USGS Bee Inventory and Monitoring Lab   cc-publicdomain

Hylaeus leptocephalus (Slender Faced Masked Bee) is a species of Hymenoptera in the family plasterer bees. They visit flowers of Clustered Mountain-Mint, Chinese chives, swamp milkweed, and white doll's daisy.

EOL has data for 10 attributes, including:

Known occurrences, collected specimens and observations of Slender-faced Masked Bee. View this species on GBIF