They tend to infect these wasps either through phoretic transport. Here, the parasite's first instar larvae are able to attach to wasps’ abdomens at flowering patches or by infecting masses by releasing close to combs from an infected wasp. Sometimes in brood with high levels of parasitized larval hosts, an adaptation of the parasite to enter the eggs might exist.
They often spread to these wasps through phoretic transport. The parasite's initial larvae can attach to wasps' abdomens at flowering patches or by infecting large groups by releasing close to combs from an infected wasp. Occasionally, in broods with high levels of parasitized larval hosts, the parasite may have adapted to enter eggs.