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Genus Passaloecus

Crabronid - Passaloecus little wasp with ivory markings - Passaloecus cuspidatus White-jawed Wasp - Passaloecus White-jawed Wasp - Passaloecus Wasp - Passaloecus Wasp - Passaloecus Little black wasp - Passaloecus Microhoverfly - Passaloecus
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Hymenoptera (Ants, Bees, Wasps and Sawflies)
No Taxon (Aculeata - Ants, Bees and Stinging Wasps)
No Taxon (Apoid Wasps (Apoidea)- traditional Sphecidae)
Family Crabronidae
Subfamily Pemphredoninae (Aphid Wasps)
Tribe Pemphredonini
Subtribe Pemphredonina
Genus Passaloecus
13 spp. in our area(1), 35 spp. worldwide/total(2)
Forewing with two recurrent veins and three discoidal cells; stigma small or moderate in size.
Episternal sulcus well developed, extending from subalar fossa to hypersternaulus and beyond; hypersternaulus horizontal; hindtibia without spine series on posterior margin.
females provision nests with aphids
Life Cycle
Adults emerge in the spring, find holes (e.g. left by beetles), gather pine resin for the nest partitions and aphids to feed the brood. That generation stays in the nests until next spring.
considered possible aphid/thrips control agents (Corbet & Backhouse 2009)