Chagas disease is one of the main vector‐borne diseases in Latin America, including Mexico. Understanding the biological parameters of the triatomine species is a crucial first step in estimating the epidemiologic importance of each group. The aim of this study was to compare the biological fitness of Meccus pallidipennis (Stål), M. bassolsae (Alejandre, Nogueda, Cortez, Jurberg, Galvão, Carcavallo) (Hemiptera: Reduviidae: Triatominae) and their laboratory hybrids, by estimating six biological parameters in order to increase the knowledge of the potential role of triatomine hybrids in the transmission of Trypanosoma cruzi to reservoir hosts. Biological parameters related to lifespan, number of blood meals to molt, mortality for each instar, percentage of females at the end of the cycle, number of eggs laid, and hatching of eggs in four cohorts of 100 specimens of M. pallidipennis, M. bassolsae, and their laboratory hybrids were evaluated and compared. In four of the six studied parameters (accumulative mortality, the percentage of females, mean number of laid eggs, and egg hatching), the hybrid cohorts had better fitness results than the parental cohorts. The increase in hybrid fitness found in our study could lead to an increase in the epidemiologic risks caused by transmission of T. cruzi to humans.

中文翻译：

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增强两个三atomine物种之间的杂交后代的适应性。

南美锥虫病是包括墨西哥在内的拉丁美洲主要媒介传播疾病之一。了解三松散菌素物种的生物学参数是评估各组流行病学重要性的关键的第一步。这项研究的目的是通过估计六种生物学生物来比较麦加氏菌（Stål），巴索氏杆菌（Alejandre，Nogueda，Cortez，Jurberg，Galvão，Carcavallo）（半翅目：Reduviidae：Triatominae）及其实验室杂种的生物学适应性。参数，以增加对三氢嘧啶杂种在克氏锥虫传播中潜在作用的认识给水库的主人。有关寿命生物参数，血餐蜕皮的数目，死亡率为每龄，女性在循环结束时的百分比，蛋的数目铺设，并在100个样品中的4组群的蛋孵化M. pallidipennis，M.评估和比较了bassolsae和它们的实验室杂种。在六个研究参数中的四个（累积死亡率，雌性百分比，产卵平均数量和卵孵化率）中，杂种队列的适应性结果优于父母队列。在我们的研究中发现，混合适应度的提高可能导致克鲁斯锥虫传播给人类而引起的流行病学风险增加。