Twig-nester
Guides
Heriades carinata
Carinate Sculptured Mason Bee, Carinate Armored-Resin bee
Heriades carinata is a small solitary mason bee in the family Megachilidae. It is a twig-nesting species that uses pre-existing cavities such as hollow stems or beetle borings in dead wood. The female constructs nest cells separated by partitions of plant resin, earning it the common name 'Armored-Resin bee.' It has been recorded as the first gynandromorph in its genus. The species occurs across the United States and southern Canada.
Osmia simillima
Osmia simillima is a solitary mason bee in the family Megachilidae, native to North America. It nests in twigs, buried wood, and has been observed using oak apple galls as nesting sites. As a member of the genus Osmia, it belongs to a group of ecologically important pollinators that use mud to construct and seal nest chambers.
Parancistrocerus perennis perennis
mason wasp
Parancistrocerus perennis perennis is a small solitary mason wasp in the subfamily Eumeninae. Females hunt caterpillars of leafroller moths (Tortricidae) and casebearer moths (Coleophoridae), paralyzing them with their sting to provision nest cells in hollow twigs. The subspecies is distinguished from the southern P. p. anacardivora by lacking reddish markings on the first abdominal segment. It ranges from southern Ontario to Florida and west to the Mississippi River.
Stigmus americanus
aphid wasp
Stigmus americanus is a small aphid wasp in the family Crabronidae (formerly Pemphredonidae). It is native to North America and is known for nesting in twigs of various trees and shrubs. The species provisions its nests with paralyzed aphids as food for its larvae, and is subject to parasitism by cuckoo wasps in the genus Omalus.