- they are specialized in their choice of host
- they are smaller than host
- only the female searches for host
- different parasitoid species can attack different life stages of host
- eggs or larvae are usually laid in, on, or near host
- immatures remain on or in host; adults are free-living, mobile, and may be predaceous
- immatures almost always kill host
Revolting seething-skinned caterpillar video!