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Memórias do Instituto Oswaldo Cruz (2007) 102, 925-930

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José Alejandro Martínez-Ibarra, Ricardo Alejandre-Aguilar, Edgar Paredes-González, Miguel Alejandro Martínez-Silva, Miriam Solorio-Cibrián, Benjamín Nogueda-Torres, Francisco Trujillo-Contreras and Mónica Novelo-López (2007)
Biology of three species of North American Triatominae (Hemiptera: Reduviidae: Triatominae) fed on rabbits
Memórias do Instituto Oswaldo Cruz 102 (8), 925-930
Abstract: Aspects related to hatching, lifetime, number of blood meals for molting, mortality, feeding time, and postfeeding defecation delay were evaluated and compared in each instar of three North American Triatominae: Triatoma gerstaeckeri, Triatoma lecticularia and Triatoma protracta, all of them fed on rabbits. No significant differences (p > 0.05) were found among the three species regarding mean hatching rate, which was close to 20 days. Egg-to-adult development times were significantly shorter (p < 0.05) for T. lecticularia. Number of blood meals for molting to next instar ranged from one to five for T. protracta, and from one to six for T. gerstaeckeri and T. lecticularia. Mortality rates were higher in younger nymphs of T. lecticularia and T. protracta, while rates in T. gerstaeckeri were higher in fifth-instar nymphs. Mean feeding time was longest in T. gerstaeckeri, followed by T. lecticularia. More than twice the number of T. gerstaeckeri nymphs completed the development process, if compared to the nymphs from the other two species. Defecation delay was less than 10 min for T. lecticularia, T. protracta and the youngest nymphs of T. gerstaeckeri. Results point out that these three species may be important potential vectors of Trypanosoma cruzi for human populations, in areas of Mexico where these species are currently present.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Full text of article
Database assignments for author(s): José Alejandro Martínez-Ibarra

Research topic(s) for pests/diseases/weeds:
general biology - morphology - evolution


Pest and/or beneficial records:

Beneficial Pest/Disease/Weed Crop/Product Country Quarant.


Paratriatoma lecticularia Mexico
Triatoma gerstaeckeri Mexico
Triatoma protracta Mexico