scholarly journals Feather mites (Acari: Astigmata) of captive Psittaciformes in Brazil

2018 ◽  
Vol 70 (3) ◽  
pp. 843-849
Author(s):  
D.M. Pereira ◽  
F.A. Hernandes ◽  
A.C.G. Santos ◽  
R.M.S. Nogueira

ABSTRACT Feather samples were obtained from the following Psittaciformes birds: Amazona amazonica, Amazona aestiva, Aratinga jandaya, Brotogeris spp., Ara ararauna and Ara chloropterus (total of 37 individuals). These birds were housed at the Wild Animal Screening Center of Maranhão, São Luís, Brazil. Four feathers were taken from the following regions: head, back, wings, belly/breast, thighs, and tail/covert. Mites were found on 17 birds (45.94%). Astigmatid mites belonging to the genera Fainalges (Xolalgidae), Chiasmalges (Psoroptoididae) and Tanyaralichus (Pterolichidae) were identified. The highest dominance coefficient was for the mite Fainalges sp. (DC= 96.29). Chiasmalges sp. was obtained only from Ara chloropterus, and Tanyaralichus was found in A. aestiva. The genus Fainalges was obtained from all the species of Psittaciformes studied, except for A. ararauna. In evaluating mite density according to body region, statistical differences were found between the back and wing regions (P= 0.041), back and thighs (P= 0.02), wings and tail (P= 0.002), belly and tail (P= 0.031) and thighs and tail (P= 0.001). The morphological variations observed in Fainalges spp. suggested the existence of three species that probably have not been described yet. This was the first record of the genus Tanyaralichus in Brazil.

Check List ◽  
2017 ◽  
Vol 13 (3) ◽  
pp. 2106
Author(s):  
Diego G. Pádua ◽  
Marcio L. Oliveira

The parasitoid wasp Clistopyga melanoptera Castillo, Sääksjärvi & Bordera, 2016 was described recently and was known only from the type locality, Cusco, Peru. Here we provide a first record of this species for Brazil, at Manaus, 1700 km from the type locality. A distribution map, images and morphological variations are provided.


Zootaxa ◽  
2019 ◽  
Vol 4576 (2) ◽  
pp. 201 ◽  
Author(s):  
COMLAN EUGÈNE DESSOUASSI ◽  
PHILIPPE A. LALÈYÈ ◽  
CÉDRIC d’UDEKEM D’ACOZ

The Indo-Pacific portunid, Charybdis hellerii (A. Milne-Edwards, 1867), is a crab species native to the Indian and Western Pacific Oceans and has previously colonized the Eastern Mediterranean and the Western Atlantic. It is now recorded in the Eastern Atlantic, on the coast of Benin, where a thriving population has established. This invasive and widely distributed species exhibits morphological variations within and between populations, which are discussed in detail. Its current distribution is presented, and its future expansion along the West African coast and future impact on coastal ecosystems and local fisheries are the object of tentative forecasts. Illustrations of sexually mature specimens from different sizes and regions are presented, and their allometric, individual and geographical variations are discussed. A new synonymy and a new account on the taxonomy and the biology of the species are presented. Illustrations of the lectotype and the paralectotype of C. hellerii are also provided for the first time. Charybdis spinifera (Miers, 1884), C. merguiensis (De Man, 1887) and C. vannamei Ward, 1941 are here treated as subjective junior synonyms of C. hellerii. The holotype of C. spinifera and two syntypes of C. merguiensis are illustrated. 


2015 ◽  
Vol 24 (1) ◽  
pp. 105-107 ◽  
Author(s):  
Alice Graciela Rodriguez Suárez ◽  
Tatiana Cheuiche Pesenti ◽  
Márcia Raquel Pegoraro de Macedo ◽  
Carolina Silveira Mascarenhas ◽  
Gertrud Müller Antunes

Procyon cancrivorus is a wild animal that is found from Central America to Uruguay and northeastern Argentina. It is one of the least studied carnivore species in Brazil. For the purpose of identifying helminths that parasitize P. cancrivorus, individuals of this species that had been run over and killed by motor vehicles were collected from highways in the southern part of the state of Rio Grande do Sul. At necropsy, their organs, along with organ contents and mucous membranes, were examined for parasite collection. The nematodes found in the stomachs of these Procyonidae were cleared with lactophenol and Chandleronema longigutturata was identified. This report provides the first record of occurrences of C. longigutturata in the Neotropical region and its parasitism in P. cancrivorus.


Acarologia ◽  
2020 ◽  
Vol 60 (4) ◽  
pp. 878-891
Author(s):  
Sergey V. Mironov ◽  
Terry D. Galloway

Two new feather mite species, Nycteridocaulus sulcatus sp. n. and Tyranniphyllodes empidonicus sp. n. (Astigmata: Proctophyllodidae), are described from the Yellow-bellied Flycatcher, Empidonax flaviventris (Passeriformes: Tyrannidae), in Canada. The clearest distinguishing characteristic of N. sulcatus is the structure of the supranal concavity in males, which is parallel-sided, heavily sclerotized and opened posteriorly. Tyranniphyllodes empidonicus readily differs from the only previously known species, T. pitangi Hernandes et al. 2007, by the absence of setae d1 in both sexes and in having strongly elongated epimerites IVa and the genital sheath in males not extending to the tip of the aedeagus, and long anterolateral extensions of the prodorsal shield in females. This is the first record of the genus Tyranniphyllodes in North America.


Crustaceana ◽  
2013 ◽  
Vol 86 (13-14) ◽  
pp. 1564-1571 ◽  
Author(s):  
Shusen Shu ◽  
Feizhou Chen ◽  
Xiaoyong Chen

Arctodiaptomus (Haplodiaptomus) parvispineus Kiefer, 1935, is a rare and incompletely described species, hitherto known from Himalayan glacial lakes in India. It is now recorded from ponds in Potatso National Park, Yunnan, China and redescribed herein. This is the first record of A. (H.) parvispineus from China. In addition to the descriptions, the morphological variations in the specimens found are briefly discussed.


2019 ◽  
Vol 59 ◽  
pp. e20195921 ◽  
Author(s):  
Carlos López ◽  
Miriam Steinitz-Kannan ◽  
Georgia Stamou ◽  
Evangelia Michaloudi ◽  
Spiros Papakostas ◽  
...  

The presence of the rotifer species Brachionus rotundiformis from the B. plicatilis species complex in Lake Arcturo, a saline lake in the Genovesa Island of the Galápagos Islands, is here reported. This is the first record of the species for the rotifer fauna of Ecuador as well as of the species complex to the Galápagos Islands. This finding is consistent with the idea of high dispersion capacity, and of cosmopolitan distribution of this species complex. Because Genovesa Island is uninhabited, passive transport by wind currents and zoochory by migrant birds seem to emerge as the most plausible factors in this process of colonization. Integrative studies on the morphological variations, genetic, molecular, and ecological aspects are still required to further understand the process of dispersion and the ecology of this member of the B. plicatilis species complex in this remote and isolated locality, and the exact taxonomical position of the island’s population to the other members of the complex.


2021 ◽  
Vol 37 (3) ◽  
pp. 161-163
Author(s):  
José I. Torres-Avendaño ◽  
Edith H. Torres-Montoya ◽  
José M. Zazueta-Moreno ◽  
Juan J. Ríos-Tostado ◽  
Reyna L. López-Mendoza ◽  
...  

ABSTRACT Mosquito larvae were collected in the urban area of the city of Culiacan, Sinaloa, in September of 2020. The immature stages were placed in emergence containers and fed with Aedes aegypti larvae. The adults that emerged from the immature stages were mounted on insect pins and characterized based on their morphology. The species corresponded morphologically to Toxorhynchites moctezuma, making this the first report of the species for the state of Sinaloa, Mexico. Similarities and morphological variations are discussed with previous analysis for this species.


Author(s):  
Pamela Murillo ◽  
Julio Arias ◽  
Hugo Aguilar

The population size at which Tyrophagus putrescentiae can produce damage on anthurium plants (Anthurium sp.), cultivated in vitro, was determined. Symptoms caused by these mites on the plants are described. Two anthurium varieties coded as ANMIRO and ANWHGE, were cultivated in a Murashige and Skoog medium for four weeks. The treatments for each variety were as follows: a) Absolute Control (AC), b) fungus inoculated in the cultured medium (CF), c) fungus on leaves + mites (FLM), d) fungus in medium + mites (FMM), and e) only mites (OM). Mite density within the vessels increased through time. Fifty-five days after the first evaluation, the highest amount of injury was observed in the treatments FLM, FMM, and OM. The observed symptoms were holes on the foliar lamina produced by the feeding of mites until complete plant deterioration. According to the prediction model, when there is an average population close to 62 mites per vessel, it would be expected to find 20% damaged. The probability of observing damage on the variety ANWHGE was 1.7 times higher than on the variety ANMIRO. Although T. putrescentiae is a known contaminant in tissue culture laboratories as it carries bacteria and fungi on its body, this is the first record of this species causing direct damage to plants cultivated in vitro.


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