coleoptera: Histeridae)

Our study – the first of its kind within Histeridae (Coleoptera) – deals with the female genitalia in the subfamily Saprininae, with respect to their variation and utility for phylogenetic reconstruction. Morphology of female genitalia (chiefly characters of the spermatheca, and variation of the gonocoxites, articulating sclerites and gonostyli) is herein described and depicted. We perform parsimony‐based morphological phylogenetic analyses of Saprininae using combined datasets that comprise somatic, male and female genitalia characters. We assess phylogenetic utility of female genital characters and test for their correlation with male genital characters. We found that female genitalia are generally moderately informative for phylogenetic reconstruction. The somatic and male genitalia characters (on average) possess higher phylogenetic signal; female genitalia provide better support and diagnoses for particular clades (emphasizing their importance for systematics), in which the evolution of female genitalia can be linked to environmental factors imposed by the mode of life. Regardless of the degree of informativeness, structures of female genitalia represent an additional interesting and important source of information for systematics and taxonomy. We did not find any evidence of correlated evolution between male and female genitalia.     

Unlocking the "Black box": internal female genitalia in Sepsidae (Diptera) evolve fast and are species-specific

Background  

The species-specificity of male genitalia has been well documented in many insect groups and sexual selection has been proposed as the evolutionary force driving the often rapid, morphological divergence. The internal female genitalia, in sharp contrast, remain poorly studied. Here, we present the first comparative study of the internal reproductive system of Sepsidae. We test the species-specificity of the female genitalia by comparing recently diverged sister taxa. We also compare the rate of change in female morphological characters with the rate of fast-evolving, molecular and behavioral characters.     

河北省张家口地区苍耳蠹虫的识别

本文通过对苍耳蠹虫的形态分类特征观察,特别是雄蛾外生殖器爪形突、抱器腹刺、雌蛾第八腹节背板的特征,鉴定河北省张家口地区的苍耳蠹虫为远东苍耳螟。     

凤实蝇属的分类厘订 (双翅目: 实蝇科: 实蝇亚科)

在实蝇亚科Trypetinae内，由于凤实蝇属Felderimyia Hendel与邻实蝇属Ptilona van der Wulp在诸多形态特征和雌性外生殖器构造方面十分近似，因此此属应归隶于刺脉实蝇族Acanthonevrini。对凤实蝇属进行了重新界定，详细描述中国1新纪录种：黑翅凤实蝇F.fuscipennis Hendel，并提供分种检索表和特征图。     

中国尾蛱蝶属雄性外生殖器比较形态学研究(鳞翅目,蛱蝶科,螯蛱蝶亚科)

对中国尾蛱蝶属Polyura9个种的雄性外生殖器进行了比较形态学研究,结果表明,雄性外生殖器种间存在明显差异,可作为种类鉴别依据;并根据雄性外生殖器特征编制了中国尾蛱蝶属的种检索表。     

Systematics of Anopheles lanei Galvão and Amaral, a species of the subgenus Nyssorhynchus Blanchard (Diptera: Culicidae)

Anopheles (Nyssorhynchus) lanei Galv?o and Amaral is here redescribed using morphological characteristics of adult, male and female, fourth instar larva and pupa. The larva, pupa, and male genitalia are illustrated. Diagnostic morphological characters of adults, male genitalia, fourth instar larva and pupa are provided to distinguish An. lanei from other species of the Argyritarsis section. Species distribution data are based on the published literature records and bionomics data are based on both literature records and field data.     

Anopheles halophylus,a new species of the subgenus Nyssorhynchus (Diptera: Culicidae) from Brazil

Anopheles halophylus n.sp. is described from Central Brazil. It is distinguished from An. triannulatus (Neiva and Pinto) by morphological and morphometric characters, especially in the male genitalia, larva and egg. Illustrations of the male and female genitalia, egg, larva and pupa, and discussion of the status of names associated with An. triannulatus are provided.     

Phylogeny of the Heterodoxus octoseriatus group (Phthiraptera: Boopiidae) from rock-wallabies (Marsupialia: Petrogale)

The phylogenetic position of the Heterodoxus octoseriatus group is inferred from morphological characters. Two character states support monophyly of this group. Another indicates that its sister-group is a group of 11 other Heterodoxus species (here called the H. calabyi group), that infest at least seven other genera of macropodid marsupials. Fourteen potential apomorphies, associated with the male and female genitalia, are identified. Evident rapid and divergent evolution of the genitalia, however, precludes determination of their polarity by comparison with an out-group (the sister-group). Consequently, phylogeny in the H. octoseriatus group is inferred from the close similarity of morphological characters. In light of the phylogenetic analysis and a phenogram, speciation and the evolution of morphological characters in the H. octoseriatus group is discussed.     

Alternative techniques to study characters of the genitalia in Lepidoptera

The present note aims to describe two alternative methods for observing genitalia in Lepidoptera. The first one provides means to examine both male and female genitalia without spoiling the scales of the abdomen, preserving it attached to the thorax and aesthetically similar to an unexamined specimen. The second one provides ways of observing certain characters on the male genitalia in a non-destructive way, and does not depend on time-consuming removing and dissection of the abdomen. It is expected that the presented techniques will help on morphological studies and on identifying similar species which consistently differ in genitalic armatures.