scholarly journals A new species of Petasiger (Digenea, Echinostomatidae) parasitizing Podiceps major and Rollandia rolland (Aves, Podicipedidae) from Buenos Aires Province, Argentina

2010 ◽  
Vol 55 (3) ◽  
Author(s):  
Lía Lunaschi ◽  
Fabiana Drago

AbstractPetasiger argentinensis sp. nov. is described from material found in the intestine of the Great Grebe, Podiceps major (Boddaert) and the White-tufted Grebe, Rollandia rolland Quoy et Gaimard (Podicipediformes, Podicipedidae), from Argentina. The new species is characterized by the head collar armed with 19 spines and by the testes arranged in tandem. These characters are shared with only two Neotropical species of the genus, P. novemdecim Lutz, 1928 and P. combesi Zamparo, Overstreet et Brooks, 2005. Petasiger novemdecim differs from the new species in having a larger body, longer collar spines, larger eggs, a cirrus-sac of similar size to the ventral sucker and almost entirely anterior to it, and vitelline fields confluent ventrally posterior to the ventral sucker. P. combesi differs from the new species in most metrical characters, the shape of the body (antero-posteriorly elongate) and the location of the genital pore (dextral) and the excretory pore (dorsal). This is the first record of a member of the genus Petasiger parasitizing birds from Argentina.

2006 ◽  
Vol 51 (1) ◽  
Author(s):  
Lía Lunaschi ◽  
Fabiana Drago

AbstractDolichorchis lacombeensis sp. nov., a digenean parasite of the gut of the cocoi heron, Ardea cocoi (L.), is described as a new species from Buenos Aires Province, Argentina. This new species most closely resembles D. buteii and D. tregenna in the distribution of the vitelline follicles, which reach the intestinal bifurcation in the forebody. D. buteii can be distinguished from D. lacombeensis sp. nov. by the distribution of the vitelline follicles in the hindbody, which are concentrated in midline, by the presence of a sphincter in genital pore and by the size of holdfast organ and posterior testis, which are larger, (240–400 × 176–240 and 315–464 × 240–410 µm, respectively). D. tregenna differ from the new species by their larger measurements (pseudosuckers’ length 90–100, pharynx 52–90 × 50–70 and eggs 89–104 × 48–68 µm).


2012 ◽  
Vol 34 (82) ◽  
Author(s):  
Nora B. Camino ◽  
María Fernanda Achinelly

The presente study describes and ilustrates Cranifera robustum n. sp. (Nematoda, Thelastomathidae), a parasite of Cyclocephala signaticollis larvaes (Coleoptera, Scarabaeidae), from Buenos Aires, Argentina. Cranifera robustum n. sp. ischaracterized by its striated cuticle trough all the body, proeminent near the anterior end, its lack of intestine caecum, itssmall stomach, a long oesophagus, with thin irregular walls in male and regular ones in female, with a round valvatedbasal bulb. Its nerve ring is located in the middle of the oesophagus corpus, and the excretory pore is located at the base ofthe oesophagus, in both sexes. The female presents a not protruding vulva, located right behind the longitudinal middleline of the body, a short vagina, two ovaries didelphic, amphidelphic, and ellipsoidal oviles, short and conical appendagetail. The male presentes one spicule slightly curved, its gubernaculum is absent and its genital papillae is arranged in threepairs: two large ventral preanal pairs and one ventral postanal pair.


2008 ◽  
Vol 53 (3) ◽  
Author(s):  
Fabiana Drago ◽  
Lía Lunaschi

AbstractDuring the course of a study on the endohelminth parasites of birds, specimens of an undescribed species of Tylodelphys Diesing, 1850 (Diplostomidae) were collected from the wood stork, Mycteria americana L., from Formosa Province, Argentina. Tylodelphys brevis sp. nov. can be distinguished from the other Neotropical species of this genus, T. elongata, T. americana and T. adulta, principally by the smaller size of the body (570–851 μm), by the fewer eggs in the uterus (1–2) and by the smaller ratio of body to egg length (6–8). This is the second report of an adult of the genus Tylodelphys from Argentina and the first record of a digenean species parasitizing Mycteria americana in this country.


Zootaxa ◽  
2012 ◽  
Vol 3232 (1) ◽  
pp. 62 ◽  
Author(s):  
GUSTAVO R. SPINELLI ◽  
MARÍA M. RONDEROS ◽  
CARLA G. CAZORLA

Bezzia ventanensis Spinelli, a new Neotropical species, is described and illustrated based on pupae and adults. Pupae werecollected from muddy water from the edge of a stream margin in Sierra de la Ventana, Buenos Aires province, Argentina.Specimens were carried back to the laboratory and conditioned in vials until adult emergence. This new species is similarto Bezzia brevicornis (Kieffer), from which it can be mainly distinguished by the female adult bearing two well developed spermathecae, and by the pupal respiratory organ with 13–15 spiracles.


Zootaxa ◽  
2020 ◽  
Vol 4763 (1) ◽  
pp. 125-137
Author(s):  
CATALINA DI ROSSI ◽  
MICHEL SCIBERRAS ◽  
VERONICA N. BULNES

A new species of amphipod, Ptilohyale corinne sp. nov. (Hyalidae) is described from the Bahía Blanca estuary (38°53’S, 62°07’W) in Buenos Aires Province, Argentina. Ptilohyale corinne sp. nov. can be differentiated from its valid congeners by having two posterior marginal cusps on coxa 2 and 3, and asymmetrical telson lobes with a particular combination of setae: each lobe with three dorsal plumose setae and one seta on inner margin. This is the first record of Ptilohyale in South America. Additionally a key to the valid species of the genus is provided 


Zootaxa ◽  
2008 ◽  
Vol 1818 (1) ◽  
pp. 56
Author(s):  
SERGUEI V. TRIAPITSYN ◽  
DANIEL A. AQUINO

The little known Neotropical genus Polynemula Ogloblin (Mymaridae) and its type species P. rufosignata Ogloblin are redescribed based on the type material and a recently collected female specimen from Buenos Aires Province, Argentina. A new species of Polynema Haliday from the newly defined pallidiventre species group of Polynema (Doriclytus Foerster), P. (D.) nupogodi sp. n., is described from Argentina and the only other species in this new group, P. (D.) pallidiventre (Ogloblin), is redescribed. A key to the two species of this group is provided.


Zootaxa ◽  
2017 ◽  
Vol 4281 (1) ◽  
pp. 225
Author(s):  
SUSANA PARADELL ◽  
MARÍA INÉS CATALANO ◽  
JULIÁN PETRULEVIČIUS

The genus Rhabdotalebra Young is reviewed, including description of a new species, R. albinoi n. sp., from Buenos Aires province, Argentina. A detailed morphological description and illustrations of the new species are provided. A key of all known Rhabdotalebra species is provided to facilitate the comparison of the new species with those previously known, based on pattern coloration and male and female genitalia, is given. Some field observations on its biology are also provided. 


Zootaxa ◽  
2019 ◽  
Vol 4712 (3) ◽  
pp. 365-376
Author(s):  
JANS MORFFE ◽  
NAYLA GARCÍA ◽  
KOICHI HASEGAWA ◽  
RAMON A. CARRENO

Aoruroides chubudaigaku n. sp. (Nematoda: Oxyuridomorpha: Thelastomatidae) is described from the wood-burrowing cockroach Panesthia angustipennis spadica (Shiraki, 1906) (Blattodea: Blaberidae: Panesthiinae) from Aichi prefecture, Japan. Females of A. chubudaigaku n. sp. are similar to A. costaricensis Carreno & Tuhela, 2011 by the position of the nerve ring at level of the first third of the isthmus, the body length and the comparative measurements of the oesophagus and tail. They differ by the position of the excretory pore and the vulva. The males of A. chubudaigaku n. sp. are characterized by the absence of ornamentations in the cervical cuticle and the nerve ring located at the posterior third of the corpus. In addition, the males of the new species can be differentiated by the length of the body and the comparative lengths of the oesophagus and the tail. The phylogeny of A. chubudaigaku n. sp. is inferred by the D2-D3 domains of the LSU rDNA and the validity of the genus Aoruroides Travassos & Kloss, 1958 is discussed on the basis of both molecular and morphological data. This constitutes the first species of the genus Aoruroides described from the Japanese archipelago. 


Zootaxa ◽  
2020 ◽  
Vol 4822 (2) ◽  
pp. 277-284
Author(s):  
FERNANDA A. SUPELETO ◽  
BERNARDO F. SANTOS ◽  
ALEXANDRE P. AGUIAR

Cestrus itatiensis sp. nov., from the Brazilian Atlantic Forest, is described and illustrated. This is the southernmost record for the genus and the first record in Brazil. The new species is characterized by having the body reddish brown; a narrow yellow stripe along eye margin on supra-clypeal area, reaching briefly the supra-antennal area; transverse carina of propodeum complete and stout; postpetiole and T2–8 progressively dark brown towards apical margin in a somewhat triangular pattern; and apex of dorsal valve of ovipositor with nine distinct teeth. Extensive sampling suggest this is a rare species. 


1972 ◽  
Vol 50 (11) ◽  
pp. 1457-1462 ◽  
Author(s):  
M. A. Latheef ◽  
A. R. Seshadri

Cruznema brevicaudatum is described as a new species because its lips are not distinctly set off, and it has nine pairs of tubular and one pair of pyriform bursal ribs. Two diverticula of unknown function occur at the junction of the vas deferens and seminal vesicle. This is the first record of a Cruznema as an insect associate. Indiana coimbatoriensis is recognized as a new species on the basis of size and arrangement of spines on the body and lateral field. Only females were found.


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