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Eutrombicula alfreddugesi is prevalent across eastern and central North America. There is also evidence of E. alfreddugesi scattered across Central and South. Abstract. I collected larvae of Eutrombicula alfreddugesi for the first time parasitizing Gerrhonotus infernalis, Sceloporus poinsetti, S. jarrovii, and S. grammicus. Padrões de parasitismo por Eutrombicula alfreddugesi (Oudemans) (Acari, Trombiculidae) em três espécies de Tropidurus Wied (Squamata, Tropiduridae) do.

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The lifespan of E. Tropidurus torquatus presented the most similar distribution of ectoparasites in the three major areas of the body neck, axillary, and inguinal region. Activity was greatest during the late afternoon-early evening, between and hours CDST. One possibility is that guarding and protecting a set of mites may play an important role in decreasing the chances of parasite exchanges and transmission of diseases.

After getting onto a host, the larvae move around very rapidly until they find a fold or another suitably secluded area to begin feeding. The length of this parasitic association can range from two to 48 days and depends on whether the host is warm-blooded alfreddugeei cold-blooded.

However, as proposed by ARNOLDinvestment in specialized areas for mite installation could save more important areas of the lizard’s body against infestation, actually allfreddugesi the overall damage caused by the parasites. Of the three species, T. The relationship between skin folds and pockets, and the gradient of intensity of infestation alfreddugezi indicate a drawback in possessing these structures. Larval populations appeared in late April through early May, peaked in abundance ektrombicula late June and early July, diminished through late summer, and disappeared in midautumn as the ground began to freeze.

Between about and hours, larval E. The snout-vent length SLV of each specimen was measured using a digital caliper to the nearest 0. After engorging and leaving alfrddugesi host, the larva is active for a few more days before it develops into a protonymph. They settle in the fold and begin feeding.


In southeastern Brazil, patterns of infestations by mites have been investigated in lizard species inhabiting restinga coastal sand dune habitats.

Trombicula alfreddugesi – Wikipedia

In Eutrombicula alfreddugesithere is no parental investment made by either males or females. Sign In Forgot password? The postlarval stages of E.

This may be evidenced by studies conducted using freshly collected and killed specimens of T. Skin folds in gekkonid genus Rhacodactylus: Fire and grazing are important in the long-term maintenance of grasslands. In order to evaluate possible site fidelity, the body of the lizard was divided in 15 sites of parasite infestation Fig.

Citing articles via Web of Science Adults can reach lengths upto one mm. The protonymph then develops into an active deutonymph which is a free-living predator. Adult females, upon encountering these spermatophores, insert them into their genital eutrombiculz. Direct optimization, descriptive efficiency, and sensitivity analysis of congruence between molecular data and morphology.

Eutrombicula alfreddugesi

Eutrombicula alfreddugesi males and females eutrombicupa not even necessarily interact with each other, much less their larval offspring. The larval stage of E. We observed a tendency of an inverse correlation between principal component values representing the number of mites in the neck and inguinal region, when these were contrasted with those for the axillary region.

To resist Bdellidae mites, chigger mites have evolved a useful anti-predator behavior. Eutrombicula alfreddugesi has a few means euutrombicula perceiving its environment.

Tropidurus itambere Rodrigues, was the most heavily parasitized species mean intensity of infestation: Abstract Microclimatic and vegetative effects on the population size and alfreddugezi patterns of larval Eutrombicula alfreddugesi Oudemans, Acari: Upon sensing a host, the larvae move up the substrate and attach on to them.


The larvae of Eutrombicula alfreddugesi parasitize a variety of reptile, mammal, and bird hosts. Differences in prevalence and intensity of infestation may be related to oscillations in mite populations from different habitats of the lizards.

Don’t have an account? Extensive savannas are found in parts of subtropical and tropical Africa and South America, and in Australia. Ewing, ; Loomis, The larvae of E.

Eutrombicula Alfreddugesi

The analysis did not indicate differences in intensity of infestation between sexes for any of the species. They are found primarily in soil, surface litter, and decomposing tree trunks. If you originally registered with a username please use that to sign in. Oxford University Press is a department of the Alreddugesi of Oxford.

The relationship between social life aggregation of lizards and damage caused by parasites has also been explored. Trombiculidae in a Forest Edge Ecosystem R.

The prelarvae then develop into larvae, which is an active, parasitic stage for E. Males have been observed depositing spermatophores onto the substrate without the presence of females. The mite pockets of lizards. Microclimatic and vegetative effects on the population size and activity patterns of larval Eutrombicula alfreddugesi Oudemans, Acari: Here we discuss the patterns of parasitism by larvae of Eutrombicula alfreddugesi on three species of Tropidurus Wied, from Cerrado habitat of Central Brazil, evaluating parameters such as the intensity and prevalence of parasitism, and parasite distribution over the hosts’ bodies.

The prevalence of E.

Eutrombicula alfreddugesi | arachnid |

Low temperatures have adverse effects on E. At every stage, E. Butterflies have complete metamorphosis, grasshoppers have incomplete metamorphosis. Instead, they feed on haemolymph or digested host tissue.