Category Archives: 2014

Seeing Bee Blocks on Open Space?

Yep, you’re not imagining things. During 2014, City of Boulder Open Space and Mountain Parks partnered up with us to place bee blocks at various trailheads. In the 40 nesting blocks that were placed at 30 trailheads, data on 763 … Continue reading

Posted in 2014, Bee Blocks | Leave a comment

Insects of the Week: Hylaeus (bees) and Gasteruption (wasps)

This week we have two featured insects for you: a wasp and a bee that looks an awful lot like a wasp. Scientific name: Hylaeus Common name: Masked or yellow-faced bees Family: Colletidae Nest type: Silk (dried mother bee saliva) … Continue reading

Posted in 2014, Insect of the Week, Uncategorized | Leave a comment

Insects of the Week: genus Isodontia

Scientific name: Isodontia Common name: Grass-carrying wasps Family: Sphecidae Nest type: dried grass blades Size: 18-20 mm Nest tunnels used: 1/2” to 5/16” tunnels Looks like: Large rusty orange or shiny black wasps If you’ve ever opened a window and … Continue reading

Posted in 2014, Insect of the Week, Nest Plugs, Uncategorized | Leave a comment

Bees of the Week: genus Anthidium

Scientific name: Anthidium Common name: Wool carder bees Family: Megachilidae Nest type: hairs from plants, but may include debris Size: 8-15 mm (males larger than females) Nest tunnels used: 1/2” down to 5/16” Looks like: Black and yellow striped bees It’s … Continue reading

Posted in 2014, Insect of the Week, Nest Plugs, Uncategorized | Leave a comment

Insects of week: A Tale of Two Parasites

This week we profile two parasites, one that “attacks” after nests are completed and one that “attacks” as the nests are being made or even before nest construction begins. Scientific name: Leucospis affinis Common name: Giant Chalcidoid wasps Family: Leucospidae Nest … Continue reading

Posted in 2014, Insect of the Week, Uncategorized | Leave a comment

Bees of the Week: Invasive Species!

We’ve got a doozy of a post for you today. In it we list some introduced bee species (the Starlings of the bee world) that we’ve seen around this season or in the past. Invasive species can be problematic. As the … Continue reading

Posted in 2014, Insect of the Week, Uncategorized | 1 Comment

Bees of the Week: genus Coelioxys

Scientific name: Coelioxys Common name: Leaf-cutting cuckoo bee Family: Megachilidae Nest type: parasitize active nests of Megachile Size: 8-12 mm Nest tunnels used: 3/16″ to 7/16″ Looks like: black with white hair stripes; legs maybe black or red; females always have a long, … Continue reading

Posted in 2014, Bee Blocks, Insect of the Week, Uncategorized | Leave a comment