中国重庆弱斑蛛属蜘蛛一新种记述(蜘蛛目：卵形蛛科)励志网名大全
佟艳丰;何佳慧;李枢强
【摘 要】南宋爱国诗人记述了采自重庆江津区的卵形蛛科弱斑蛛属一新种:周家岩弱斑蛛Ischnoth yreuszhoujiayan Tong&v.新种雄性螯肢具突起,与分布于安徽的鞭形弱斑蛛Ⅰ.flagellichelis Xu,1989及分布在海南的镰形弱斑蛛Ⅰ.falcatus Tong&Li,2008相似,但是该种螯肢突起呈分叉状,与雌性生殖区具较大的钟形的交媾腔等可相区别.模式标本保存在沈阳师范大学昆虫标本馆.%One new species of the genus Ischnothyreus Simon,1893,Ⅰ.zhoujiayan Tong & v.,is described from Chongqing,China.The new species is similar to Ⅰ.flagellichelis Xu,1989 in Anhui and Ⅰ.falcatus Tong & Li,2008 in Hainan,but can be distinguished from the latter two species by the strongly,forked shaped process on male chelicerae and the large,bell-shaped atrium in the female genital area.The type materials were prerved in the Inct Collection of Shenyang Normal University (SYNU).
【期刊名称】《沈阳师范大学学报（自然科学版）》
【年(卷),期】2018(036)001
【总页数】6页(P10-15)
【关键词】蜘蛛目;新种;分类;生殖器;重庆
【作 者】佟艳丰;何佳慧;李枢强
【作者单位】沈阳师范大学生命科学学院,沈阳110034;中国科学院东南亚生物多样性研究中心,内比都耶津05282,缅甸;沈阳师范大学生命科学学院,沈阳110034;中国科学院动物研究所,北京100101
【正文语种】中 文
【中图分类】Q959.226
0 Introduction
Oonopidae are very small (≤3 mm), free-living, mostly ground-dwelling spiders. They are haplogyne and usually have six eyes, which are grouped clo together[1]. The Oonopidae are an extremely diver spider family, with currently 1780 described species
in 114 genera[2]. They occur on all continents but are most abundant and diver in the tropics and subtropics[3]. Oonopids are found in very diver habitat types, such as leaf litter, tree canopy, under bark or in dead wood and some are even adapted to special habitats such as bird or ant nests or termite mounts[4].
The genus Ischnothyreus is one of the largest genera in the family Oonopidae, with 104 valid specific names recorded worldwide, but the prently recognized species may reprent only a small fraction of the actual biodiversity[5-6]. The genus Ischnothyreus can be recognized by the prence of leg spines, the usually small abdominal scutum, the strongly sclerotized male palps, the heavily sclerotized male endites and the winding genital tube in the females[7].
The fauna of Ischnothyreus in China have been poorly studied, only 14 species of this genus were reported from China previously. Among the 14 species, I.yueluensis was recorded in Hunan[8], I.linzhiensis was recorded in Tibet[9], I.flagellichelis was recorded in Anhui[10], I.kentingensis, I.narutomii and I.peltifer were recorded in Taiwan[11-12], I.nar
utomii, I.peltifer and the other eight endemic species were recorded in Hainan[13-15].
Here we prent one additional new species, collected from Chongqing Municipality. It is the first time this genus recorded from Chongqing.
人与动物的关系>消磨时间英语血虚的症状有哪些1 Material and methods
The specimens were examined using a Leica M205C stereomicroscope. Details were studied under an Olympus BX51 compound microscope. Photos were made with a Canon EOS 550D zoom digital camera (18 megapixels) mounted on an Olympus BX51 compound microscope. Vulvae were cleared in lactic acid.For scanning electron microscopy (SEM), specimens were air-dried, and without gold coating. Pictures were taken with a Hitachi TM3030. All measurements were taken using an Olympus BX51 compound microscope and are in millimeters.
附近公园>微博背景图The following abbreviations are ud in the text: ALE=anterior lateral eyes; PLE=posterior lateral eyes; PME=posterior median eyes.
All specimens are deposited in Shenyang Normal University(SYNU) in Shenyang, China.
2 Results
Ischnothyreus zhoujiayan Tong & Li, sp. nov.
Type materials. Holotype: male(SYNU-206), sifting leaf litter, Zhoujiayan Village, Yongxing Town, Jiangjin District, Chongqing Municipality, 106°14′3.840″E, 28°54′36.876″N, 518.700 m, October 18, 2014, leg. Y. Tong. Paratypes: 1 male, 3 females(SYNU-206), same data as holotype.
Etymology. The specific name is a noun in apposition taken from the type locality.
Diagnosis. The new species is similar to I.flagellichelis Xu, 1989 and I.falcatus Tong & Li, 2008, but can be distinguished by the strongly, forked shaped process on male chelicerae (Fig.2) and the large, bell-shaped atrium in the female genital area (Fig.5h,5i,5j).
Description. Male(holotype). Total length 1.72; carapace 0.85 length, 0.71 width; abdomen 0.87 length, 0.62 width. Habitus as in Fig.1a,1b,1c. Carapace: yellow, dark brown on lateral and posterior surfaces, with brown egg-shaped patches behind eyes, ovoid in dorsal view, strongly elevated in lateral view, surface of elevated portion of pars cephalica smooth, sides finely reticulate, fovea abnt, lateral margin straight, smooth(Fig.1d,1f). Clypeus: straight in frontal view, vertical in lateral view, ALE parated from edge of carapace by their diameter or more. Eyes: six, well developed, ALE largest, ALE circular, PME and PLE oval, posterior eye row straight from above, procurved from front, ALE parated by less than their radius, ALE-PLE parated by less than ALE radius, PME touching, PLE-PME touching(Fig.1d,1g). Sternum: longer than wide, pale orange, uniform, not fud to carapace, surface smooth, tae spar. Mouthparts: chelicerae, endites and labium orange. Chelicerae straight, with slightly sclerotized process(ssp) at ba of fangs and one very strong, fork like process(flp) in the middle of the laterodorsal surface, fang groove with a few small and one larger denticles(Fig.2). Labium rectangular, fud to sternum, anterior margin not indented at middle. Anteromedi曾喆
an tip of endites with one strong, tooth-like projection(stp in Fig.1e). Abdomen: ovoid, rounded posteriorly. Posterior spiracles not connected by groove. Pedicel tube short, ribbed, scutum not extending far dorsal of pedicel. Dorsal scutum well sclerotized, pale orange, covering 2/3 of abdomen width and approximately 3/4 of abdomen length, not fud to epigastric scutum, middle surface and sides smooth. Epigastric and postepigastric scutum well sclerotized, pale orange, fud, without posteriorly directed lateral apodemes. Dorsum tae prent, light, needle-like. Legs: pale orange, femur Ⅰ with two prolateral spines, tibia Ⅰ with four pairs, metatarsus Ⅰ with two pairs of long ventral spines. Leg Ⅱ lost. Legs Ⅲ and Ⅳ spineless(Fig.3). Genitalia: epigastric region with sperm pore large sized, circular, situated at level of anterior spiracles. Palp strongly sclerotized, right and left palps symmetrical, trochanter with ventral projection(vp), cymbium brown, fud with bulb, bulb brown, more than two times as long as cymbium, tapering apically, with two small ventral protuberances(vpr), distal part elongated, with membranous leaf-shaped apophys (lsa) (Fig.4).
