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1.
A new species of a cucullanid nematode is described, illustrated and compared with Cucullanus brevispiculus Moravec, Kohn & Fernandes, 1993 and C. rhamphichthydis Moravec, Kohn & Fernandes, 1997, two species previously reported as parasitizing freshwater fish in South America. The new species is characterized mainly by markedly short spicules, deirids and excretory pore situated posterior to the oesophago-intestinal junction, presence of strongly sclerotized plates in the oesophastome and oesophagus divided into two distinct portions.  相似文献   

2.
A new study of a surviving syntype of Trigona meadewaldoi Cockerell, 1915, was undertaken and several widely employed names for Neotropical stingless bees recognized as junior synonyms. A lectotype is designated for Trigona meadewaldoi and the following new synonymies established: Tetragona francoi Moure, 1946, and Trigona (Frieseomelitta) freiremaiai Moure, 1963. These nomenclatural matters are here settled and the species thoroughly characterized in advance of a forthcoming phylogenetic consideration of the genus Frieseomelitta von Ihering, 1912.  相似文献   

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Species of Laccaria are described from the eastern Himalayas, in the Xizang Autonomous Region of China, more commonly known as Tibet. Specimens were collected during several expeditions over a 12-year time span. Nuclear ribosomal internally transcribed spacer regions 1 and 2 including and 5.8S (ITS) as well as the 5' end of the large subunit (28S) sequence data were generated for 22 specimens from Tibet and analyzed in a dataset of 115 Laccaria samples. The results documented seven species from this region, five of which represent currently undescribed species. The taxonomy of Tibetan Laccaria is discussed, five new species are proposed, and an artificial key that includes extralimital species from Asia is provided.  相似文献   

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The greatest number of feather mite Congeners occurring on a single host are members of the genus Fainalges Gaud & Berla (Acarina, Xolalgidae), associates of New World parrots. For the green conure, Aratinga holochlora (Sclater) (Aves, Psittacidae), there are six new and one previously known Fainalges species; these will be (re) described herein. The new species are: F. bilobatus, F. latistriatus, F. spiculatus, F. stettenheimi, F. tanythrix, F. vulgaris ; the redescribed species is F. longissimus Mejía-González & Pérez. Additionally, the developmental series for each species is (re)described. The microhabitats of the two most abundant species, F. bilobatus and F. vulgaris , are established. Fainalges brevissimus Mejía-González & Pérez is considered as a junior synonym of F. intermedius (Trouessart).  相似文献   

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The Tribe Hemilophini (Lamiinae) is reviewed for Hispaniola and an identification key is provided. Fifteen species are now known from the island, including one new species of Adesmus (Adesmus fortunei from Pedernales and La Vega Provinces, Dominican Republic), one new species of Oedudes (Oedudes anulatus from Peravia and La Vega Provinces, Dominican Republic), and five new species of Calocosmus (Calocosmus contortus from San Cristóbal Province, Calocosmus punctatus from Peravia Province, Calocosmus rawlinsi from Elías Piña Province, Calocosmus robustus from La Vega Province, and Calocosmus thonalmus from La Altagracia Province, all in the Dominican Republic). Oedudes and Adesmus are new island and country records for Hispaniola and Dominican Republic, respectively. Calocosmus holosericeus Gahan is a new synonym of Calocosmus janus Bates. In addition to the new species, five new country records and four new island records are presented for Calocosmus.  相似文献   

9.
In November, 1968, a single specimen ofPhaneropsolus macacae (Premvati, 1958)Saoud, 1964 was collected from the small intestine of a female Taiwanese monkey,Macaca cyclopis (Swinhoe, 1862). The Taiwanese monkey was added as a new host for this trematode.  相似文献   

10.
记述了绢须野螟属Palpita Hubner 18种,分别为端突绢须野螟P annulifer Inoue;半环绢须野螟P.kiminensis Kirti et Rose,中国新纪录种;钩镰绢须野螟P.indannulata Inoue,中国新纪录种;小锥绢须野螟P homalia Inoue;弯囊绢须野螟P.hypohomalia Inoue;双突绢须野螟P.inusitata (Butler);细微绢须野螟P.minuscula Inoue,1996;弯刺绢须野螟P.curvdispina sp.nov.,该种与细微绢须野螟P.minuscula Inoue近似,但新种个体大,阳茎内端部角状器粗而弯可以与之相区别;尤金绢须野螟P.munroei Inoue;角斑绢须野螟P fraterna(Moore);小绢须野螟P.parvifraterna Inoue;端刺绢须野螟P.perunionalis Inoue,中国新纪录种;短叉绢须野螟P.pajnii Kirti et Rose;方突绢须野螟P warrenalis(Swinhoe);曲纹绢须野螟P.curvilinea(Janse);白腊绢须野螟P.nigropunctalis(Bremer);尖角绢须野螟P asiaticalis Inoue;宽钝绢须野螟P.sejunctalis Inoue.编制了中国绢须野螟属分种检索表,并提供了新种的外生殖器特征图.模式标本保存在南开大学生物系昆虫标本室.  相似文献   

11.
Howe AT  Bass D  Chao EE  Cavalier-Smith T 《Protist》2011,162(5):710-722
Glissomonadida is an important cercozoan order of predominantly biflagellate gliding bacterivores found largely in soil and freshwater. Their vast diversity is largely undescribed. We studied 23 mostly newly isolated strains by light microscopy and sequenced their 18S rDNA genes; nine represent new species. For two misidentified ATCC 'Heteromita triangularis' strains, we establish novel gliding genera and species: the sandonid Mollimonas lacrima, the only glissomonad forming anterior and posterior pseudopodia, and Dujardina stenomorpha, a strongly flattened member of the new family Dujardinidae. A new strain from Oxfordshire grassland soil is the first reliably identified isolate of the virtually uniflagellate, smooth-gliding glissomonad genus, AllantionSandon, 1924. Phylogenetic analysis and cytological features reveal Allantion to be a member of Allapsidae. Sandona limna and Bodomorpha prolixa from Lake Baikal and Sandona hexamutans from volcanic Costa Rican soil are described as new species. Fifteen glissomonad strains were from grassland beside Lake Baikal. We describe two as new species of Sandona (S. heptamutans and S. octamutans); the others included strains of Sandona and Allapsa species that have already been described; and three were new species of Sandona and Allapsa but these died before being described. We discuss the ecological and evolutionary significance of these new strains.  相似文献   

12.
记述了我国圆点小卷蛾属EudemisHbner的种类,共4种,其中包括1新种:郑氏圆点小卷蛾E.zhengi sp.nov.。提供了分种检索表、新种的形态特征图和生殖器图。模式标本保存在南开大学昆虫标本室。郑氏圆点小卷蛾,新种Eudemis zhengi sp.nov.(图1~2)新种与杨梅圆点小卷蛾E.gyrotis(Meyrick)相似,但可通过下列特征区别:雄性外生殖器之颚形突中部的突起宽短,同时侧缘还具尖角状突起并被细齿,抱器瓣仅在抱器腹近基部具1簇刺丛;后者颚形突中部的突起长指状,侧缘无突起,抱器瓣腹缘具3簇刺丛,分别位于抱器腹基部和端部及抱器端基部2/5处。正模♂,云南勐腊补蚌(21°29′N,101°33′E;海拔650m),25Aug.2005,任应党采;玻片号YHL05159。词源:新种种名以郑哲民教授的姓氏命名,以示对郑先生在我国昆虫系统学研究领域做出显著贡献的敬意。  相似文献   

13.
The odontostomatid ciliates have remained a homogeneous order of ciliates since the 1930s when they were recognized as a monophyletic assemblage. Since that time they have been placed with the heterotrich ciliates, and more recently transferred as incertae sedis to the new "riboclass" class Armophorea. We were able to obtain the small subunit rRNA gene sequence of the odontostomatid Epalxella antiquorum (Penard, 1922) Corliss, 1960, collected from the meromictic alpine Lake Alat in Germany, in July 2005. An alignment with representatives of all 11 classes of ciliates unambiguously places the Epalxella sequence with other representatives of the class Plagiopylea with 100% support in both maximum likelihood and Bayesian analyses. Epalxella is the basal lineage with trimyemid and plagiopylid ciliates forming the two terminal sister clades. While this molecular support is strong and unambiguous, there are no obvious morphological features to unite these three clades. Thus, the class Plagiopylea must continue to be referred to as a "riboclass." Using the Epalxella sequence as a basal marker, we tentatively identified 20 environmental sequences to the terminal plagiopylean clades: eight to the genus Trimyema; four to the genus Plagiopyla; and eight to two new species, one of which might represent a new plagiopylean genus.  相似文献   

14.
山西忻州中新世鼠兔科化石   总被引:3,自引:1,他引:2  
本文记述了山西忻州发现的跑兔属—新种.该种以个体较小, P~2 较简单,无前沟, M~2 后叶无后突, P_3 小,无前内沟与前外沟等特征与属型种 B. forsythmajori 相区别,命名为杨胡跑兔 B. yanghuensis sp. nov..新种在进化水平上较属型种稍原始,但两者显示出较近的系统关系.根据 B. yanghuensis sp. nov. 的进化水平,推断其地质时代可能为中中新世早期,约相当于欧洲 Orleanian 期.  相似文献   

15.
Vizzini A  Contu M  Musumeci E  Ercole E 《Mycologia》2011,103(1):203-208
A new species of Infundibulicybe (viz. I. mediterranea sp. nov.) is described from Sardinia based both on morphological and molecular ITS data. The species, a close ally of I. gibba, differs from the latter in the darker tinges of the basidiomata, the stipe, which is nearly concolorous with the pileus, and smaller basidiospores. Drawings of the main micro-morphological features as well as a color photograph of fresh basidiomata in situ are provided.  相似文献   

16.
A new species of Haplometroides (Digenea, Plagiorchiidae) is described from a specimen of Phalotris nasutus (Gomes, 1915) (Serpentes, Colubridae). The host snake was obtained in the municipality of Corumbd, Mato Grosso do Sul State, Brazil. Trematodes were recovered from esophagus, stomach, and small intestine of the host. The main characteristic of the new species is the vitellaria, which is intercecal, cecal, and extracecal in the preacetabular region. A key for identification of the species in Haplometroides is proposed.  相似文献   

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记述在宁夏六盘山林区发现的金小蜂科翠金小蜂属Tritneptis1新种,六盘山翠金小蜂T.liupanshanensis sp.nov.。新种群集外寄生于危害落叶松的重要害虫——落叶松红腹叶蜂Pristiphora erichsonü(Hartig)的预蛹和蛹上,是自然寄生这种食叶害虫的主要天敌,在越冬预蛹中的寄生率达26.8%,每头寄主出蜂为18~74头,雌雄性比为6.2:1.0,在自然控制这种害虫上发挥着重要作用,是一种可用于生物防治的优良天敌。描述了新种的形态学特征,列出了区分我国该属现知4个种的检索表,并记述了新种的生物学特性。  相似文献   

19.
The subfamily Dysponetinae (Annelida, Chrysopetalidae) was proposed by Aguado et al. (Cladistics 29, 610) based on a phylogenetic analysis including morphological and molecular information. However, as a differential diagnosis of the new subfamily, as required by the International Code of Zoological Nomenclature, was not included, the name was not made available. A diagnosis of the subfamily is proposed herein to correct this oversight.  相似文献   

20.
Abstract. The fruit fly genus Ceratitis (Diptera: Tephritidae) comprises several important pest species attacking a wide range of unrelated fruits. In this paper the subgenus Ceratitis ( Pardalaspis ) Bezzi is revised. Ten species are recognized of which five are described as new: C.(P.)hamata sp.n., C.(P.)munroi sp.n., C.(P.)serrata sp.n., C.(P.)semipunctata sp.n. and C.(P.)zairensis sp.n. A key to both sexes is provided. All species are restricted to the Afrotropical Region and distributional and known host plant data are given.  相似文献   

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