Menacanthus bonariensis new species (Phthiraptera: Menoponidae), parasitic on the White-bellied Sparrow, Zonotrichia capensishypoleuca (Todd, 1915) (Aves: Passeriformes: Fringillidae) in Buenos Aires Province, Argentina

Zootaxa ◽  
2003 ◽  
Vol 358 (1) ◽  
pp. 1 ◽  
Author(s):  
ARMANDO C. CICCHINO
Keyword(s):  
New Species ◽  
Buenos Aires ◽  
Geographical Area ◽  
Spatial Relationship ◽  
Coastal Areas ◽  
Buenos Aires Province ◽  
Zonotrichia Capensis ◽  
Spinous Processes ◽  
Subgenital Plate ◽  
Different Populations

The new species Menacanthus bonariensis is described and illustrated from specimens collected off Zonotrichia capensis hypoleuca (Todd, 1915) from coastal areas in the NE of Buenos Aires Province, Argentina. Morphologically the new species is close to M. robustus (Kellogg, 1896), but with larger females, longer ocular seta 19 and ventral spinous processes, greater number of setae on certain tergites and sternites, and fewer setae in the subgenital plate. Descriptions of the male, the three nymphal instars and the egg are also included, with comments on prevalence and spatial relationship with other species of lice of the genera Philopterus Nitzsch, 1818, Ricinus De Geer, 1778 and Machaerilaemus Harrison, 1916, which are found on this host in different populations of the geographical area mentioned above.

Redescription of Polynemula, with description of a new species of Polynema (Doriclytus) from Argentina (Hymenoptera: Mymaridae)

Zootaxa ◽  
2008 ◽  
Vol 1818 (1) ◽  
pp. 56
Author(s):  
SERGUEI V. TRIAPITSYN ◽  
DANIEL A. AQUINO
Keyword(s):  
New Species ◽  
Type Species ◽  
Buenos Aires ◽  
Species Group ◽  
Type Material ◽  
Buenos Aires Province ◽  
Female Specimen ◽  
A New Species

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.

scholarly journals A new species of Rhabdotalebra Young (Hemiptera: Cicadellidae: Typhlocybinae) associated with the guaran-guaran (Bignoniaceae: Tecoma stans L.) in Argentina

Zootaxa ◽  
2017 ◽  
Vol 4281 (1) ◽  
pp. 225
Author(s):  
SUSANA PARADELL ◽  
MARÍA INÉS CATALANO ◽  
JULIÁN PETRULEVIČIUS
Keyword(s):  
New Species ◽  
Buenos Aires ◽  
Female Genitalia ◽  
Morphological Description ◽  
Buenos Aires Province ◽  
Field Observations ◽  
Male And Female ◽  
A New Species

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. 

Tyranniphilopterus polioptilus new species (Phthiraptera: Ischnocera:  Philopteridae) parasitic on the Masked Gnatcatcher, Polioptila dumicola  (Passeriformes, Polioptilidae) in Argentina

Zootaxa ◽  
2007 ◽  
Vol 1547 (1) ◽  
pp. 43-50 ◽  
Author(s):  
ARMANDO C. CICCHINO
Keyword(s):  
New Species ◽  
Coastal Area ◽  
Buenos Aires ◽  
Buenos Aires Province ◽  
Body Measurements ◽  
Undescribed Species ◽  
Anterior Plate

Tyranniphilopterus polioptilus sp. nov. is described and illustrated from specimens collected off Polioptila dumicola dumicola (Vieillot, 1816) from two localities in the coastal area NE of Buenos Aires Province, Argentina. Morphologically the new species is similar to T. titicacae (Eichler & Freund, 1956) and several other undescribed species from the Tyrannidae, differing from all of them by proportions of the head and dorsal anterior plate, most body measurements, number of dorsal and ventral setae in both sexes, and number and arrangements of vulvar setae in females. Descriptions of the male, female, the three nymphal instars and the egg are also included. A list is presented of all known species of Tyranniphilopterus, arranged by host taxa.

scholarly journals A new large didelphid of the genus Thylophorops (Mammalia: Didelphimorphia: Didelphidae), from the late Tertiary of the Pampean Region (Argentina)

Zootaxa ◽  
2009 ◽  
Vol 2005 (1) ◽  
pp. 35-46 ◽  
Author(s):  
FRANCISCO J. GOIN ◽  
NATALIA ZIMICZ ◽  
MARTÍN DE LOS REYES ◽  
LEOPOLDO SOIBELZON
Keyword(s):  
New Species ◽  
Body Mass ◽  
Buenos Aires ◽  
Type Specimen ◽  
Didelphis Virginiana ◽  
Buenos Aires Province ◽  
Late Pliocene ◽  
Pampean Region ◽  
Late Tertiary ◽  
San Andres

We describe Thylophorops lorenzinii sp. nov. (Marsupialia, Didelphidae), the largest known didelphid opossum, living or extinct. Its type specimen comes from Late Pliocene levels at Punta San Andrés, southeastern Buenos Aires Province, Argentina. With an estimated body mass between 4.8 and 7.4 kg, it obviously surpasses that of the (up to now) largest didelphid, the living Didelphis virginiana Kerr. In addition to its larger size, the new species differs from T. chapalmalensis Ameghino and T. perplanus Ameghino in that its lower molars have more labially salient hypoconids and proportionally large hypoconulids which are not antero-posteriorly compressed.

A new species of the genus Ablabesmyia Johannsen from the Neotropics and description of the pupa of Ablabesmyia bianulata Paggi (Diptera: Chironomidae: Tanypodinae)

Zootaxa ◽  
2010 ◽  
Vol 2386 (1) ◽  
pp. 49 ◽  
Author(s):  
AUGUSTO SIRI ◽  
ANALÍA C. PAGGI
Keyword(s):  
New Species ◽  
Buenos Aires ◽  
Instar Larva ◽  
Color Pattern ◽  
Fourth Instar ◽  
Buenos Aires Province ◽  
Fourth Instar Larva ◽  
Male Adult ◽  
A New Species ◽  
Male Pupa

The male, pupa and fourth instar larva of Ablabesmyia platensis sp. n. from La Plata, Buenos Aires province, Argentina and the pupa of A. bianulata Paggi collected in southern Argentina are described and figured. The male adult diagnosis of A. bianulata is emended, and the aedeagal complex is redescribed and photographed. Differences in the aedeagal complex and the color pattern of the pupa mainly distinguish these two species. The new species is also compared with the Neotropical A. oliveirai Oliveira et Gessner.

scholarly journals Description of a new species of Dolichorchis (Digenea, Diplostomidae) in the cocoi heron, Ardea cocoi (Aves, Ardeidae), from Argentina

2006 ◽  
Vol 51 (1) ◽  
Author(s):  
Lía Lunaschi ◽  
Fabiana Drago
Keyword(s):  
New Species ◽  
Genital Pore ◽  
Buenos Aires ◽  
Buenos Aires Province ◽  
Intestinal Bifurcation ◽  
Posterior Testis ◽  
A New Species

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).

Review of the Sarcophaginae (Diptera: Sarcophagidae) of Buenos Aires Province (Argentina), with a key and description of a new species

Zootaxa ◽  
2010 ◽  
Vol 2575 (1) ◽  
pp. 1 ◽  
Author(s):  
PABLO RICARDO MULIERI ◽  
JUAN CARLOS MARILUIS ◽  
LUCIANO DAMIÁN PATITUCCI
Keyword(s):  
Life History ◽  
New Species ◽  
Buenos Aires ◽  
Junior Synonym ◽  
Buenos Aires Province ◽  
Adult Males ◽  
Males And Females ◽  
First Time ◽  
A New Species

Thirty-nine species of Sarcophaginae are recorded from Buenos Aires Province (Argentina). A new species, Microcerella asymmetrica sp. nov., is described. Females of Oxysarcodexia bicolor Lopes, O. marina Hall, and Sarcophaga (Lipoptilocnema) koehleri Blanchard are described for the first time. Four nomenclatorial actions are reported: Sarcohelicobia elegans Blanchard is established as a new junior synonym of Nephochaetopteryx cyaneiventris Lopes, and lectotypes are designated for Oxysarcodexia delpontei Blanchard [a junior synonym of Oxysarcodexia paulistanensis (Mattos)], Sarcophaga argentina Brèthes [a junior synonym of Sarcophaga (Liopygia) argyrostoma (Robineau-Desvoidy)], and Neobellieria brethesi Blanchard [a junior synonym of Sarcophaga (Neobellieria) polistensis Hall]. Blaesoxipha (Tephromyia) hospes (Aldrich), Peckia (Euboettcheria) florencioi (Prado & Fonseca), Ravinia advena (Walker), R. aureopyga (Hall) and Sarcodexia lambens (Wiedemann) are newly recorded from Buenos Aires Province, and Udamopyga percita is newly recorded from Argentina. A key is presented to the adult males and females of 36 of the 39 species of Sarcophaginae recorded from Buenos Aires province. Notes on distribution, biology, life history and host records are also given.

Brood Parasitism in a Host Generalist, the Shiny Cowbird: II. Host Selection

The Auk ◽  
1986 ◽  
Vol 103 (1) ◽  
pp. 61-69 ◽  
Author(s):  
Paul Mason
Keyword(s):  
Host Selection ◽  
Brood Parasitism ◽  
Buenos Aires ◽  
Buenos Aires Province ◽  
Large Species ◽  
Brood Parasites ◽  
Molothrus Bonariensis ◽  
Zonotrichia Capensis ◽  
Almost All ◽  
Large Host

Abstract Host selection by brood parasitic Shiny Cowbirds (Molothrus bonariensis) was studied at two sites in Buenos Aires Province, Argentina. The eggs of the parasite are either spotted or immaculate, so host selection was studied with respect to egg type as well as to site. Immaculate eggs were rare at both sites. Cowbirds in this region prefer to parasitize nests of birds larger than themselves. This preference contrasts with that of almost all other brood parasites, and even that of Shiny Cowbirds in other parts of the species' range. One large species, the Chlk-browed Mockingbird (Mimus saturninus) was used frequently and consistently at both sites. At least two other large species (thrushes) were used at Site I, but neither was present at Site II. Cowbirds were more specialized on large hosts at Site I: only 9% of the spotted eggs were laid in nests of small birds at Site I, whereas 35% were laid in such nests at Site II. Small species, such as the Rufous-collared Sparrow (Zonotrichia capensis), were used to a greater extent at Site II than Site I (where some of the same species were not used at all). The shift to smaller hosts is probably a response to a change in the structure of the community; large host species are relatively less abundant at Site II. Rejecter species are large, and all were parasitized while many smaller accepter species were unmolested. Surprisingly, more immaculate eggs were laid in nests where they had little chance of successful incubation, rather than in nests of accepters. No evidence suggests that host races ("gentes") are formed. To the contrary, female cowbirds laying different egg types apparently select hosts in the same manner.

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