中国跳小蜂科二新记录种

绵粉蚧长索跳小蜂Anagyrus schoenherri Westwood中国新记录 雌:体长1.6—2.0毫米.体色黄白色.复眼黑色,单眼红色.触角除柄节中部和两端、梗节基部、索节1—5节及第6节背面褐色外,金黄白色.上颚黄白色,端部褐色.足黄色,跗节浅褐色,爪褐色.翅透明,翅脉褐色.头横形.上颚2齿,下颚须4节,下唇须3节.单眼钝三角形排列。触角短于头胸长度之和,着生于口缘,柄节强度扁化,中部下缘膨大,长约为宽的3倍左右,梗节约与第1索节等长,长约为宽的2倍,索节6节,各节约等长,棒     

四突跳小蜂亚科二中国新记录属二新种（膜翅目：跳小蜂科）

报道了采自辽宁阜新,黑龙江镜泊湖和云南昆明的跳小蜂,即阔柄杜丝跳小蜂,新种Dusmetia latiscapa Xu,sp．nov、云南蚧狼跳小蜂,新种Gyranusoidea yunnanensis Xu,sp．nov．。对新种进行了详细描述。本也是杜丝跳小蜂属Dusmetia Mercet和蚧狼跳小蜂属Gyranusoidea Compere在我国分布的首次记录。阔柄杜丝跳小蜂,新种Dusmetia latiscapa Xu,sp．nov．寄主：粉蚧。分布：黑龙江(镜泊湖),辽宁(阜新)。本种与Dusmetia cardinalis Hoffer,1969相似,有以下几点区别：(1)本种索节第4节端部和第5、6节为白色,后索节3-6节为白色;(2)本种柄节长为宽的2．7倍,后柄节长为宽的5倍;(3)本种前翅完全退化,呈翅芽状,后前翅退化,末端尖;(4)前头胸腹呈现黑褐色,后呈红褐色。云南蚧狼跳小蜂,新种Gyranusoidea yunnanensis Xu,sp．nov．寄主：粉蚧。分布：云南(昆明)。本新种与Gyranusoidea hecale Noyes et Hayat 1988很相似,主要区别是新种：(1)触角窝与复眼之间有1褐色斑,后触角窝与复眼之间有1褐色线相连;(2)触角柄节细长,长为最宽处的5倍,后柄节膨大,长为最宽处的2．5—2．8倍;(3)触角柄节近端无白色环斑,后触角柄节近端有白色环斑。     

跳小蜂科中国两新记录种

夜蛾跳小蜂Litomastix maculata Ishii ♀:体长0.8毫米左右。通常黑色:中胸盾和小盾片末端有绿色闪光;三角片、小盾片和中胸侧板稍有紫色闪光。触角柄节细长,约为梗节与第一至三索节长之和;梗节长大于宽,长为第一至三索节长之和;索节6节,第一索节长、宽相等。余节渐向端部增宽:棒节紧密,斜截,其长为端部5索节长之和(图1)。翅透明,缘脉附近有1暗色小斑。足胫节基部、前、中足腿节端部、中足跗节和距黄白色;其余为黑褐色或黄褐色,跗节末端褐色,小盾片基半部有1凹槽。腹部短,只及胸部长之半,末端尖。 寄主:斜纹夜蛾Prodenia litura Fabricius,银纹夜蛾Plusia agnata Standinger。     

阔柄跳小蜂属一新种(膜翅目,跳小蜂科)

记述了阔柄跳小蜂属Metaphycus 1新种,阿土阔柄跳小蜂Metaphycus aretus sp.nov.(膜翅目,跳小蜂科),并提供了新种的主要形态特征图.阿土阔柄跳小蜂属于zebratus种团,与M.maculipennis形态相似,但该种柄节外侧除白色背脊外,中间无白色条带;前额宽约为1/3头宽;产卵器长约为第3产卵瓣长5.5 ～5.9倍.研究标本保存在中国科学院动物研究所国家动物标本馆.     

中国突唇跳小蜂属一新种(膜翅目:跳小蜂科)

突唇跳小蜂属全世界已知２９种,分布于世界各地,寄生膜翅目的木蜂科Ｘｙｌｏｃｏｐｉ－ｄａｅ、蜜蜂科Ａｐｉｄａｅ和叶舌花蜂科Ｈｙｌａｅｉｄａｅ的幼虫,行多胚生殖。我国过去未见报道。本文报道从黑龙江伊春采集的突唇跳小蜂属１新种,即锤角突唇跳小蜂,Ｃｏｅｌｏｐｅｎ－ｃｙｒｔｕｓｃｌａｖｉｇｅｒ,ｓｐ．ｎｏｖ．,对新种进行了详细描述,并附特征图。本文也是突唇跳小蜂属在我国分布的首次记录。模式标本存放在浙江大学植物保护系。锤角突唇跳小蜂Ｃｏｅｌｏｐｅｎｃｙｒｔｕｓｃｌａｖｉｇｅｒ,新种（图１～４）标本记录：正模♀,黑龙江伊春（４７°４２′Ｎ,１２８°５４′Ｅ）,１９８１－Ⅶ,金丽元,原始记录寄主为落叶松毛虫卵（？）,８５０２１８;副模４♀♀,同正模。鉴别特征：本种与ＣｏｅｌｏｐｅｎｃｙｒｔｕｓａｒｅｎａｒｉｕｓＥｒｄｏｅｓ很相似,主要区别是：１）触角棒节长为宽的１．４倍,索节第３～４节上有感觉孔,后者棒节长为宽的２．０倍;索节第３～４节无感觉孔;２）上颚明显长,后者上颚短;３）中足胫节末端、各足跗节第１～４节浅黄白色,第５节褐色,产卵管黑色,后者各足及产卵管均为褐色。     

中国缺缘跳小蜂属一新种记述（膜翅目：跳小蜂科）

记述采自辽宁省草河口的缺缘跳小蜂属1新种:黑褐缺缘跳小蜂Cowperia subnigraLi,sp.nov.。本新种与其近缘种C.areolata(Walker,1872)的区别在于其额顶与头宽之比为1:2.53;单眼呈直角三角形排列;梗节长于第1索节;腹部卵圆形,尾须板约位于腹基部1/3处等特征。模式标本保存于东北林业大学昆虫标本室。     

高温对莲草直胸跳甲两个地理种群体重和体型的影响

体型大小与昆虫在温度胁迫下的适应性有关。本文旨在研究入侵杂草空心莲子草Alternanthera philoxeroides生防天敌莲草直胸跳甲Agasicles hygrophila SelmanVogt不同地理种群对高温的形态响应机制。以恒温25℃作为对照,分别测定莲草直胸跳甲长沙种群和海南种群在模拟夏季特定12∶00-16∶00时段30℃、33℃、36℃高温条件下的幼虫体重、初羽化成虫体重、后足胫节长、鞘翅长、前胸背板宽等指标。结果表明,莲草直胸跳甲两地理种群幼虫体重均随温度升高而增加。两种群雌虫及长沙种群雄虫的体重、后足胫节长、鞘翅长、前胸背板宽度随温度上升显著下降;海南种群雄虫的后足胫节长、鞘翅长、前胸背板宽在各温度处理间无显著差异。在33℃、36℃高温条件下,长沙种群的幼虫体重、雌虫体重及雌虫的后足胫节长、鞘翅长、前胸背板宽显著高于海南种群,而长沙种群雄虫的后足胫节长、鞘翅长、前胸背板宽显著低于海南种群。试验表明,不同地理种群的莲草直胸跳甲形态大小对高温的响应存在差异。本研究结果为探究莲草直胸跳甲种间进化以及人工培育耐热种群的实践提供了一定的参考依据。     

中国扁角跳小蜂属—新种(膜翅目:跳小蜂科)

本种隶属扁角姚小蜂属Anicetus Howard的蜡蚧扁角跳小蜂种团(ceroplastisgroup),模式标本存放在浙江农业大学生物防治研究室。浙江扁角跳小蜂Anicetus zhejiangensis,新种 雌 体长1.7mm,浅黄褐色,杂有浅褐色和桔黄色。头顶、中胸盾片、小盾片和腹基部具紫色闪光。颜面在触角窝之间有暗褐色带横过洼间突,伸向颊两侧后方,颜面其余部分青草黄色。复眼浅绿色,单眼红色;触角浅黄色,柄节和梗节背缘黑褐色,柄     

阔柄跳小蜂属一新种及二中国新记录种记述（膜翅目：跳小蜂科）

记述采自中国东北地区的阔柄跳小蜂属1新种及2中国新记录种。新种长索阔柄跳小蜂Metaphycus longifuniculus,sp.nov.育自辽宁省普兰店槲栎Quercus alien上的栎绛蚧Kermes sp.;纯黄阔柄跳小蜂Metaphycusalbopleuralis(Ashmead)育自黑龙江省哈尔滨市糖戚盔蚧Parthenolecaniumcorni(Bouche)、槐花球蚧Eulecanium kuwanai(Kanda)和吉林省长春市榆树上的1种蚧虫;软蚧阔柄跳小蜂Metaphycus insidiosus(Mercet)育自黑龙江省尚志市刺五加上的1种软蚧。模式标本保存于东北林业大学昆虫标本室。     

扶桑绵粉蚧虫态对班氏跳小蜂寄生适合性的影响

为明确寄主虫态对班氏跳小蜂适合度的影响,在实验室条件下\[温度(27±1) ℃,相对湿度(70±5)%,光周期14L∶10D\]测定了寄生于不同发育阶段(3龄若虫和雌成虫)扶桑绵粉蚧的班氏跳小蜂子代性比和个体大小.结果表明: 寄生扶桑绵粉蚧雌成虫的班氏跳小蜂的子代雌雄性比、个体体长和后足胫节的长度均明显高于寄生3龄若虫,且个体体长与后足胫节长度之间有显著的相关性.扶桑绵粉蚧3龄若虫个体大小显著影响班氏跳小蜂子代个体大小,而雌成虫的个体大小对该蜂子代大小无显著影响.
     

NEW RECORDS OF TWO GENERA OF TETRACNEMINAE (HYMENOPTERA: ENCYRTIDAE) WITH TWO NEW SPECIES IN CHINA

Abstract  Two new species of Tetracneminae, Encyrtidae, collected from Heilongjiang, Liaoning, and Yunnan, China are described, i.e. Dusmetia latiscapa Xu, sp. nov, and Gyranusoidea yunnanensis Xu, sp. nov. Dusmetia latiscapa Xu, sp. nov differs from Dusmetia cardinalis Hoffer, 1969 in the coloration of the apical forth funicular segment and the fifth-sixth funicular segments of antennae; (2) length of scape; (3) having undeveloped fore wing and (4) the coloration of body. Gyranusoidea yunnanensis Xu, sp. nov. can be distinguished from the Gyranusoidea hecale Noyes et Hayat 1988 by (1) 1 brown match between antennal scrobe and orbit; (2) scape 5.0 times as long as wide, and (3) antennal scape without white ring subapically. Both two genara of Dusmetia Mercet, and Gyranusoidea Compere are recorded for the first time in China. All specimens examined are deposited in Institute of Applied Entomology, Agriculture & Biotechnology College, Zhejiang University, Hangzhou, China.     

韩国新纪录属纹翅赤眼蜂属及一新种记述(膜翅目,赤眼蜂科)

首次报道了纹翅赤眼蜂属Lathromeris Foerster在韩国的分布,并记述了1个新种Lathromeris koreanica Hu,Lin et Kim与1个新纪录种Lathromeris germanica Girault.新种Lathromeris Koreanica与Lathromeris tumicalvata Lin相似,但新种缘前脉到痣脉下有明显的暗褐色斑块;缘前脉端部1/4处和缘脉基部1/9处有断痕.     

中国新纪录属犁沟蚁属(膜翅目,蚁科)及一新种记述

记述中国新纪录属犁沟蚁属Vombisidris Bolton及1新种暗腹犁沟蚁V.umbrabdomina sp.nov..新种与V.nahet Bolton相似,但中胸背板背面观两侧轻度隆起,不呈钝角状,触角柄节较长,体黄褐色,后腹部深褐色,深于头和并腹胸.模式标本保存于广西师范大学昆虫标本室.     

沟角叶蜂属分类研究(膜翅目,叶蜂科)并记一新种

修订了沟角叶蜂属的属征,编制了已知种分种检索表.记述沟角叶蜂属3种,含1新种:红斑沟角叶蜂Casipteryx maculatina sp.nov.,新种触角窝上突、触角基部2节全部、第3节基半部、唇基端半部、上颚背侧大部、翅基片、腹部第3背板桔褐色,前翅翅痣下具烟色横带,2Rs室稍长于1R1 1Rs室之和,腹部背板具金属铜色光泽,单眼后区侧沟显著,触角鞭节长于头宽,第3节约等于其后2节之和,复眼下缘间距等宽于复眼高,体毛稍长于单眼直径等,与本属已知2种均明显不同;此外,新种中胸腹板具强腹刺突,侧板刻纹粗糙不平,无光滑间隙,小盾片尖锥型隆起,后头两侧显著收缩,唇基前缘两侧亚中部具1尖刺突,腹部第2背板两侧黑色,无白斑,前翅2M室长大于宽等与C.stigma Nie et Wei不同;上唇端部具弧形缺口,内眶背面观不明显突出于复眼之外等,与C.roborowskyi(Jakovlev)也不相同.新种模式标本保存于中南林业科技大学昆虫标本馆.     

六斑月瓢虫触角及感觉器扫描电镜观察

[目的] 明确六斑月瓢虫雌雄成虫触角感觉器种类、分布及形态特征。[方法] 利用扫描电子显微镜对六斑月瓢虫雌、雄成虫触角形态及触角感受器超微结构进行观察。[结果] 六斑月瓢虫成虫触角由柄节、梗节和鞭节组成,柄节长度与宽度显著大于梗节长度与宽度;鞭节分为9个亚节,末端3节横向膨大呈锤状。雌雄成虫触角上共有8种感觉器:刺形感觉器(SC)、毛形感觉器(ST)、锥形感觉器(SB)、腔形感觉器(CaS)、钟形感觉器(CS)、哑铃形感觉器(DS)、香肠形感觉器(SS)及B?hm氏鬃毛感觉器(BB)。以毛形感觉器和刺形感觉器分布最广,遍布触角;B?hm氏鬃毛仅存在于触角柄节与梗节;触角鞭节第9亚节顶端密布7种触角感觉器。六斑月瓢虫雌雄成虫触角长度、触角感觉器类型及分布无显著差异。[结论] 六斑月瓢虫成虫触角上共有8种感觉器,其触角可能具有感知机械刺激、识别化学信息素及感受温湿度变化的作用。本研究为进一步了解六斑月瓢虫触角与其行为间的关系提供基础资料。     

NOTES ON CARBONARIA SPECIES GROUP OF GENUS FANNIA ROBINEAU-DESVOIDY (DIPTERA: FANNIIDAE), IN CHINA

Abstract  The present paper deals with the Fannia carbonaria species group (Diptera: Fannidae) in China. Eight species are recorded, 2 of them are described as new to science, i.e. F. antilocera sp. nov. and F. tauricornis sp. nov., and F. imperatoria Nishina 2002 is recorded for the first time in China. Fannia antilocera sp. nov. is most closely related to F. minutipalpis (Stein, 1895), but can be identified by the third antennal segment 2.5 times as long as broad, scutum with brownish-grey, hind femur with a row of pv setae only at basal half. F. tauricornis sp. nov. is very close to F. capricornis Xue, 1996, but is separated on the third antennal segment 3 times as long as wide, basicosta yellow, legs dark brown, the first sternite with hairs, surstylus without expansion on median dorsal; bacilliform process with 2 short processes. In addition, F. tauricornis sp. nov. is fairly related to F. trigonfera Chillcott, 1961, F. japonica japonica Nishida, 1974, F. japonica amamiensis Nishida, 1975, but sets apart by several distinctive characters: cereal plate with longer arm of outside projection, surstylus without expansion on median dorsal, and bacilliform process with 2 short processes. The paper also reports the characters of the F. carbonaria species group. The group as a whole can be recognized by the hind femur without rows of pv setae at apex, the mid tibia with 2 ad and 2 pd setae and the single strong prealar seta.     

中国厕蝇属炭色厕蝇种团记述（双翅目：厕蝇科）

炭色厕蝇种团Fannia carbonaria group是厕蝇属Fannia中的12个种团之一。该种团全世界已知20种,主要分布于全北界。报道了产自中国的该种团8个种的名录及分布,编制了该种团分种检索表,对其中2个新种F.antilocera sp．nov．,F.tauricornis sp．nov．和1个国内新记录种F.imperatoria Nishina,2002分别予以记述。新种F.antilocerasp．nov．同小须厕蝇F.minutipalpis(Stein,1895)相近缘,但后触角第三节长为宽的3倍,盾片具灰色粉被,后足股节后腹鬃列分布到基部2／3处,尾器明显不同等可予以区别。新种F.tauricornis sp．nov．同羊角厕蝇F.capricornis Xue,1996相近缘,但新种触角第三节长为宽的3倍,前缘基鳞黄色,足暗棕色;第一腹板具毛,侧尾叶后缘中部无角形突出,杆状突分为两个短突等即可区别;另与本亚种团的F.trigonfera Chillcott,1961,F．japonica japonica Nishida,1974,F．japonica amamiensis Nishida,1975亦相近,但新种肛尾叶外侧突横臂较长,侧尾叶后缘中部无角形突出,杆状突分为2个短突等亦可区别。新种模式标本和其它研究标本均保存于沈阳师范大学昆虫研究所昆虫标本室。     

A taxonomic study of Chinese species of the alberti group of Metaphycus (Hymenoptera,Encyrtidae)

Ten alberti-group species of the genus Metaphycus Mercet from China are reviewed. Six species Metaphycus dorsalis sp. n., Metaphycus chinensis sp. n., Metaphycus wui sp. n., Metaphycus stylatus sp. n., Metaphycus fusiscapus sp. n. and Metaphycus fusiformis sp. n. are described as new to science. Four known species from China are redescribed. A key to the females of the Chinese species is given and photomicrographs are provided to illustrate morphological characters of these species. All specimens unless otherwise specified are deposited in the National Zoological Museum of China Institute of Zoology Chinese Academy of Sciences Beijing.     

A new protopristocerine wasp (Hymenoptera: Bethylidae) from the mid-Cretaceous Burmese amber

Ramageoptera platycephala gen. et sp. nov., a new protopristocerine wasp, is described and figured from a female individual preserved in mid-Cretaceous amber from Tanai, northern Myanmar. Ramageoptera platycephala gen. et sp. nov. shows most of the known characters used to circumscribe the extinct subfamily Protopristocerinae, and highlights the putative status of stem-Pristocerinae that may occupy the Protopristocerinae. Ramageoptera platycephala gen. et sp. nov. is unique among the Protopristocerinae, at least, for possessing a flat and square shaped head; eyes glabrous and small; mandibles with four conspicuous sharp teeth; antenna with short scape; forewing with Rs + M vein absent; vein M straight; cell 2R1 distally opened; cell 1Cu closed, sub-equal to R cell; cell 2Cu open.