中国扁蓟马属三新种（缨翅目：蓟马科）

扁蓟马属Hydatothrips世界曾记录14种,我国有分布记录的仅3种。该属的主要特征:触角8节,第Ⅱ节无背侧鬃;前胸背板有一明显膜片域(blotch area);腹背板Ⅰ-Ⅴ节中央无微刺(microtrichia);后胸腹板有一强V型叉内骨。作者在近期研究中发现3新种,记录如下。模式标本均保存于西北农业大学昆虫博物馆。     

中国多饰管蓟马属一新种(缨翅目,管蓟马科)

多饰管蓟马属是无翅、类似蚂蚁形状的一类蓟马,触角8节,通常节Ⅳ、Ⅴ、Ⅵ腹面端部有突出延伸物,无单眼,前下胸片存在;在绝大部分种类中翅胸很弱,窄于前胸,并且翅瓣缺;复眼腹面延伸大于背面,腹部节I盾板帽状。自从Pelikan于1959年在中国采到一种无翅多饰管蓟马,中国再无人报道过此属。本文记述中国多饰管蓟马属1新种,即网多饰管蓟马Compsothrips reticulates sp．nov．并与无翅多饰管蓟马C．sinensis（Pelikan）进行了比较。模式标本保存于西北农林科技大学（NWAFU）。 新种与C．sinensis（Pelikan）相似,其主要区别是新种1）触角节Ⅲ有1个感觉锥;2）复眼后鬃端部钝,不膨大;3）触角节Ⅰ～Ⅱ黑色,节Ⅲ～Ⅴ棕黄色,节Ⅵ基部棕黄色,端部棕色,节Ⅶ～Ⅷ黑色;而后者,1）触角节Ⅲ有2个感觉锥;2）复眼后鬃端部膨大很宽;3）触角全部黑色,只是节Ⅱ端部边缘灰白色,黄棕色。     

中国尾管蓟马族种类及一新种记述(缨翅目,管蓟马科)

记述中国尾管蓟马族3属8种,其中瘤突管蓟马属Bradythrips Hood et Williams为中国新纪录属,并描述了该属1新种,张氏瘤突管蓟马Bradythrips zhangi sp.nov.;编制了中国尾管蓟马族种类名录及种类检索表.新种与近似种Bradythrips hesperus的形态区别:1)新种雌虫腹部2～8节腹面中央各着生1个纵向刻纹斑,而B. hesperus缺该特征;2)新种头部褐色,而B.hesperus头部草黄色;3)新种肛鬃2对等长,而B.Hesperus肛鬃2对不等长.新种的模式标本保存于华南农业大学昆虫学系昆虫标本室(SCAU).     

突眼长蝽属一新种及其五龄若虫记述(半翅目,束长蝽科,突眼长蝽亚科)

突眼长蝽属在世界范围内已知9种,我国已记述3种.本文记述了采自云南的1新种,郑氏突眼长蝽Chauliops zhengi sp.nov.及其五龄若虫.新种成虫和豆突眼长蝽C.fallax Scott与C.choprai Sweet et Schaefer较为近似,与C.fallax Scott相比,新种抱器中部较为纤细;触角第1节短于而非长于第3节;复眼眼柄相对较短;头背面颜色更黑;与C.choprai sweet et Schaefer相比,新种触角第1节短于而非近似等于触角第3节长度;个体较小.新种若虫体表无黑色长大的腺毛;触角第3节为黑褐色而非淡色可明显区别于上述两种若虫.就若虫而言,新种和C.bisontula Banks较相似,即体表均无大型黑色棒状腺毛,新种体表小腺毛似锥形,表面无棘刺可以区别.新种模式标本保存于南开大学生物学系昆虫标本室.     

西藏带蓟马属一新种(缨翅目:蓟马科)

1982—84年中国科学院登山科学考察队对西藏南迦巴瓦峰地区进行了综合考察,发 现带蓟马属(Taeniothrips)一新种。其标本系韩寅恒同志在考察中采得。模式标本保存在中国科学院动物研究所。 小腺带蓟马Taeniothrips glanduculus新种(图1—4) 雄虫:体长约1.3mm。体棕色,常腹部较淡;触角棕色,但节Ⅲ或基部大半黄色。前翅暗黄,基部或包括中部色淡;前足胫节,中、后足胫节基部及各足跗节黄色。 头长153μ(量度单位下同),宽:复眼后163;后缘173。复眼突出或略突出,两颊拱或略拱。单眼间鬃长72,位于后单眼内侧或前缘线以前。触角8节,各节长(宽):节     

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.     

叶蜂属fortunii种团一新种(膜翅目:叶蜂科)

记述了采自陕西东部的叶蜂科Tenthredinidae叶蜂属TenthredoL.1新种:刺胸槌腹叶蜂TenthredodentipectaWeietNie,sp.nov.。该新种隶属于Tenthredo属的fortunii种团,并与该种团分布于印度尼西亚的T.corporaali(Forsius,1925)最为近似,区别为:新种体型较小,体长仅为10mm,中胸侧板光滑无刻点,单眼后区宽长比等于2,体褐色,腹部2～6节背板基部1/2黑褐色,触角第3节短于第4 5节之和等。     

复齿叶蜂属分类研究(膜翅目,蕨叶蜂科)

记述了中国新纪录属复齿叶蜂属2种,包括1新种黑股复齿叶蜂Iconia nigrofemoratga sp.nov.和中国1新纪录种白股复齿叶蜂I.versicolor Malaise 1944.该属仅分布于亚洲东南部,已知仅模式种1种.新种与模式种的主要区别是后足基节和股节黑色,触角基部3节和腹部第3、第6～7背板黑色无白斑,中胸前侧片刻点间具粗糙刻纹.编制了分种检索表,绘制了形态特征图.新种模式标本分别保存于中南林学院昆虫标本室和中国科学院上海昆虫研究所.     

长白山地区食蚜蝇科二新种记述(双翅目,食蚜蝇科)

在整理吉林省长白山地区的食蚜蝇标本时,发现2新种,分别为拟食蚜蝇属1新种,郑氏拟蚜蝇Parasyrphus zhengi sp.nov.,新种近似直带拟蚜蝇Parasyrphus lineola(Zetterstedt,1843),但新种复眼裸,翅暗黑色,足被黑毛,中足胫节端部黑色;长角蚜蝇属1新种,黑缘长角蚜蝇Chrysotoxum nigrimarginatum sp.nov.,新种近似侧宽长角蚜蝇Chrysotoxum fasciolatum(De Geer,1776),与C.fasicolatum的主要区别是新种腹部背板侧缘黑色,触角3节长度之比为1∶1∶4,后者腹部背板黑、黄相间,触角3节长度之比(背面观)约为0.8∶1.0∶3.0。本文除记述新种外,同时提供其特征图。模式标本保存在陕西理工学院动植物标本馆。     

中国三节叶蜂属一新种(膜翅目,三节叶蜂科)

记述采自中国辽宁的三节叶蜂科1新种:Arge reversinervis sp.nov.。新种隶属于三节叶蜂属rustica-metallica种团,并与分布于日本的Arge abelivora Okutani近似,但新种触角亚端部强烈膨大,腹部和后足股节全部黑色,腹部背板具明显的微细刻纹,后足胫节基部4/5黄白色,各足基跗节大部浅褐色,OOL∶POL∶OCL=18∶11∶8 ,前翅C脉背侧大部暗褐色,R M脉几乎等长于Rs脉第1段, 2Rs室上缘显著短于下缘。新种后头强烈膨大,前翅2Rs室上缘显著短于下缘,腹部背板具明显刻纹,颜面具中纵脊,体具铜色光泽,可与同属已知各种鉴别。模式标本保存于中南林业科技大学模式昆虫标本室。     

The genus Hyalomma. XI. Redescription of all parasitic stages of H. (Euhyalomma) asiaticum (Acari: Ixodidae) and notes on its biology

The tick Hyalomma (Euhyalomma) asiaticum Schulze & Schlottke is provisionally considered to belong to the H. (E.) asiaticum group of closely related species. Males of H. asiaticum can be distinguished from those of other species of the group by their long and very deep cervical grooves, long, narrow, straight adanal plates, long dorsal prolongation of the spiracular plates, dorsal posterior margin of the basis capituli deeply concave and angular, and unbroken ivory-coloured strip on the dorsal aspect of the leg segments. Females of H. asiaticum can be distinguished from those of other species of the H. asiaticum group by their very deep cervical grooves, narrowly U-shaped genital aperture, with bulging preatrial fold. Larger domestic and wild ungulates are the principal hosts of the adults, while nymphs and larvae parasitize mainly rodents, leporids and hedgehogs. Hyalomma asiaticum is widely distributed in Asia, from Syria in the West to eastern China in the East. Here all the parasitic stages of H. asiaticum are illustrated and redescribed. Data on its disease relationships are also provided.     

MORPHOLOGY AND ECOLOGY OF THE MARINE BENTHIC DINOFLAGELLATE SCRIPPSIELLA SUBSALSA (DINOPHYCEAE)1

The thecal surface morphology of Scrippsiella subsalsa (Ostenfeld) Steidinger et Balech was examined using the scanning electron microscope. This species is distinguished by a number of morphological characteristics. Apical plate 1′ is wide, asymmetric, and pentagonal, and it ends at the anterior margin of the cingulum. Intercalary plates 2a and 3a are separated by apical plate 3′. The apical pore complex includes a large P_o plate with a raised dome at the center and a deep canal plate with thickened margins at plates 2′, 3′, and 4′. The intercalary bands are wide and deeply striated. The cingulum is deep, formed by six cingular plates; its surface is transversely striated and aligned with a row of minute pores. The cingular list continues around postcingular plate 1′” to form a sulcal list. The sulcal list is a flexible ribbon with a rounded tip that protrudes posteriorly, partially covering the sulcal plates. The hypotheca is lobed, and the antapical plates are irregularly shaped and wide in antapical view. The thecal surface is vermiculate to reticulate. A comparison in morphology and ecology is presented between S. subsalsa and other known Scrippsiella species.     

Gongylonema aegypti n. sp. (Nematoda: Thelaziidae) from Egyptian rodents

Summary A new species of spiruroid nematode,Gongylonema aegypti, is described from two rodents,Mus musculus andGerbillus gerbillus, from Egypt.G. aegypti is distinguished from closely related species by the size of the spicules and gubernaculum, the absence of cuticular bosses in males, and the size of the egg. SEM studies suggest that the generic diagnosis ofGongylonema should be amended to include the presence of a dorsal pore on the cephalic plate and the presence around the buccal cavity of three triangular teeth (not lips) and two sclerotized plates or interlabia. ac]19850414     

MORPHOLOGICAL DESCRIPTION ON THE LARVA OF NEOPSYLLA SPECIALIS SPECIALIS*

Abstract This paper deals in detail with the morphology of the larva of Neopsylla specialis specialis Jordan, 1932. It may be distinguished from other larvae of 5 species or subspecies of Neopsylla by two fine setae lying on outside of each posterior long seta on the ventral plates of the first to third thoracic segments, ratio of the length and width of the egg burster, number and shape of mandibular teeth, number and length of the setae in the anterior and posterior row on dorsal side of head, and number of the setae of anal comb and the strut setae. The sense organs on the 10th tergite are discussed.     

MORPHOLOGY AND MOLECULAR ANALYSES OF THREE TOXIC SPECIES OF GAMBIERDISCUS (DINOPHYCEAE): G. PACIFICUS, SP. NOV., G. AUSTRALES, SP. NOV., AND G. POLYNESIENSIS, SP. NOV.

Three new dinoflagellate species, Gambierdiscus polynesiensis, sp. nov., Gambierdiscus australes, sp. nov., and Gambierdiscus pacificus, sp. nov., are described from scanning electron micrographs. The morphology of the three new Gambierdiscus species is compared with the type species Gambierdiscus toxicus Adachi et Fukuyo 1979, and two other species: Gambierdiscus belizeanus Faust 1995 and Gambierdiscus yasumotoi Holmes 1998. The plate formula is: Po, 3′, 7", 6C, 8S, 5‴, 1p, 2". Culture extracts of these three new species displayed both ciguatoxin- and maitotoxin-like toxicities. The following morphological characteristics differentiated each species. 1) Cells of G. polynesiensis are 68–85 μm long and 64–75 μm wide, and the cell’s surface is smooth. They are identified by a large triangular apical pore plate (Po), a narrow fish-hook opening surrounded by 38 round pores, and a large, broad posterior intercalary plate (1p) wedged between narrow postcingular plates 2‴ and 4‴. Plate 1p occupies 60% of the width of the hypotheca. 2) Cells of G. australes also have a smooth surface and are 76–93 μm long and 65–85 μm wide in dorsoventral depth. They are identified by the broad ellipsoid apical pore plate (Po) surrounded by 31 round pores and a long and narrow 1p plate wedged between postcingular plates 2‴ and 4‴. Plate 1p occupies 30% of the width of the hypotheca. 3) Cells of G. pacificus are 67–77 μm long and 60–76 μm wide in dorsoventral depth, and its surface is smooth. They are identified by the four-sided apical pore plate (Po) surrounded by 30 round pores. A short narrow 1p plate is wedged between the wide postcingular plates 2‴ and 4‴. Plate 1p occupies 20% of the width of the hypotheca. These three newly described species were also characterized by isozyme electrophoresis and DNA sequencing of the D8–D10 region of their large subunit (LSU) rRNA genes. The consistency between species designations based on SEM microscopy and classification inferred from biochemical and genetic heterogeneities was examined among seven isolates of Gambierdiscus. Their classification into four morphospecies was not consistent with groupings inferred from isozyme patterns. Three molecular types could be distinguished based on the comparison of their LSU rDNA sequences. Although G. toxicus TUR was found to be more closely related to G. pacificus, sp. nov. than to other G. toxicus strains, the molecular classification was able to discriminate G. polynesiensis, sp. nov. and G. australes, sp. nov. from G. toxicus. These results suggest the usefulness of the D8–D10 portion of the Gambierdiscus LSU rDNA as a valuable taxonomic marker.     

Kinorhyncha from the stomach of the shrimp Pleoticus muelleri (Bate, 1888) from Comodoro Rivadavia, Argentina

Six kinorhynchs were found in the stomachs of the Argentine red shrimp, Pleoticus mulleri (Bate, 1888) from the Argentine coast of Patagonia. Three new species are described: Condyloderes storchi n. sp., Pycnophyes argentinensis n. sp. and P. neuhausi n. sp. A fourth species, Kinorhynchus anomalus Lang, 1953 was previously known only from the coast of Chile. This is the third known record of kinorhynchs documented as a food source. Condyloderes storchi, n. sp. is the fourth new species in this genus. It is distinguished by its paradorsal cuspidate spines on segments 7 and 9, lateral accessory and ventrolateral spines on segments 3, 6, 7, 10 and 11. P. argentinensis, n. sp. has nearly equal sternal width for segments 3–11 (about 7% of the trunk length), episternal plates with three distinct areas along the anterior margin, mid-sternal plate with even margin, mid-dorsal spinose protrusions along the terminal borders of segments 11 and 12, and lateral terminal spines 176 μm long, about 21% of trunk length. P. neuhausi, n. sp.has a prominent posterior elongation of the tergal plate of segment 3, uneven lateral margins of the mid-sternal plate, a maximum sternal width at segment 3, no mid-dorsal spinose processes and mid-ventral thickenings on segments 10–12.     

A New Species of the Neotropical Genus Oukuriella Epler (Diptera,Chironomidae, Chironominae)

The male of a new species of Oukuriella Epler, 1986, O. gracilis sp. n., is described from Brazil. The new species is distinguished by slender abdominal segments, distinctive setal tufts on abdominal tergites, markings on the abdominal segments, and brownish rings distally on the tibiae. A key to adult males of Oukuriella is provided.     

Specific criteria in Grania (Oligochaeta,Enchytraeidae)

The structure of the penial bulb and male efferent duct system of Grania species may be used in addition to setal pattern and spermathecal shape to distinguish species. Six penial bulb types are distinguished: (1) a simple, small, glandular bulb surrounding the male pore; (2) a small, glandular bulb, with a large, associated, dorso-medial gland mass; (3) a small glandular bulb, medial to the male pore, with an elongate male bursa (the aglandular sac), the vas deferens exitting directly into the invaginated male pore; (4) a glandular bulb with an aglandular sac and a small, cuticular stylet embedded in the bulb, extending from the ectal end of the vas deferens; (5) a glandular bulb and an aglandular sac with a long stylet extending from the vas deferens, through the bulb into the sac; and (6) glandular bulb reduced or absent, with or without an aglandular sac; with a long stylet and other prominent modifications, usually muscular, of the vas deferens. The details of the male duct structure were consistent within specimens grouped on the basis of setal distribution and shape and detailed spermathecal structure. Diverse male duct patterns are found within the polytypic species G. macrochaeta and G. postclitellochaeta. The positions of the spermathecal and male pores in their respective segments are distinctive for some species.     

The external morphology of contact-chemoreceptive hairs of flies and the motility of the tips of these hairs

The external morphology of contact-chemoreceptive hairs (taste hairs) of six fly species, Calliphora vicina, Lucilia caesar, Musca domestica, Phormia terranovae, Sarcophaga carnaria and Stomoxys calcitrans, is described. The species can be distinguished by the differences between the patterns of taste hairs at the ventral side of their prothoracic tarsi. Taste hairs can be subdivided into morphological types, using the shape of the cuticle around the apical pore as criterion, even though this shape changes slightly on opening and closing of the pore. Light microscopical studies reveal that the nature and osmolarity of stimuli are decisive for the effect stimuli have on the shape of the top of the labellar hairs. The motions of the apical cuticle appear to be reversible. Gentle ultrasonic treatment preserves the shape of the cuticle of the top and the diameter of the pores on fluid stimulation. This technique makes it possible to study the effect of a previous stimulation on both tarsal and labellar hairs with the scanning electron microscope. It is supposed that stimuli can affect cuticular components around the pore, producing volume changes in that cuticle which alter the diameter of the pore.