Dujardin J P, Le Pont F, Martinez E
UMR IRD-CNRS 9926, Av. Agropolis, 911 BP 5045, 34032 Montpellier, France.
Parasite. 2004 Jun;11(2):211-7. doi: 10.1051/parasite/2004112211.
We describe a multivariate metric comparison of three sandfly species showing strong differences in size, which questions the geographical distribution of one of them. Two species are represented by a single population (L. robusta and L. guilvardae) and one by two populations (L. serrana). All of them belong to the series serrana (Diptera, Psychodidae, Phlebotominae). The morphometric data confirm that L. guilvardae is a distinct species. However, they suggest that L. robusta and L. serrana in Ecuador are the same taxon, and that it is distinguishable from the population of L. serrana in Bolivia. A multilocus enzyme electrophoresis analysis comparing L. serrana in Bolivia and L. robusta in Ecuador adds further evidence that these two populations are distinct species. Thus, our data seem to indicate that, in Ecuador, the population previously identified as L. serrana is actually the same species as the allopatric population previously identified as L. robusta. Accepting L. serrana in Ecuador as small-sized L. robusta, the resulting geographic distribution of this latter becomes in closer agreement with ecology and epidemiology.
我们描述了三种白蛉的多变量度量比较，这三种白蛉在大小上存在显著差异，这对其中一种白蛉的地理分布提出了质疑。两种白蛉由单一群体代表（粗壮白蛉和吉尔瓦德白蛉），一种由两个群体代表（塞拉诺白蛉）。它们都属于塞拉诺系列（双翅目，蛾蠓科，白蛉亚科）。形态测量数据证实吉尔瓦德白蛉是一个独特的物种。然而，数据表明厄瓜多尔的粗壮白蛉和塞拉诺白蛉是同一分类单元，并且它与玻利维亚的塞拉诺白蛉群体有区别。一项比较玻利维亚的塞拉诺白蛉和厄瓜多尔的粗壮白蛉的多位点酶电泳分析进一步证明这两个群体是不同的物种。因此，我们的数据似乎表明，在厄瓜多尔，之前被鉴定为塞拉诺白蛉的群体实际上与之前被鉴定为粗壮白蛉的异域群体是同一物种。将厄瓜多尔的塞拉诺白蛉视为小型的粗壮白蛉，后者的地理分布结果与生态学和流行病学更为一致。
