Six new species of the spider genus Spiricoelotes species (Araneae,Agelenidae) from caves in Jiangxi,China

Six new species of the spider genus Spiricoelotes Wang, 2002 are described, Spiricoelotes anshiensis Chen & Li, sp. n. (♂♀), Spiricoelotes chufengensis Chen & Li, sp. n. (♂♀), Spiricoelotes nansheensis Chen & Li, sp. n. (♂♀), Spiricoelotes taipingensis Chen & Li, sp. n. (♂♀), Spiricoelotes xianheensis Chen & Li, sp. n. (♂♀) and Spiricoelotes xiongxinensis Chen & Li, sp. n. (♀). All new species were collected from caves in Jiangxi Province, China.     

Five new Platocoelotes species (Araneae,Agelenidae) from caves in southern China

Five new Platocoelotes species are described based on both sexes collected from caves in southern China. They are: Platocoelotes luoi sp. n. from Jiangxi, Platocoelotes qinglinensis sp. n. from Yunnan, Platocoelotes shuiensis sp. n. from Guizhou, Platocoelotes tianyangensis sp. n. from Sichuan and Platocoelotes xianwuensis sp. n. from Hubei.     

A new genus of Coelotinae (Araneae,Agelenidae) from southern China

One new genus of the spider subfamily Coelotinae, Flexicoelotesgen. n., with five new species is described from southern China: Flexicoeloteshuyunensissp. n. (female), Flexicoelotesjiaohanyanensissp. n. (male and female), Flexicoelotesjinlongyanensissp. n. (male and female), Flexicoelotespingzhaiensissp. n. (female), Flexicoelotesxingwangensissp. n. (male and female).     

Four Species of Theridiid Spider (Araneae) from Korea with a Description of New Species, Robertus naejangensis

Four species of the family Theridiidae, Robertus naejangensis sp. nov., Chrysso pulcherrima (Mello‐Leitao), Neottiura herbigrada (Simon) and Theridion longipalpum Zhu, are described with illustrations of their diagnostic features. The latter three species are newly recorded in the Korean spider fauna.     

Mechanics of trichobothria in orb-weaving spiders (Agelenidae,Araneae)

Summary When a fly is humming at a distance of about one centimetre from an orb-weaving spider (Agelenidae) the trichobothria on the spider's extremities are deflected by air streams and air vibrations. Frequency analysis of the hum of the two prey animals,Drosophila andMusca, shows that the effective sound velocities of the harmonics with frequencies inferior to some five hundred Hz exceeds that of higher frequencies by a factor of at least 5. Biologically relevant resonances would, therefore, have to be looked for in the range of a few hundred Hz. Frequency response diagrams show that single hairs have no resonance between a few Hz and approximately 2 kHz. The maximal relative amplitude of hairs of different lengths shifts from the longer to the shorter hairs with increasing frequency. As this is only a minor effect, however, it appears that there is no frequency discrimination by the mechanical apparatus. Constant air streams with a velocity of 40 mm/s cause hair deflection of about 10 degrees (the hair's bend is neglibible). Similarly, near-field particle velocity of sound fields up to a few hundred Hz is well transmitted. The mechanical directional sensitivity does not depend on the azimuthal angle of deflection. Thus, information about direction and velocity of stationary and near-field air movements is transmitted without deformation by the mechanical apparatus. This is well matched with the fact that the hair is multiply innervated.Supported by grants of the Deutsche Forschungsmeinschaft in the field of the Schwerpunktprogramm Rezeptorphysiologie     

New species and two new records of the spider family Theridiidae (Araneae) from Korea

Three theridiid spiders, which are a new species, Neospintharus baekamensis n. sp., and two species new to Korea, Cryptachaea riparia (Blackwall, 1834) and Lasaeola yoshidai (Ono et al., 1991), are described. The illustrations and diagnoses for all of the species are also provided.     

Six species of Tortricinae (Lepidoptera, Tortricidae) new to North Korea

Six species of Tortricinae based on the materials in the Hungarian Natural History Museum were added to the North Korean fauna: Aethes rectilineana (Caradja), Gynnidomorpha luridana (Gregson), G. permixtana (Denis & Shiffermüller), Alceris uniformis (Filipjev), Eana vetulana (Christoph) and Neocalyptis angustilineata (Walsingham). Photos of adults and the genitalia are provided with brief comments on the distribution.     

Five new Liphistius species (Araneae, Mesothelae) from Thailand

In Schwendiger's (1998) paper on new liphistiid trapdoor spiders from Thailand the illustrations were produced in unusually poor quality. Due to unaccountable technical problems during printing, morphological details given in the illustrations were lost and the overall appearance of the paper became grossly unsatisfactory. To correct this, all figures in that article are reprinted on the following pages.     

Five new Liphistius species (Araneae, Mesothelae) from Thailand

Five new Liphistius species are described: L. lahu from northern Thailand, L. isan from northeastern Thailand, L. sayam from central Thailand, L. phileion from southeastern Thailand and L. phuketensis from southern Thailand. Liphistius thaleban Schwendinger is recorded from a new locality in southern Thailand. Notes on natural history are given, zoogeography and relationships between the species examined are discussed and four superspecies are distinguished within the trung -species group.     

Electrophysiology of trichobothria in orb-weaving spiders (Agelenidae,Araneae)

Summary Trichobothria of the house spidersTegenaria atrica (C.L. Koch) andTegenaria derhami (Scopoli) were stimulated by linear deflection of the hair from its resting position to one side. The pulse response of the receptor cell was analyzed. At angular deflection velocities of 10^–21 deg/ms the receptor begins to discharge at an angle of 3 degrees. While the mean pulse rate remains constant during deflections of 10^–210^–1deg/ms the pulse train may be interrupted by repeated breaks. Discharge continues when the hair is bent proximally beyond the bothrium edge. When the hair is bent distally and touches the bothrium edge, however, discharge ceases. Responsible for this phenomenon seems to be an asymmetry of hair suspension. — Repeated deflection leads to logarithmically ascending latency curves and logarithmically falling curves of the pulse numbers. The function coefficients depend on velocities and repetition rates of the deflections. The adaptational effect is heightened by preceding stationary deflection in the direction of the dynamical stimulus. The mean pulse rate as a function of hair deflection velocity increases logarithmically. The mean pulse rate as a function of hair movement direction obeys a cosine law, provided that a given velocity and a definite deflection angle are used.Supported by grants of the Deutsche Forschungsgemeinschaft given to Prof. Dr. P. Görner in the field of the Schwerpunktprogramm RezeptorphysiologieThe present paper is part of a doctoral thesis. My thanks are due to Prof. Dr. P. G6rner for the theme, many valuable discussions and his constant readiness to help.     

Acutipetala, gen. nov., a new genus of funnel-web spiders from northern Thailand (Araneae, Agelenidae)

A new funnel-web spider genus, Acutipetala, gen. nov., is erected to accommodate two new agelenid species known to occur in evergreen forests of northern Thailand: Acutipetala octoginta, sp. nov. (type species,male symbolfemale symbol) and A. donglini, sp. nov. (male symbol). The genus is established on the basis of the distinctive appearance of the genital structures, in which the median apophysis of the male palp is petal-shaped, sharply pointed, and strongly sclerotized, and the truncate embolus is short, originates subapically, and is provided with a hook-shaped apical portion.     

Mitochondrial differentiation, introgression and phylogeny of species in the Tegenaria atrica group (Araneae: Agelenidae)

The relationships between the three members of the Tegenaria atrica group ( T. atrica , T. saeva and T. gigantea ) were examined with DNA sequence data from mitochondrial CO1, 16S rRNA, tRNA^leu(CUN) and ND1 genes. Members of this group of large house spiders have overlapping distributions in western Europe and hybridize with each other to a variable degree. The close relatedness of all three species was supported by all analyses. T. saeva and T. gigantea are more closely affiliated than either is to T. atrica . Haplotypes clearly assignable to T. gigantea were also present in many specimens of T. saeva , suggesting asymmetrical introgression of mtDNA from T. gigantea into T. saeva . Molecular clock calibrations (CO1) suggest that deeper divisions within the genus Tegenaria may be in excess of 10 million years old, and that the evolutionary history of the T. atrica group has been moulded by Quaternary glacial–interglacial cycles.  © 2004 The Linnean Society of London, Biological Journal of the Linnean Society , 2004, 81 , 79–89.     

贵州龙角蛛属一新种记述(蜘蛛目:漏斗蛛科)

记述采自贵州黔东南苗族侗族自治州从江县太阳山龙角蛛属Draconarius一新种,镰刀龙角蛛Draconarius drepanoides sp.nov.。该新种近似于双龙角蛛D.bifarius Wang&Martens,2009,主要区别有:引导器末端腹面观时向后弯曲呈镰刀状(后者稍弯曲),中突腹面观时前端靠近盾板骨片(后者远离),膝节无突起(后者具一个较大的突起)。该新种还近似于镰状龙角蛛D.falcatus Xu&Li,2006,但可通过中突勺状(后者为一小且尖锐的突起)、无膝节突(后者具2个膝节突)和引导器末端不分叉(后者末端分叉)等特征区分。模式标本保存于西南大学生命科学学院。     

Five new genera of the subfamily Psilodercinae (Araneae:Ochyroceratidae) from Southeast Asia

Five new genera of the spider family Ochyroceratidae with remarkable palpal and epigynal characters are described:Luzonacera Li & Li,gen.nov.,Qiongocera Li & Li,gen.nov.,Relictocera Li & Li,gen.nov.,Sinoderces Li & Li,gen.nov.,and Thaiderces Li & Li,gen.nov.Six new species are described based on specimens collected in China,Philippines,Vietnam,and Thailand:Luzonacera chang Li & Li,sp.nov.,Luzonacera duan Li & Li,sp.nov.,Qiongocera hongjunensis Li & Li,sp.nov.,Relictocera qiyi Li & Li,sp.nov.,Sinoderces nawanensis Li & Li,sp.nov.,and Thaidercesjian Li & Li,sp.nov.In addition,two Psiloderces species are transferred to other genera:Sinoderces exilis (Wang & Li,2013) comb.nov.and Thaiderces vulgaris (Deeleman-Reinhold,1995) comb.nov.All type specimens are deposited in the Institute of Zoology,Chinese Academy of Sciences (IZCAS) in Beijing.     

Description of three liocranid spider species from Korea (Araneae: Liocranidae)

Three liocranid spider species are described with illustrations: a new species, Agroeca bonghwaensis n. sp. and two species new to Korean spider fauna, Agroeca montana Hayashi, 1986 and Scotina palliardii (Koch, 1881). The occurrence of the genus Scotina Menge, 1873 is also recorded from Korea for the first time.