FIGURE 1 in Fifteen new species of Chilicola (Hymenoptera: Apoidea; Colletidae)

FIGURE 1. Time series for descriptions of valid species of Xeromelissinae. The increase between 1970 and 1980 was largely the result of Toro and Moldenke (1979), the penultimate increase (2000–2006) includes the species described herein plus those by Michener (2002), González and Michener (2002), Packer (2004, 2005), Toro and Packer (2002). The increase from 2006 to 2010 includes the total number of undescribed species known to us, though each collecting trip to Chile or Argentina results in more previously not collected species being discovered. Species known only from fossils are not included.