New and interesting palpigrades (Arachnida, Palpigradi) of the genera Koeneniodes Silvestri, 1913 and Prokoenenia Börner, 1901 from Asia

Zootaxa ◽  
2021 ◽  
Vol 4990 (1) ◽  
pp. 45-64
Author(s):  
YUN BU ◽  
MAYSA FERNANDA VILLELA REZENDE SOUZA ◽  
JAIME MAYORAL
Keyword(s):  
New Species ◽  
Body Size ◽  
Large Body ◽  
First Record ◽  
Setal Formula ◽  
Large Body Size ◽  
Immature Female ◽  
Broadleaf Forest ◽  
Lateral Organs ◽  
Two New Species

Two new species of palpigrades are described: a soil-dwelling species of the genus Koeneniodes Silvestri, 1913 from a broadleaf forest in Tibet and an extraordinary cave-dwelling species from Jinhua cave in China belonging to Prokoenenia Börner, 1901. Koeneniodes tibetanus sp. n. is related to Koeneniodes spiniger from Thailand. The two species share the presence of four thick and spiniform setae on the second lobe of the female genitalia; they differ in the number of thick setae on opisthosomal sternite IV, the number of cheliceral teeth, the coxal setal formula, and the morphology of the spiniform setae. Prokoenenia sarcodactylica sp. n. is based on an immature female from Jinhua Cave, Beijing. The presence of 18 finger-shaped blades in the lateral organs—unique among palpigrades –, the large body size (2150 μm) and the extremely long basitarsus IV (205 μm) indicate that the new species is the first undoubtedly cave–adapted Prokoenenia. This is also the first record of the genus Prokoenenia from China.  

Description of two new species from Venezuela in the highly diverse dipsadine genus Atractus (Serpentes: Colubridae)

2009 ◽  
Vol 30 (2) ◽  
pp. 233-243 ◽  
Author(s):  
Gilson Rivas Fuenmayor ◽  
Paulo Passos ◽  
Cesar Barrio-Amorós
Keyword(s):  
New Species ◽  
Body Size ◽  
Small Body ◽  
Large Body ◽  
Species Description ◽  
Small Body Size ◽  
Single Female ◽  
Large Body Size ◽  
Body Diameter ◽  
Two New Species

AbstractTwo new species of Atractus are described from Venezuela uplands and highlands on two northern Andean cordilleras. Atractus acheronius, known only from Sierra de Perijá, can be distinguished from congeners by having 17 dorsal scale rows, presence of preocular scales, seven upper and lower labials, seven maxillary teeth, 166 ventrals in the single female, 23 subcaudals, dorsum brown with small dark brown dots, large body size, huge body diameter, and small tail size. Atractus multidentatus, known only from north versant of the Cordillera de Mérida, can be distinguished from congeners by having 17 dorsal scale rows, eight upper and lower labials, 18 maxillary teeth, 153 ventrals in the single female, nine subcaudals, dorsum reddish brown with five longitudinal dark brown stripes, small body size, small body diameter, and small tail size. Additionally, a discussion concerning the species description of Atractus based on unique specimens is provided.

Two new species of Asian Serratella Edmunds (Ephemeroptera: Ephemerellidae)

Zootaxa ◽  
2009 ◽  
Vol 2268 (1) ◽  
pp. 52-58 ◽  
Author(s):  
LUKE M. JACOBUS ◽  
C.-F. ZHOU ◽  
W. P. McCAFFERTY
Keyword(s):  
New Species ◽  
Body Size ◽  
Large Body ◽  
The State ◽  
Identification Key ◽  
Large Body Size ◽  
Two New Species

Two new species of Serratella Edmunds (Ephemeroptera: Ephemerellidae: Ephemerellinae: Hyrtanellini) are described based on larvae from China and Iran. Serratella brevicauda, new species, is distinguishable from other Hyrtanellini based on its short caudal filaments and its relatively large body size. Serratella elissa, new species, is distinguishable from other Hyrtanellini based on a combination of its having paired tufts of spatulate setae and no paired spines on abdominal terga and having tarsal claws with denticles nearly subequal in size. The state of Asian Serratella systematics is reviewed, and some problems of Hyrtanellini systematics are discussed. Modifications to a recent identification key for ephemerellid larvae are suggested.

A new species of the subgenus Scheloribates (Topobates) (Acari: Oribatida: Scheloribatidae) from Panama

2020 ◽  
Vol 29 (2) ◽  
pp. 278-283
Author(s):  
S.G. Ermilov
Keyword(s):  
New Species ◽  
Body Size ◽  
Leaf Litter ◽  
Related Species ◽  
Large Body ◽  
Oribatid Mite ◽  
Neotropical Region ◽  
Large Body Size ◽  
First Time ◽  
A New Species

The oribatid mite subgenus Scheloribates (Topobates) Grandjean, 1958, is recorded from the Neotropical region for the first time. A new species of this subgenus is described from the leaf litter collected in Cayo Agua Island, Panama. Scheloribates (Topobates) panamaensis sp. nov. differs from its related species by the very large body size and presence of a strong ventrodistal process on the leg femora II–IV.

scholarly journals New records of ring nematodes, Bakernema enormese n. sp. and Criconema (Nothocriconemella) graminicola Loof, Wouts & Yeates, 1997 (Nematoda: Criconematidae) from natural forests of Vietnam

2019 ◽  
Vol 41 (3) ◽  
Author(s):  
Nguyen Ngoc Chau
Keyword(s):  
New Species ◽  
Body Size ◽  
New Records ◽  
Large Body ◽  
Lateral View ◽  
The Body ◽  
Natural Forests ◽  
Large Body Size ◽  
Stylet Length ◽  
North Vietnam

Bakernema enormese sp. n., collected from rhizosphere of forest wood trees in Muong Phang, Dien Bien Province (north Vietnam) is described and illustrated. The new species is characterized by large body size and stylet. In general, this new species is close to two existing species of the same genus, B. inaequale and B. dauniense by cuticle structure in transparent membranous projections which appear in lateral view as spine-like structures on each annulus. These structure arranged into several rows along the body. In morphology, the new species differs from B. inaequale and B. dauniense  by body and stylet length, i.e. 609–842 µm and 143.5–150 µm vs. 391–578 µm and 59–74 µm for B. inaequale and vs. 391–461 µm and 65–74 µm for B. dauniense. In addition, new species can be distinguished from B. inaequale by the longer membranous projection, 8–12 vs. 6–10 µm and vagina shape, curved vs. sigmoid. From B. dauniense, the new species differs by the much longer membranous projection, 8–12 vs. 1.4–2.2 µm and less number annules between vulva and tail end (RV), 3–4 vs. 7.8 annules. The presence of Criconema (Nothocriconemella) graminicola Loof, Wouts & Yeates, in Vietnam with morphometrics, illustrators and remarks given.

A new species of Eupholus Boisduval from West New Guinea (Coleoptera: Curculionidae)

Zootaxa ◽  
2017 ◽  
Vol 4263 (1) ◽  
pp. 194
Author(s):  
ALEXANDER RIEDEL ◽  
THIERRY PORION
Keyword(s):  
New Species ◽  
Body Size ◽  
Large Body ◽  
New Guinea ◽  
Large Body Size ◽  
A New Species ◽  
Molecular Characters

Eupholus Boisduval is outstanding among weevils for its large body size and splendid coloration. Nevertheless, some species have eluded discovery until recently. Here we describe E. marielaurae sp. n. from the Arfak Mountains of West New Guinea. We provide morphological and molecular characters to differentiate it from E. cuvierii (Guérin-Méneville).

scholarly journals Siphonophoridae from Brazilian Amazonia Part 1 – The genus Columbianum Verhoeff, 1941 (Diplopoda, Siphonophorida)

2018 ◽  
Author(s):  
Helen J. Read ◽  
Henrik Enghoff
Keyword(s):  
New Species ◽  
Body Size ◽  
Small Body ◽  
Large Body ◽  
The Body ◽  
Small Body Size ◽  
Large Body Size ◽  
Small Head ◽  
Three New Species ◽  
Seasonally Flooded

A large sample of Siphonophoridae from Brazil was studied; two morphological groups could be distinguished. Here species considered to be from the genus Columbianum Verhoeff, 1941 are examined in detail. The genus is known from Central and South America (Guatemala, Panama, Honduras, Guiana, Colombia, Peru and Brazil) and is characterised by a clear demarcation between head and rostrum in combination with long antennae, clearly surpassing the tip of the rostrum. A list of previously described species considered to belong to the genus is given; three new species are described: C. major sp. nov. has a large body size and a small head, C. nahvalr sp. nov. has a particularly pronounced domed head and a more castellated appearance to the body, C. adisi sp. nov. has a small body size and a very characteristic hind margin to the pleurites. Variation in the state of preservation of specimens hinders a diagnosis, but the examination of the accessory claw and details of the metazonital limbus and pleurite edges are helpful. Unusually for Diplopoda, the male gonopods are not very useful for identification. Ecological comments are given for each new species, one of which, C. adisi sp. nov., is from the seasonally flooded forest and appears to avoid inundation by climbing trees.

scholarly journals New species of Thelonema, Metasphaerolaimus, and Monhystrella (Nematoda, Monhysterida) from Kermadec Trench, Southwest Pacific

2015 ◽  
Author(s):  
Daniel Leduc
Keyword(s):  
New Species ◽  
Body Size ◽  
Small Body ◽  
Large Body ◽  
Original Description ◽  
First Record ◽  
Vaginal Wall ◽  
Anterior Vaginal Wall ◽  
Entire Family ◽  
Variable Position

Three new species of the order Monhysterida are described based on specimens obtained at depths of 8081 and 9177 m in the Kermadec Trench. Thelonema clarki sp. nov. is characterised by a large body size (3230–4461 µm), short cylindrical buccal cavity, gubernaculum without apophyses, and long conico-cylindrical tail. This is the first record of the genus since its original description over two decades ago from the Peru Basin. Metasphaerolaimus constrictus sp. nov. is characterised by a relatively long body (1232–1623 µm), slightly arcuate spicules without gubernaculum, and conico-cylindrical tail with inner cuticle conspicuously thickened immediately anterior to cylindrical portion. Monhystrella kermadecensis sp. nov. is characterised by a circle of papillose outer labial sensillae slightly anterior to the four short cephalic setae, gubernaculum with caudal apophyses, the presence of distinct cuticularised piece along anterior vaginal wall, and a relatively short conical (males) or conico-cylindrical tail (females) with conical, ventrally-curved spinneret. M. kermadecensis sp. nov. can be differentiated from all other species of the genus, and, indeed, the entire family, based on the variable position of the anterior gonad relative to the intestine. The new species is classified within the Monhysteridae, and not the closely-related Xyalidae, based on the small body size, a smooth cuticle, and the presence of six outer labial papillae and only one testis. Further work is required to clarify the placement of M. kermadecensis sp. nov. relative to other monhysterid genera. A tabular key to all ten valid Metasphaerolaimus species is presented.

scholarly journals Conotrachelus terryerwini, a majestic new species of Curculionidae (Molytinae, Conotrachelini) from Costa Rica

ZooKeys ◽  
2021 ◽  
Vol 1044 ◽  
pp. 721-727 ◽  
Author(s):  
Robert S. Anderson
Keyword(s):  
New Species ◽  
Body Size ◽  
Costa Rica ◽  
Large Body ◽  
Type Locality ◽  
Large Body Size

A very large, new, and distinctive species of Conotrachelus Dejean is described from Área de Conservación Guanacaste, Costa Rica. Conotrachelus terryerwinisp. nov. (type locality Volcan Orosi, Estación Biológica Maritza, Guanacaste, Costa Rica) is described and named in honor of Terry L. Erwin (1940–2020), famed carabidologist and biodiversity champion. This majestic species is easily distinguished by its large body size (15–20 mm) and extremely long rostrum (especially in females).

A new oribatid mite of the genus Pilogalumna Grandjean (Acari: Oribatida: Galumnidae) from northeastern Iran, with updated identification key to known species of the genus

2021 ◽  
Author(s):  
Mohammad Ali Akrami
Keyword(s):  
New Species ◽  
Body Size ◽  
Large Body ◽  
Oribatid Mite ◽  
Identification Key ◽  
Large Body Size ◽  
The Family ◽  
A New Species

A new species of oribatid mite of the family Galumnidae is described and illustrated based on adult specimens from soil in Mashhad county, Razavi Khorasan Province, northeastern Iran. Pilogalumna khorasanica sp. nov. is characterised by rounded rostrum; very long interlamellar setae; long, nearly setiform, finely bilaterally barbed bothridial setae; medially interrupted dorsosejugal furrow; elongated porose areas A2, very long and narrow, ribbon shaped A3 and large body size. The new species is most similar morphologically to Pilogalumna crassiclava longiareata (Pérez-Íñigo, 1976), however, differs from it in morphology of bothridial setae and structure of notogastral porose areas, by the presence of longer interlamellar setae and larger body size. An updated identification key to known species of Pilogalumna is presented.

First records of Dentridactylinae (Orthoptera: Tridactylidae) from Colombia, with description of two new species of Dentridactylus Günther

Zootaxa ◽  
2018 ◽  
Vol 4402 (3) ◽  
pp. 575
Author(s):  
NATHALIE BAENA-BEJARANO ◽  
SAM W. HEADS
Keyword(s):  
New Species ◽  
Body Size ◽  
First Record ◽  
Lateral Margin ◽  
The South ◽  
Two New Species ◽  
Identification Of Species

Two new species of Dentridactylus Günther (Orthoptera: Tridactylidae) are described and illustrated: Dentridactylus quadratus sp. nov. and Dentridactylus truncatus sp. nov. The new species represent the first record of the subfamily Dentridactylinae from Colombia and the second record for the Americas. Both come from the south of the country and are readily separated from congeners by their larger body size; D. quadratus sp. nov. is further delimited by the quadrate outline of the epiproct, and D. truncatus sp. nov. by the epiproct with lateral lobes and lateral margin of epiproct not indented. Keys for the identification of species in the Americas are provided. 

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