Area de Entomología Médica, Centro Universitario del Sur, Universidad de Guadalajara, Ciudad Guzmán, Jalisco, México.
Mem Inst Oswaldo Cruz. 2009 Dec;104(8):1125-31. doi: 10.1590/s0074-02762009000800009.
In seven studied communities of Western Mexico, triatomine specimens were sympatrically collected, some with atypical morphological characteristics in contrast to pure specimens, which were presumed to be hybrids. More than 200 specimens of Meccus pallidipennis and Meccus longipennis with brown-yellow markings on dorsal connexival segments were collected in Ahuacapán and Quitupan. In La Mesa, more than 60 specimens similar to Meccus picturatus in most morphological characteristics (including size) were collected, although they presented a largely yellowish corium like M. pallidipennis. Interfertility was proven between all of the studied wild hybrid specimens, as well as between all the experimental laboratory hybrids. Two different phenotypes (M. picturatus and M. longipennis) were obtained from crosses between M. picturatus x M. picturatus and M. longipennis x M. longipennis from the three studied localities in state of Nayarit as from La Mesita. Results support the hypothesis that the subspecific ranking of those triatomines may, therefore, be more appropriate because reproductive isolation has not been developed and complete interbreeding was recorded.
在墨西哥西部的七个研究社区中，共生地采集了锥蝽标本，其中一些标本具有与纯标本不同的非典型形态特征，被认为是杂种。在阿瓦卡潘和基特潘共采集到超过 200 只带有棕黄色背部连接段标记的苍白长角锥蝽和长角锥蝽。在拉梅萨，收集到了 60 多只与梅库斯·皮库拉图斯在大多数形态特征（包括大小）上相似的标本，尽管它们的角质层大部分呈黄色，类似于苍白长角锥蝽。所有研究的野生杂交标本以及所有实验室内杂交标本都证明了可育性。从纳亚里特州三个研究地点以及拉梅萨的 M. picturatus x M. picturatus 和 M. longipennis x M. longipennis 杂交中获得了两种不同的表型（M. picturatus 和 M. longipennis）。结果支持了这样一种假设，即这些锥蝽的亚种分类可能更为合适，因为尚未形成生殖隔离，并且记录到了完全的杂交。
