Long-horned Bees (Genus Melissodes) are active from July through September, with at least 9 species known from Vermont. A few are true specialists, while others have a general preference for composites, and at least one species is a broad generalist. Field identification of most species is hard or impossible, thought there are a few distinctive ones. Host to Longhorn-Cuckoo Bees (Triepeolus).
Examples of Vermont's Long-horned Bees
Genus level ID
Long-horned Bees are medium-large bees that can be abundant in some context. Females have very long scopal hairs on their hind tibia and males have absurdly long antenna (hence the common name).
Unless otherwise specified, photos are courtesy of Margarita Miklasevskaja at PCYU with funding from NSERC-CANPOLIN.