Your second photo is not of a bee; it is a syrphid fly.    From Wordnik.com.  [Flattened fauna of sidewalks - Part 3] Reference

A syrphid fly ( '' Eristalinus taeniops '') pollinating a Common Hawkweed.    From Wordnik.com.  [Pollinator] Reference

Regarding the insect that looked like a bee above: it is actually a syrphid fly that mimics the look of a bee.    From Wordnik.com.  [The Sheffies « Fairegarden] Reference

The birds and lady-beetles devour them bodily, the larvæ of the lace-wings and syrphid-flies extract their blood while the wasps live as internal parasites.    From Wordnik.com.  [An Elementary Study of Insects] Reference

Among the best-known of syrphid flies are the drone-flies.    From Wordnik.com.  [The Life-Story of Insects] Reference

Bees have nicely rounded abdomens; syrphid flies 'bellies are so thin they look squashed.    From Wordnik.com.  [BC Bloggers] Reference

Labels: bee identification, bee mimic, fly, Reifel island Migratory Bird Sanctuary, syrphid fly.    From Wordnik.com.  [BC Bloggers] Reference

You don't want to have snarky entomologists point out that your website about bees is prominently featuring …. a syrphid FLY.    From Wordnik.com.  [WordPress.com News] Reference

Sphecidae and Vespidae), bombyliid flies and syrphid flies are important pollinators of some plants.    From Wordnik.com.  [Pollinator] Reference

Http://fromlynnsgarden.wordpress.com I used to teach entomology, so am very familiar with syrphid flies.    From Wordnik.com.  [The Sheffies « Fairegarden] Reference