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1.
单角新革螨雌雄螨描述(蜱螨亚纲:革螨股:寄螨科)   总被引:2,自引:0,他引:2  
单角新革螨 Neogamasus unicornutus ( Ewing,1 90 9)同物异名为岛屿新革螨 Neogamasusislandicus( Sellnick,1 94 0 ) ,其后若螨 [1 ]、前若螨及幼螨 [2 ]已有较详细描述 ,但雌螨和雄螨在所查到的文献中只记载有个别特征 ,没有完整描述 [1 ,3- 6] 。本文根据采自集安的标本 ,描述其雌螨和雄螨。文中测量单位为 μm,括号内为测量均值。单角新革螨 Neogamasusunicornutus(Ewing,190 9)雌螨 (图 1 - 7)体黄色 ,卵圆形 ,长 6 78- 70 1 ( 6 89) ,宽 36 8- 41 4 ( 394 )。背板几乎覆盖整个背面 ,后部留狭窄裸露区。前背板长 345- 356 ( 349) ,…  相似文献   

2.
乳突寄螨雌螨描述(蜱螨亚纲: 革螨股: 寄螨科)   总被引:2,自引:1,他引:1  
乳突寄螨 Parasitus mammillatus ( Berlese,1 90 4 )雌螨 ,在所查到的文献中 ,仅记载有生殖区、头盖和螯钳的形状 [1 ,2 ] ,无其它描述。国内根据丹东标本曾描述该螨雄螨和后若螨 [3] 。本文根据朝鲜标本详细描述其雌螨。文中测量单位为 μm,括号内为测量均值。图 1- 7 乳突寄螨 Parasitus mammillatus (Berlese)1.背面 ;2 .腹面 ;3.头盖 ;4 .螯钳 ;5 .颚角 ;6 .须肢 ;7.跗节 乳突寄螨 Parasitus mammillatus ( Berlese,1 90 4 )雌螨 (图 1 - 7)体黄色 ,卵圆形 ,长 71 2 - 793( 758) ,宽 4 0 2 - 483( 4 50 )。背板覆盖整个背面 ,前背…  相似文献   

3.
峰革赛螨幼若螨描述(蜱螨亚纲:革螨股:胭螨科)   总被引:1,自引:0,他引:1  
在所查到的献中,峰革赛螨Gamasellus montanus(Willmann,1936)仅描述了雌和雄螨(BpereToBa和Щep5aK,1977),本描述其后若螨、前若螨和幼螨。中测量单位为μm,括号内为测量均值。  相似文献   

4.
本文记录1996年马丹梅采自辽宁省丹东市土壤中的革螨。其中乳突寄螨Parasitusmam-millatus(Berlese,1904),在已查到的文献中仅Micherdzinski(1969)记载了雌螨和雄螨,但他描述的雄螨并不是乳突寄螨,而是季氏寄螨ParasitustichomiroviDavydova,1971。文中也未描述成螨前各期。今根据丹东标本描述乳突寄螨的雄螨及后若螨。文中测量单位为μm。1.茅舍血厉螨Haemolaelapscasalis(Berlese,1887)标本6♀♀,1♂,3后若螨。世界性分布。2.矮肛厉螨Proctolaelapspygmaeus(Müller,1860)标本3♀♀。过去记载国内分布于江西、云南。3.美丽革伊螨Gamas…  相似文献   

5.
亚洲革板螨(Gamasholaspis asiaticus Petrova,1967)在所查到的文献中仅描述了雌螨[1],本文描述其雄螨和后若螨. 文中测量单位为μm,括号内为测量均值. 亚洲革板螨(Gamasholaspis asiaticus Petrova,1967) 雄螨(图1):体黄色,椭圆形,长宽,一标本为804×540,另一标本为689×425.背板覆盖整个背面,具29对光滑长毛,末端远超过下位毛基部.胸前板1对,发达,楔形.  相似文献   

6.
乌苏里土厉螨 Ololaelaps ussuriensis Bregetova et Koroleva,1 96 4和维内土厉螨 Ololaelapsveneta( Berlese,1 90 3)在所查到的文献中仅描述了雌螨和雄螨[1 ,2 ] ,本文描述其若螨。文中测量单位为μm,括号内为测量均值。1乌苏里土厉螨 Ololaelapsussuriensis Bregetova et Koroleva,1964  形态描述 后若螨 (图 1 - 3)体黄色 ,近圆形 ,长宽 51 7- 6 55× 4 0 2 - 540 ( 577× 4 6 6 )。背板覆盖整个或几乎整个背面 ,有深而狭的侧切口。背板前区有毛 1 9对 ,后区 1 4对 ,均细小 ,另有若干对小圆孔。胸板长 2 30 - 2 6 4( 2 37) ,St2…  相似文献   

7.
孟氏新革螨Neogamasus mengyangchunae(Ma)过去已描述雌、雄和后若螨,今描述其前若螨。  相似文献   

8.
报道自朝鲜入境货物中采得革螨4种和尾足螨1种,说明朝鲜有这些螨的分布,并描述巴氏尾足螨Uropoda baloghi Hirschmann et Zirngiebl-Nicol, 1969雄螨。  相似文献   

9.
宁夏拟厉螨Laetaspis ningxiaensis Bai et Gu,1994过去曾描述雌(白学礼,顾以铭,1994)和雄螨(马立名,1995);松江下盾螨Hypoaspis sungarls Ma,1996曾描述雌、雄和后若螨(马立名,1996)。本描述二个种的前若螨。  相似文献   

10.
在所查到的献中,多变革板螨(Gamasholaspis variabilis Petrova,1967)已描述了雌螨、前若螨和幼螨,本描述其雄螨和后若螨。中测量单位为μm,括号内为测量均值。  相似文献   

11.
Among non-canonical DNA secondary structures, G-quadruplexes are currently widely studied because of their probable involvement in many pivotal biological roles, and for their potential use in nanotechnology. The overall quadruplex scaffold can exhibit several morphologies through intramolecular or intermolecular organization of G-rich oligodeoxyribonucleic acid strands. In particular, several G-rich strands can form higher order assemblies by multimerization between several G-quadruplex units. Here, we report on the identification of a novel dimerization pathway. Our Nuclear magnetic resonance, circular dichroism, UV, gel electrophoresis and mass spectrometry studies on the DNA sequence dCGGTGGT demonstrate that this sequence forms an octamer when annealed in presence of K(+) or NH(4)(+) ions, through the 5'-5' stacking of two tetramolecular G-quadruplex subunits via unusual G(:C):G(:C):G(:C):G(:C) octads.  相似文献   

12.
The aim of the present study was to assess the effect of six different temperatures on the development of Acarophenax lacunatus (Cross & Krantz) using eggs of Tribolium castaneum (Herbst) and Cryptolestes ferrugineus (Stephens) as hosts. The temperature affected the development of A. lacunatus. The largest values for the progeny (19 mites in T. castaneum and 15 mites in C. ferrugineus) were obtained at about 30 degrees C, as also observed for the net reproductive rate (Ro), which revealed that the A. lacunatus population increased 18 times in T. castaneum and 14 times in C. ferrugineus in a generation. The intrinsic rate of increase (r m) gradually increased with temperature, reaching the maximum value at 35 degrees C in T. castaneum (1,608) and C. ferrugineus (1,289). The generation time was negatively correlated with temperature, ranging from 1,60 to 4,85 days in T. castaneum and from 1,96 to 5,34 days in C. ferrugineus. These results suggest that the mite A. lacunatus may be used in programs of biological control of T. castaneum and C. ferrugineus in the tropics.  相似文献   

13.
With the aim of identifying the species of nasal mites of Paroaria coronata (red-crested cardinal), the nasal cavity of 40 birds were examined. The nasal mites were identified as Ptilonyssus sairae de Castro and Sternostoma pirangae Pence, with 50% and 7.5% of prevalence, respectively. This is the first record of these mite species parasitizing P. coronata. This report also amplifies the area of occurrence of S. pirangae for Brazil and that of P. sairae for Rio Grande do Sul, Brazil.  相似文献   

14.
The interaction between Acarophenax lacunatus (Cross & Krantz) and Anisopteromalus calandrae (Howard) may be a promising tool for the integrated pest management of stored grain insect pests. The objective of this study was to evaluate the compatibility of these two natural enemies on Rhyzopertha dominica (Fabricius). The experimental units were petri dishes (140 x 10 mm) containing 30 g of whole wheat grains (13% water content) infested with 20 adults of R. dominica. The treatments consisted of inoculation of A. lacunatus and A. calandrae, separately and associated, in eight replicates. Three inoculations of five adult females of the natural enemies were carried out in each petri dish at five, ten and fifteen days after the infestation of R. dominica. All treatments were stored during 60 days in environmental chamber at 30 +/- 1 degrees C, 60 +/- 5% relative humidity and 24 h scotophase. The smallest numbers of physogastric females of A. lacunatus and of adults of A. calandrae were obtained when the natural enemies were in association. The use of A. calandrae alone demonstrated a low instantaneous rate of increase (r(i)) of R. dominica and a high protection of the wheat grains. The association of A. calandrae with A. lacunatus led to the lowest number of immatures of R. dominica. These results demonstrate the importance of this interaction as a tool of for the integrated management of R. dominica in stored wheat grains.  相似文献   

15.
2012年在西藏普兰地区采集到鞘翅目Coleoptera拟步甲科Tenebrionidae刺甲族Platyscelidini一种昆虫:形宽刺甲Bioramix(Bioramix)rotundicollis(Kaszab,1940)。鉴于原始描述过于简单,且缺少特征图和整体照片,本文对其进行了详细描述,并附有特征图和整体照片。检视标本保存于西华师范大学标本馆和俄罗斯楚瓦什国立师范大学标本馆。  相似文献   

16.
The biology of the fruit fly Bactrocera tau, an important horticultural pest, was studied under laboratory conditions at 25°C and 60–70% relative humidity on Cucurbita maxima. The duration of mating averaged 408.03 ± 235.93 min. After mating, the female fly had a preoviposition period of 11.7 ± 4.49 days. The oviposition rate was 9.9 ± 8.50 eggs and fecundity was 464.6 ± 67.98 eggs/female. Eggs were elliptical, smooth and shiny white, turning darker as hatching approached, and measured 1.30 ± 0.07 mm × 0.24 ± 0.04 mm. The chorion has polygonal microsculpturing and is species-specific with polygonal walls. The egg period lasts for 1.3 ± 0.41 days. The duration of the larval period is 1.2 ± 0.42, 1.7 ± 0.48 and 4.0 ± 0.94 days for first, second and third instars, respectively. Pupation occurs in the sand or soil and pupal periods are 7.0 ± 0.47 days. The life cycle from egg to adult was completed in 14.2 ± 1.69 days; the longevity of mated females and males was 130.33 ± 14.18 and 104.66 ± 31.21 days, respectively. At least two to three generations were observed from June 2008 to June 2009.  相似文献   

17.
We first record Carcinops troglodytes (Paykull) as a predator of Alphitobius diaperinus (Panzer) larvae in poultry houses in North and Northwest regions of the state of Paraná. Carcinops spp. are commonly recorded as predators of dipterans, and this record in poultry houses indicates the possibility of exploiting such predator for future studies aiming the development of management strategies for A. diaperinus.  相似文献   

18.
在实验条件下,系统研究了芬兰真绥螨Euseius finlandicus Oudemans对苹果全爪螨Panony-chus ulmi Koch的控制能力。研究结果表明:(1)在15~32℃的温度条件下,芬兰真绥螨雌成螨的捕食量随着温度的上升呈线型正相关。在15~25℃的温度内芬兰真绥螨的产卵量随温度升高而增加,在15℃下平均单雌产卵0.42粒,25℃时平均单雌产卵2.56粒;当温度升到32℃时单雌产卵下降为1.62粒,雌成螨的产卵量与温度的关系呈抛物线型。(2)在5~15头/叶的猎物密度下,雌成螨的捕食量随着猎物的密度增加呈线型正相关,而当猎物密度达到30头/叶时,芬兰真绥螨雌成螨的捕食量处于平稳状态。在5~15头/叶的猎物密度下,芬兰真绥螨的产卵量和产卵量均与猎物的密度呈线型正相关;当每头雌成螨捕食量为1.8~3.5头时,产卵量为1.0~1.5粒。(3)不同温度下,芬兰真绥螨对猎物的不同密度和虫态的功能反应可用圆盘方程II型进行拟合;在25℃条件下捕食效率最高且喜好捕食的虫态是卵和幼螨。  相似文献   

19.
小黑瓢虫对高氏瘤粉虱捕食作用的研究   总被引:6,自引:1,他引:5  
在高氏瘤粉虱不同虫态共存的条件下,小黑标虫对高氏瘤粉虱各虫态的选择次序为卵>1龄若虫>2龄若虫>3龄若虫>4龄若虫和拟蛹,对卵的捕食率均最高,有明显的嗜好选择;小黑瓢虫幼虫捕食粉虱卵的数量,随着龄期的增长而递增,其中4龄幼虫的捕食量最大,4龄期捕食量平均为1565.42粒,占全幼虫期总食卵量的45.42%,整个幼虫期可捕食高氏瘤粉虱的卵数平均为3446.5粒。小黑瓢虫3龄幼虫对粉虱卵的捕食作用率在所给的猎物密度(1500粒/皿)条件下,随着自身密度的增加而降低。  相似文献   

20.
Eight specimens of Sericolophus reflexus (Ijima) were compared with the holotype of Hernandeziana ijimae (Hernandez) to assess suspected synonymy of these taxa. An extensive morphometric analysis of the spicules available in these specimens of variable condition show that the H. ijimae holotype exhibits characters near the centre of the range of S. reflexus. It is concluded that H. ijimae is a junior synonym of S. reflexus , and that the family Corythophoridae de Laubenfels is invalid by preoccupation of its base generic name.  相似文献   

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