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Books about Pompilus:
Uova stati larvali e giovanili di Centrolophus pompilus C.V. by SANZO Luigi - (Jan 1, 1931)
A revision of Pompilus Fabricius (Hymenoptera: Pompilidae), with further nomenclatural and biological considerations... by Michael Charles Day (1981)
Wiki information Pompilus:
Pompilus is a genus of spider wasps in the family Pompilidae the members of which prey on spiders. There are seven species recognised in Pompilus sensu stricto. It is the type genus of the family Pompilidae and the sub-family Pompilinae.
Pompilus cinereus, the Leaden Spider Wasp is the most widespread species of the Pompilus spider wasps and throughout a large proportion of its wide distribution is the only species of Pompilus. It is the type species of the genus Pompilus and...