Departamento de Epidemiologia, Faculdade de Saúde Pública, Universidade de São Paulo, São Paulo, SP, Brasil, 01246-904.
Mem Inst Oswaldo Cruz. 2009 Sep;104(6):823-50. doi: 10.1590/s0074-02762009000600004.
The Anopheles (Nyssorhynchus) albitarsis complex includes six species: An. albitarsis, Anopheles oryzalimnetes Wilkerson and Motoki, n. sp., Anopheles marajoara, Anopheles deaneorum, Anopheles janconnae Wilkerson and Sallum, n. sp. and An. albitarsis F. Except for An. deaneorum, species of the complex are indistinguishable when only using morphology. The problematic distinction among species of the complex has made study of malaria transmission and ecology of An. albitarsis s.l. difficult. Consequently, involvement of species of the An. albitarsis complex in human Plasmodium transmission is not clear throughout its distribution range. With the aim of clarifying the taxonomy of the above species, with the exception of An. albitarsis F, we present comparative morphological and morphometric analyses, morphological redescriptions of three species and description of two new species using individuals from populations in Brazil, Paraguay, Argentina and Venezuela. The study included characters from adult females, males, fourth-instar larvae, pupae and male genitalia of An. albitarsis, An. marajoara, An. deaneorum and An. oryzalimnetes n. sp. For An. janconnae n. sp. only characters of the female, male and male genitalia were analyzed. Fourth-instar larvae, pupae and male genitalia characteristics of all five species are illustrated. Bionomics and distribution data are given based on published literature records.
按蚊（Nyssorhynchus）复合体包括六个物种：按蚊（An. albitarsis）、稻按蚊（Anopheles oryzalimnetes Wilkerson and Motoki, n. sp.）、马雅若按蚊（Anopheles marajoara）、德氏按蚊（Anopheles deaneorum）、詹康按蚊（Anopheles janconnae Wilkerson and Sallum, n. sp.）和按蚊（An. albitarsis F.）。除了德氏按蚊外，该复合体的物种仅使用形态学是无法区分的。该复合体物种之间的问题区分使得按蚊属（An. albitarsis s.l.）的疟疾传播和生态学研究变得困难。因此，在其分布范围内，按蚊属（An. albitarsis s.l.）复合体的物种是否参与人类疟原虫传播尚不清楚。为了阐明上述物种的分类学，除了按蚊（An. albitarsis F.）外，我们使用来自巴西、巴拉圭、阿根廷和委内瑞拉的种群进行了比较形态学和形态计量学分析、三个物种的形态重描述以及两个新物种的描述。该研究包括按蚊（An. albitarsis）、马雅若按蚊（An. marajoara）、德氏按蚊（An. deaneorum）和稻按蚊（An. oryzalimnetes n. sp.）的成年雌性、雄性、第四龄幼虫、蛹和雄性生殖器的特征。对于詹康按蚊（An. janconnae n. sp.），仅分析了雌性、雄性和雄性生殖器的特征。所有五个物种的第四龄幼虫、蛹和雄性生殖器特征均有插图。根据已发表的文献记录提供了生物生态学和分布数据。
