Antennal size and body size.

<p>Relationship between antennal size (log antennal area) and body size (log body length) for the 126 Chalcidoid species. The raw data are plotted with the phylogenetic generalized least squares regression line generated from the most recent chalcidoid phylogeny by Heraty et al. [<a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0078297#B20" target="_blank">20</a>]. Species that parasitize Hemipteran hosts are indicated by filled circles with those parasitizing Sternorrhyncha in green and those that parasitize only other Hemipteran suborders in red. Note that species that parasitize Hemiptera are generally smaller than species that parasitize other orders, and that these species (particularly those that parasitize other Hemiptera) have relatively larger antennae for their body size (the majority of these species lie above the PGLS regression line).