Subfamily characters are given in the key. These characters apply whether the taxa are treated as subfamilies or tribes. Eulophids may be swept almost anytime, anywhere. If the collecting is reasonably good in general, there will always be eulophids present. Rearing leaf-miners from any plant will usually produce some eulophids.
Lepidopterous larvae are another good source.
Eulophids are well represented throughout the world. To find references use the Chalcid Literature document or Return to the Chalcidoid page.