a subfamily of solitary wasps of the family Vespidae; it was earlier considered the separate family Masaridae.

Masarinae have been little studied. They are predominantly small forms, with a body length rarely greater than 1 cm. The abdomen is striped. The wasps feed on the nectar and pollen of flowering plants; in contrast to bees, they carry the pollen in their crop. The females build solitary nests with a single or, sometimes, several isolated cells. The nests, which are in the ground or on branches, usually are made from clay or a clay and sand mixture cemented with secretions from the salivary glands. The female deposits an egg in a cell of the nest, filling it with a mixture of pollen and nectar and then sealing it. The larva develops in the course of several months and then spins a dense cocoon inside the cell. The life cycle may last two years. There are about 100 species, distributed mainly in desert zones.

In the USSR, the wasps occur in the southern European portion, in Transcaucasia, and Middle Asia.


Zhizn zhivotnykh, vol. 3. Moscow, 1969.
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Divided into two tribes: Gayellini (two genera), and Masarini (11 genera), the subfamily Masarinae (sensu Carpenter 1993) is relatively small, with no more than 300 described species (Gess 1996).
Masarinae, within the Vespoidea, are a peculiar subfamily, because they wasps feeds the immatures with pollen and nectar, as bees do; while the remaining wasps nourish their brood with animal protein.
Trimeria howardi, in the Masarinae subfamily, is a species with narrow polylecty, because it collected pollen in only two families of plants and four species.
In another Masarinae, the length of the tongue varied from 1.48 mm in Paragia odyneuroides to 6.23 mm in Ceramius metanotalis (Gess 1996).
Similar fact occurs in the other Masarinae. In the group, the overwintering stage is the last-instar larva, which after it has finished feeding spin a cocoon and then enters a resting prepupal phase (Gess 1996).
Generic classification of the Australian pollen wasps (Hymenoptera: Vespidae; Masarinae).
Ecology and Natural History of the Masarinae. Harvard University, Cambridge.
Rower visiting by masarid wasps in Southern Africa (Hymenoptera: Vespidae: Masarinae).
Der bisher unbekannte Pollensammelappafat der Honigwespe Celonites abbreviatus (Vespidae, Masarinae).
Carpenter (1982) divides Vespidae into the subfamilies Euparagiinae, Masarinae, Eumeninae (solitary or presocial wasps), Stcnogastrinae, Polistinae and Vespinae.