Biological cycle and preliminary data on vectorial competence of Triatoma boliviana in laboratory conditions

Life cycle and vectorial competence of Triatoma williami (Galvão, Souza e Lima, 1965) under the influence of different blood meal sources

“…Since the hematophagy and the possibility of being infected by T.cruzi are not sufficient to determine the vectorial capacity of a species, there are other necessary requirements associated with the degree of anthropophily and time-lapse to defecation (Dujardin, 2011;Durán et al, 2014;Klotz et al, 2009). Some aspects of the hematophagy, of the infection rate and of the anthropophily of T. williami previously seen are close to those of species that are known to be incriminated in the transmission of T. cruzi to humans.…”

“…As for in the adult stage, both females and males of T. williami showed higher intake velocities than that of the T. infestans (Durán et al, 2014). The speed in which the insect has the meal is an important attribute to the vectorial capacity, increasing the probability of survival of the species (Guarneri et al, 2000b).…”

“…The bionomic characterization of wild species that possibly may invade anthropic environments is important to evaluate the efficiency of these insects as vectors of T.cruzi and also to support the modeling of control strategies (Cardozo-de- Almeida et al, 2014;Durán et al, 2014). In fact, a large number of studies about bionomic and behavioral aspects of the Triatomines suggests an increasing interest in establishing control measures and also reflects their use as an excellent biological models for studies about insect hematophagy and physiology (Lazzari et al, 2013).The life cycle of triatomines varies according to the species, the environmental condition and blood meal source (Carbajal de la Fuente et al, 2010;Schofield, 1985), so the general goals of this study were to describe, for the first time, the biological cycle of T.…”

Importance of Hybrids of <i>Meccus phyllosomus mazzottii</i>, and <i>M. p. pallidipennis</i>, and <i>M. p. phyllosomus</i> to the Transmission of <i>Trypanosoma cruzi</i> in Mexico

“…Similarly short defecation delays were recorded for T. rubida, T. protracta, T. recurva, and the 5th-instar nymphs of T. boliviana Martá ƒnez, Ch áavez, Sossa, Aranda, Vargas, and Vidaurre (30)(31)(32)35). Zeled áon et al (34) proposed that triatomines that defecate before 10 min postfeeding should be considered potentially effective transmitters of T. cruzi because they are usually in contact with their host for at least that period.…”

On triatomines, cockroaches and haemolymphagy under laboratory conditions: new discoveries

“…In Bolivia, two species of triatomines found inside and/or around human dwellings, Eratyrus mucronatus and Triatoma boliviana , were also frequently found in the presence of large cockroaches of the Blaberus sp. (8 cm long for adults) in the subfamily Blaberinae ( Martínez et al 2007 , Depickère et al 2012 , Durán et al 2014 ). Interestingly, both species naturally demonstrate a null or weak level of infection by T. cruzi [proportion of infected insects: E. mucronatus : 0% by microscopical observation of 68 faeces ( Noireau et al 1995 ); 19.1% by polymerase chain reaction (PCR) test of 68 faeces ( Noireau et al 1995 ); 0% by microscopical observation of 75 faeces ( Depickère et al 2012 ); T. boliviana : 0% by microscopical observation of 325 faeces (Depickère, pers.…”