共查询到20条相似文献,搜索用时 125 毫秒
1.
2.
灰钝额斑螟Bazaria turensis Ragonot是柴达木盆地白刺(Nitraria sp.)灌丛的主要害虫,为了有效控制该害虫对白刺的危害,采用室内饲养和田间定点观察,对灰钝额斑螟进行了生物学特性观察。结果表明灰钝额斑螟在柴达木盆地1年发生1代,有卵、幼虫、蛹和成虫4种虫态,通过头壳宽确定了幼虫为5个虫龄,以滞育蛹越冬。翌年5月中旬开始羽化,5月下旬为羽化高峰期,6月中旬孵化,6月下旬为孵化盛期,8月上旬开始结茧化蛹,8月中旬结茧化蛹高峰期,随后蛹进入滞育越冬。6月下旬初龄幼虫发生盛期是该害虫防治的最佳时期。 相似文献
3.
首次报道了中国新纪录属——腹刺野螟属Anamalaia MunroeMutuura,1969的分布。记述了2新种:尖突腹刺野螟A.acerisella Li sp.nov.和圆突腹刺野螟A.obtusisella Li sp.nov.。提供了新种的鉴别特征及成虫和外生殖器特征图。 相似文献
4.
记述中国扇野螟属三条扇野螟Pleuroptya chlorophanta、枇杷扇野螟P.balteata、四斑扇野螟P.quadrimaculalis、淡黄扇野螟P.sabinusalis等4种老熟幼虫的的形态特征且提供幼虫的形态特征图,并给出基于幼虫的生物学习性。 相似文献
5.
中国蛀果斑螟属分类研究(鳞翅目:螟蛾科:斑螟亚科) 总被引:6,自引:0,他引:6
对中国蛀果斑螟属Assara Walker进行了系统研究,结果表明我国该属有昆虫共11种;突蛀果斑螟As-sara tumidula sp.nov,该种与白斑蛀果斑螟A.korbi(Caradja)相似,两者前翅后缘中部都有一白斑,但新种沿前翅前缘仅有一块白色区域,雄性外生殖器抱器瓣末端略微膨大,呈指状,阳茎端基环两侧臂锥形,雌性外生殖器第8腹节的长大于宽,后表皮突达第8腹节前缘,囊导管端部1/3加宽;蔺江蛀果斑螟A.linjiangensis sp.nov,该种与仓白蛀果斑螟A.palliaella Yamanaka在外形上相似,但前翅有3个黑色圆点,亚外缘线模糊,雌性外生殖器的后表皮突仅达第8腹节后缘,囊突新月形;苍白蛀果斑螟A.pallidella Yamanaka,中国新纪录种;井上蛀果斑螟A.inouei Yamanaka,中国新纪录种;芒果蛀果斑螟A.seminivalis(Turner)中国新纪录种寄主是芒果Mangifera indicaL.和银叶树Heritiera littoralis Aiton;白斑蛀果斑螟A.korbi(Caradja)取食鸦胆子Rhus javanica(L.)上的五倍子;丽江蛀果斑螟A.incredibilis Roesler;黑松蛀果斑螟A.funerella(Ragonot)寄主为黑松Pinus thunbergii Parl;松蛀果斑螟A.hoeneella Roesler寄主马尾松Pinus massoniana Lamb;台湾蛀果斑螟A.formosana Yoshiyasu取食栓叶安息香Styrax suberifolia Hook.et Arn,上蚜虫的虫瘿;白缘蛀果斑螟A.albicostalis Walker。文中编制了中国蛀果斑螟属的分种检索表,并提供了新种和新纪录种的外生殖器特征图,研究标本包括新种模式标本保存在南开大学生物系。 相似文献
6.
对重要食菌昆虫———弯胫大轴甲Promethis valgipes valgipes(Marseul)的幼虫和蛹的形态特征进行了详细描述。老熟幼虫伪形,体长达45mm,肛节锥形,有黑褐色尾突2枚、锥刺约10枚。蛹长25~32mm,宽8~9mm,体略扁,腹部每节两侧有1侧突,其由2~4枚角突组成并呈扇形排列;肛节背面有2枚尾突,腹面有2个小刺突群。电镜下可见成虫复眼的小眼面呈六边形;触角从第5节到末节的腔锥形感器数量明显增多;口器具毛形感器和栓锥形感器;鞘翅反面有中侧斑、基侧斑和基中斑等特征;后翅均布短刺;外生殖器有多种毛形感器。文中给出了感器及体表附属物的电镜照片。 相似文献
7.
8.
本文详细记述了中国丛螟亚科樟叶瘤丛螟Orthaga achatina Butler,橄榄锄须丛螟Macalla sp.和漆树缀叶丛螟Locastra muscosalis(Walker)幼虫的形态特征,并绘制了形态特征图,记述了为害习性。所有标本均保存在中国计量学院生命科学学院标本室。 相似文献
9.
水生鳞翅类——螟蛾科水螟亚科 总被引:3,自引:2,他引:1
从成虫、卵、幼虫、蛹及生物学等方面介绍了鳞翅目的主要水生类群———螟蛾科水螟亚科Nymphulinae的主要特征及其幼虫的主要生活类型。水螟幼虫的生活型可分为Nymphula型、Parapoynx型、Potamomusa型、Eoophyla型和Nymphicula型。各生活型的主要类群及生活特征也予以说明。目的是为了使读者对该类群有正确的认识,以引起人们的重视。 相似文献
10.
11.
12.
13.
An unusual new species of green lacewing (Neuroptera: Chrysopidae: Semachrysa jadesp. n.) is described from Selangor (Malaysia) as a joint discovery by citizen scientist and professional taxonomists. The incidental nature of this discovery is underscored by the fact that the species was initially photographed and then released, with images subsequently posted to an online image database. It was not until the images in the database were randomly examined by the professional taxonomists that it was determined that the species was in fact new. A subsequent specimen was collected at the same locality and is described herein along with another specimen identified from nearby Sabah. 相似文献
14.
兽类和鸟类多样性的监测是生物多样性保护中的重要一环。2017年4月至2018年5月,按照网格法在位于陕西省西安市周至县的老县城国家级自然保护区布设了36台红外相机,对保护区内大中型兽类和林下鸟类多样性进行调查。累积7 835个相机工作日,获得野生动物独立有效照片1 915张,共鉴定出32种鸟类和兽类物种,隶属8目18科,其中被IUCN红色名录评估为濒危(EN)、易危(VU)和近危(NT)的物种分别有2种、4种和3种。相对丰富度指数最高的为羚牛(Budorcas taxicolor)(IRA=36.81);夏季(7.68)和秋季(7.81)物种拍摄率大于春季(4.65)和冬季(4.30),不同季节拍摄到的物种数和物种多样性指数差异不显著。不同海拔段物种拍摄率、物种数和物种多样性指数均不具有明显差异。濒危物种中的羚牛不同海拔段拍摄率存在明显差异。主成分分析表明,拍摄物种与相机位点之间相关性较强,这与相机位点附近的生境条件有关。研究结果初步掌握了老县城保护区内大中型兽类和林下鸟类种类组成、相对多度及分布状况,为未来保护区野生动物资源保护和管理提供基础资料。 相似文献
15.
To determine whether Hudson Bay-Foxe Basin bowhead whales segregate on the basis of age, whales summering in northern Foxe Basin, were aerially photographed in August of 1996, 1997, and 1998. Image lengths on either the negatives or contact prints were measured and total body lengths were estimated. In all three years the majority of whales photographed were ≤13.5 m long. Calves and juveniles made up 89.3%, 96.6%, and 79.3% of the total number of measured whales in 1996 (n = 28), 1997 (n = 30) and 1998 (n = 29) respectively. The number of bowheads >13.5 m, the approximate size at which females reach sexual maturity, that were photographed was directly proportional to the number of calves photographed. Our results indicate that northern Foxe Basin bowheads are part of a more widely distributed stock. Adult males and resting adult females apparently summer in another part of the range, probably northwestern Hudson Bay. Northern Foxe Basin appears to be used as a summer feeding area by cows with young-of-the-year calves and by juveniles. 相似文献
16.
本文对黑龙江省低额属Simocephalus的种类及分布进行了初步的调查。鉴定出低额9种,即锯顶低额Simocephalusserrulatus,老年低额S.vetulus,拟老年低额S.vetuloides,棘爪低额S.exsfinosus,西伯利亚低额S.sibiricus,角壳低额S.lusaticus,微齿低额S.himalayensismicrodus,黑龙江低额S.heilongjtangensis和北安低额S.beianensis。对各种低额的形态特征及分布特点作了概括并编制了种的检索表。对所述各种的模式形态及已获种中雄体的精子形态提供活体照片。对部分低额生活环境中的几种主要因子进行了测试,其结果表明,本属各种多生活在水质清洁溶解氧较高且偏碱的水环境中,其水质多在寡污到β中污之间。 相似文献
17.
W. D. J. Kirk 《Journal of Zoology》1985,207(2):181-190
The hatching of eggs of thrips (Insecta: Thysanoptera) was investigated for three thripids, Thrips tabuci Lindeman, Frankliniella fusca (Hinds) and Kakothrips pisivorus (Westwood), and for a phlaeothripid, Haplothrips leucanthemi (Schrank). An embryonic cuticle with hatching spines was found in these thripids, and distinct lids were discovered on eggs of the first two species of thripid. At least one species of phlaeothripid lacks hatching spines. Haplothrips leucanthemi eggs did not have a distinct lid; the eggs split along lines of weakness following the pattern left by the follicle cells.
Kakothrips pisivorus was observed and photographed during hatching. The larva emerged most of the way out of the egg while still enclosed in embryonic cuticle. Expansion and contraction of the pronotum split the embryonic cuticle, which was then forced down to the tip of the abdomen by peristaltic movements, freeing in turn the antennae and legs. The embryonic cuticle was left poking out of the oviposition hole. 相似文献
Kakothrips pisivorus was observed and photographed during hatching. The larva emerged most of the way out of the egg while still enclosed in embryonic cuticle. Expansion and contraction of the pronotum split the embryonic cuticle, which was then forced down to the tip of the abdomen by peristaltic movements, freeing in turn the antennae and legs. The embryonic cuticle was left poking out of the oviposition hole. 相似文献
18.
House morphology and mechanisms of feeding in the Oikopleuridae (Tunicata, Appendicularia) 总被引:1,自引:0,他引:1
The house morphology and feeding behaviour of seven species of appendicularians was observed and photographed in the field. Details of house morphology varied greatly among species. New information on the pattern of water flow through the house and on mechanisms of food collection are presented. Flow rates through the house, ranging from 36 to 1400 ml/hour, may result in substantial depletion of phytoplankton locally. 相似文献
19.
2012年8月至2013年11月,在15 hm2弄岗森林动态监测样地及其周边地区以1台/2 hm2密度布设了35台红外相机,对研究区域内大中型兽类和林下鸟类资源进行连续监测。共记录到20种兽类和26种鸟类,包括2种国家I级、8种国家II级重点保护野生动物。其中,小泡巨鼠(Leopoldamys edwardsi)、帚尾豪猪(Atherurus macrourus)、赤腹松鼠(Callosciurus erythraeus)、北树鼩(Tupaia belangeri)、赤麂(Muntiacus muntjak)等5种动物拍摄率和相对丰富度均居于兽类的前5位;白鹇(Lophura nycthemera)、橙头地鸫(Zoothera citrina)和蓝背八色鸫(Pitta soror)的相对丰富度居于鸟类的前3位。虽然每月监测的鸟兽种数、多样性指数和均匀度指数均不存在显著的季节性差异,但不同季节记录到的兽类和鸟类种类存在一定差异:黑叶猴(Trachypithecus francoisi)、野猪(Sus scrofa)2种兽类和斑头鸺鹠(Glaucidium cuculoides)、长尾阔嘴鸟(Psarisomus dalhousiae)、红胁蓝尾鸲(Tarsiger cyanurus)3种鸟类仅在旱季记录到;而仙八色鸫(Pitta nympha)和凤头鹰(Accipiter trivirgatus)2种鸟类仅在雨季记录到。活动节律分析结果表明赤麂、北树鼩、赤腹松鼠和白鹇为昼行性动物,帚尾豪猪与小泡巨鼠为夜行性动物。以上研究结果有助于监测喀斯特生境大中型兽类和林下鸟类种群的变化,为保护区有效管理提供数据支持。 相似文献