Sources of data on signa (presence or absence), female mating pattern (polyandry or monandry) and phylogeny, used in the comparative phylogenetic analysis summarized in Figure 3.

Information on signa was obtained for all taxa listed in the “Species” column, whereas data on mating pattern was obtained only for taxa marked with an asterisk. The characters used for phylogenetic reconstruction in the source phylogenies are as following: [57]: morphological and ecological; [51], [58], [59]: morphological; [60]: molecular (28S ribosomal RNA and mitochondrial ND1); [61]: molecular (mitochondrial COI-COII region and nuclear gene wingless); [62]: molecular (nuclear gene wingless). Species names were actualized according to information in www.nic.funet.fi/pub/sci/bio/life/intro.html (consulted 5/26/2011); a table with the names used in the original references can be obtained from the corresponding author.