Female <i>Rhynchophorus palmarum</i> with coloration resembling <i>R</i>. <i>ferrugineus</i>, captured in a sugarcane plantation at CIAT headquarters, Palmira, Colombia, on February 25, 2014.

<p>Female <i>Rhynchophorus palmarum</i> with coloration resembling <i>R</i>. <i>ferrugineus</i>, captured in a sugarcane plantation at CIAT headquarters, Palmira, Colombia, on February 25, 2014.</p

Variation in the subgular suture (SM, top row) and indentation of mandibles (bottom row, lateral view of left mandible) of <i>Rhynchophorus palmarum</i> captured in pheromone-baited traps in a sugarcane plantation at CIAT headquarters, Palmira, Colombia.

<p>Variation in the subgular suture (SM, top row) and indentation of mandibles (bottom row, lateral view of left mandible) of <i>Rhynchophorus palmarum</i> captured in pheromone-baited traps in a sugarcane plantation at CIAT headquarters, Palmira, Colombia.</p

Parental analysis using <i>Rhynchophorus ferrugineus</i> specific microsatellites [21] between atypically colored <i>R</i>. <i>palmarum</i> (collected at CIAT, Palmira, Colombia) and <i>R</i>. <i>ferrugineus</i> (collected at Oeiras, Portugal).

<p>Parental analysis using <i>Rhynchophorus ferrugineus</i> specific microsatellites [<a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0143210#pone.0143210.ref021" target="_blank">21</a>] between atypically colored <i>R</i>. <i>palmarum</i> (collected at CIAT, Palmira, Colombia) and <i>R</i>. <i>ferrugineus</i> (collected at Oeiras, Portugal).</p

Phylogenetic tree of the palm weevils (genus <i>Rhynchophorus</i>).

<p>All published and our own sequences were included in the analysis. The African <i>Rhynchophorus phoenicis</i> does not appear in the cladogram as the sequences could not be aligned with those of other congeneric species and the similarity did not surpass 84% (reasons unknown).</p

Aedeagus of <i>Rhynchophorus palmarum</i> (dorsal (left), ventral (centre), and lateral view (right) captured in pheromone-baited traps in a sugarcane plantation at CIAT headquarters, Palmira, Colombia.

<p>Aedeagus of <i>Rhynchophorus palmarum</i> (dorsal (left), ventral (centre), and lateral view (right) captured in pheromone-baited traps in a sugarcane plantation at CIAT headquarters, Palmira, Colombia.</p

Characteristics of seven microsatellite loci isolated in <i>Rhynchophorus ferrugineus</i> (adapted from Capdevielle-Dulac [21]).

<p>Characteristics of seven microsatellite loci isolated in <i>Rhynchophorus ferrugineus</i> (adapted from Capdevielle-Dulac [<a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0143210#pone.0143210.ref021" target="_blank">21</a>]).</p