Publications by authors named "Margareth Cardozo-De-Almeida"

In Brazil, (Blanchard, 1843) is the most important species in epidemiological terms in the State of Rio Grande do Sul, due to its wide geographical distribution in this state, followed by (Jurberg, Rocha & Lent, 1998) and (Stål, 1859). Structural analysis of the ventral region of the head (rostrum and buccula), thorax (stridulatorium sulcus and scutellum), and external female genitalia of adults of , , and is described here. Scutellum, head, rostrum, and part of the thorax (prosternum) containing the stridulatory sulcus, in both male and female, and the sixth abdominal segment of the female, containing the external genitalia, were processed for scanning electron microscopy studies as routine.

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Article Synopsis
  • Triatoma carcavalloi is a wild insect species found alongside other related species in rural Rio Grande do Sul, Brazil, which can transmit Trypanosoma cruzi.
  • The study measured aspects like incubation periods, blood meal patterns, and mortality rates, revealing a 22.7-day incubation period, with nymphs typically feeding about 13.4 times during growth.
  • Findings showed that 3rd stage nymphs had the highest mortality and that adults lived an average of 25.6 weeks, providing new insights into the biology and life cycle of T. carcavalloi.
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Article Synopsis
  • The study focused on the eggs of three species of Triatoma, analyzing their body and operculum structure through microscopy.
  • Triatoma rubrovaria is highlighted as a significant vector for Trypanosoma cruzi in rural Rio Grande do Sul, with T. circummaculata also being important.
  • Notable morphological differences were found, including variations in egg size and perforation counts, which could aid in better understanding and monitoring these vectors in human habitats.
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Triatoma carcavalloi is considered a rare Chagas disease vector often collected inside domiciles in Rio Grande do Sul State. In this Brazilian state, T. carcavalloi has been collected in the same ecotope (rock piles) with two other species (T.

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Histological and ultrastrucutural alterations in the midgut of Aedes albopictus larvae infected with Bacillus thuringiensis var. israelensis (Bti) were observed by light and transmission electron microscopy (TEM). Two formulations of Bti were used: granulated and powder, with 0.

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This paper presents a list of 131 Mallophaga type specimens deposited in the Werneck Collection of Instituto Oswaldo Cruz, Rio de Janeiro, RJ, Brazil. It includes 69 holotypes, 62 allotypes, 683 paratypes, 1 syntype and 2 neoparatypes, distributed among 6 families and 35 genera. The types are listed with their respective data and literature.

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