Diotaiuti L, Dias J C
Mem Inst Oswaldo Cruz. 1984 Jul-Sep;79(3):293-301. doi: 10.1590/s0074-02761984000300002.
Eighty-one "macaubeiras" palm-trees (Acrocomia sclerocarpa) from the periphery of Belo Horizonte city were cut down and dissected between April 1979 and July 1980. 60.5% of the trees were positive for R. neglectus and 463 specimens of this insect were collected, providing a mean rate of 9,45 individuals for positive palm-trees. R. neglectus seems to present a single annual generation in this region, but evidence was obtained that two generations may occur. Its spawn period is related to the hot months of the year, when younger insects prevail over the adults. This observation suggests that higher population densities are related to better feeding conditions and to minor densities of specific predators such as Telenomus sp., ants, spiders, hemipters, scorpions and pseudo scorpionidae. The Trypanosoma cruzi infection index was 15,9%, suggesting that R. neglectus is a very important vector of silvatic infections in the region. Marsupials are the main vertebrate source of T. cruzi infection. R. neglectus is strongly associated with palm-trees in the area, and with the various species of birds that haunt them. So far, there is no evidence suggesting R. neglectus to be an important vector of human Chagas' disease in the region.
1979年4月至1980年7月间，对贝洛奥里藏特市周边的81棵“马考贝拉斯”棕榈树（硬果柯拉豆棕）进行了砍伐和解剖。60.5%的树木对忽视罗蠓呈阳性反应，共采集到463只该昆虫标本，阳性棕榈树的平均虫口密度为9.45只。在该地区，忽视罗蠓似乎一年繁殖一代，但有证据表明可能出现两代。其产卵期与一年中的炎热月份有关，此时幼龄昆虫数量多于成年昆虫。这一观察结果表明，较高的种群密度与更好的觅食条件以及特定捕食者（如长腹黑卵蜂、蚂蚁、蜘蛛、半翅目昆虫、蝎子和拟蝎科）的低密度有关。克氏锥虫感染指数为15.9%，这表明忽视罗蠓是该地区野生动物感染的重要传播媒介。有袋动物是克氏锥虫感染的主要脊椎动物来源。忽视罗蠓与该地区的棕榈树以及栖息在树上的各种鸟类密切相关。到目前为止，没有证据表明忽视罗蠓是该地区人类恰加斯病的重要传播媒介。
