HymenopteraVespidae

Pseudomasaris macswaini

This record describes Pseudomasaris macswaini (species). Recorded family: Vespidae. Recorded order: Hymenoptera.

Identification and Appearance

Pseudomasaris macswaini - Pseudomasaris macswaini
Contributed by Nathaniel Green; Additional contributions by v belov

Similar to P. edwardsii , but females have yellow spot above the tegula and antennae all black except small yellow spots on scape; in males, antennae mostly black and not concave below

Classification

Kingdom
Animalia
Phylum
Arthropoda
Class
Insecta
Order
Hymenoptera (Ants, Bees, Wasps and Sawflies)
Superfamily
Vespoidea
Family
Vespidae
Subfamily
Masarinae
Genus
Pseudomasaris

Imported taxonomy record. Source availability varies; see the source references and editorial policy below.

Habitat and Range

Geographic Range

CA-Baja

Seasonal Activity

Mar-May

Diet and Behavior

Diet: Phacelia sp.

Additional species information

Species notes from the sources

Etymology: Pseudomasaris macswaini Bohart 1963

About Flies: the wider group

Order-level background for Hymenoptera, the group containing Pseudomasaris macswaini. Species-specific details appear above.

Group overview

Hymenoptera includes over 150,000 described species of ants, bees, wasps, and sawflies. Earth harbors approximately 20 quadrillion (20×10^15) ants, with a combined biomass of ~12 megatons of dry carbon - exceeding the combined biomass of all wild birds and mammals (PNAS, 2022).

Ecological role of the group

About 35% of the world's food crops depend on animal pollinators. The chocolate industry, valued at over $100 billion, depends on pollinating flies and midges. Ants are the dominant soil engineers in most terrestrial ecosystems, turning more soil than earthworms in many habitats.

Economic and practical significance of the group

Pollinators contribute $235-577 billion worth of annual global food production (FAO). In the U.S., bee pollination alone benefits crops valued at $18 billion annually, and honey bees are responsible for $5.4 billion in agricultural productivity. Between April 2023-2024, 55.1% of managed honey bee colonies were lost. The U.S. bee population dropped from 5 million to 2.5 million.

Recorded sources for this group: FAO, USDA, EPA, PNAS (2022), US Fish & Wildlife Service. Imported estimates may describe particular regions or reporting periods.

Explore Hymenoptera families and species →

Photos of Pseudomasaris macswaini (3)

Pseudomasaris macswaini - photo 1
Contributed by Nathaniel Green; Additional contributions by v belov
Pseudomasaris macswaini - photo 2
Contributed by Nathaniel Green; Additional contributions by v belov
Pseudomasaris macswaini - photo 3
Contributed by Nathaniel Green; Additional contributions by v belov

Photo credits: Contributed by Nathaniel Green; Additional contributions by v belov

Frequently Asked Questions About Pseudomasaris macswaini

What is Pseudomasaris macswaini?

Pseudomasaris macswaini is a species in the family Vespidae, within the order Hymenoptera.

How do you identify Pseudomasaris macswaini?

Similar to P. edwardsii , but females have yellow spot above the tegula and antennae all black except small yellow spots on scape; in males, antennae mostly black and not concave below

Where is Pseudomasaris macswaini found?

Range: CA-Baja

What does Pseudomasaris macswaini eat?

The diet of the Pseudomasaris macswaini includes Phacelia sp..

When is Pseudomasaris macswaini active?

Pseudomasaris macswaini: seasonal activity - Mar-May.

How we use and review source data. Source count does not imply independent verification.

Photo credits: Contributed by Nathaniel Green; Additional contributions by v belov. Contributors retain copyright over their individual contributions.