by Sandy Garland

On 18 August, Véronique, Jasmine, and I did a survey of the gardens at Sunnyside library (see Finding pollinators at Sunnyside library) and the ones next to the Horticulture Building at Lansdowne Park. Please also see the survey we did at Lansdowne on 29 September.

The latter include beds of wildflowers, vegetables, heritage species, and shrubs in various theme plantings, so a great variety, but only a small number of each plant. Does that lead to a wide diversity of pollinators? Would pollinators even find these beds, tucked away in a corner of a mostly paved commercial complex?

Some of the raised beds next to the Horticulture Building at Lansdowne contain native species of perennials and shrubs.

 

Other beds are filled with vegetables, heritage and other significant varieties, including a Peter Rabbit bed with carrots, cabbages, and chamomile.

Below is a sample of the insects we found. All have been submitted to iNaturalist and its experts have identified some to species.

Very thin wasp (possibly Gasteruption sp.) nectaring on fennel.

Red-belted Bumble Bee (Bombus rufocinctus) on goldenrod.

Eastern Hornet Fly (Spilomyia longicornis) on goldenrod.

A tiny plant bug (Orthops scutellatus) on a fennel floret. When I looked at this photo on my computer, I noticed there are at least 2 other even smaller insects on the same flower cluster.

Humped Beewolf (Philanthus gibbosus) on goldenrod.

A house fly (Musca domestica), an accidental pollinator?

Four-banded Stink Bug Hunter Wasp (Bicyrtes quadrifasciatus), definitely the pollinator with the longest name. On Flat-topped Aster (Doellingeria umbellata).

A very tiny black bee caught in flight, possibly a masked bee (Hylaeus sp.).

Brown-belted Bumble Bee (Bombus griseocollis) nectaring on Verbena bonariensis.

Common Eastern Bumble Bee (Bombus impatiens) on chives.

Cabbage White (Pieris rapae) looking to lay eggs on one of the many plants in the cabbage family found here.

This Common Aerial Yellowjacket (Dolichovespula arenaria) has caught a fly and is eating its prey while dangling by one leg from a goldenrod flower.

A very tiny plant beetle perched on the tip of a sunflower petal.

Bicolored Striped Sweat Bee (Agapostemon virescens), one of the few pollinators I recognize on sight because of its brilliant colours. This one is on a marigold.

One of those tiny (3-4 mm) bees that is so hard to identify (Lasioglossum sp.).

Common Eastern Bumble Bee (Bombus impatiens) on goldenrod.

Medium-sized bee (Melissodes sp.) completely covered in pollen.

 

In addition to the pollinators we photographed, we saw others that were too quick to capture and various numbers of these species. This is just a representative example. We are tabulating all of our data and hope they will reveal something about the various “habitats” we’ve surveyed and the best flowers for pollinators.

Report form

Aug. 18, 1:50-2 :32 pm
Temperature : 22°C
Wind speed: 2.2 m/s (7.9 k/h)
Sky: >90% cloud cover
*Indicates photo submitted to iNaturalist (others were not photographed or photos were not useful for ID)

*Red-belted BB Bombus rufocinctus 1 Goldenrod Solidago sp.
Small striped bee w/ yellow legs 10 Goldenrod Solidago sp.
*Humped Beewolf Philanthus gibbosus 1 Goldenrod Solidago sp.
*Small Black bee Lasioglossum sp.(?) 3 Goldenrod Solidago sp.
Wasp w/ dot on thorax   3 Goldenrod Solidago sp.
Cabbage White Pieris rapae 1 Black-eyed Susan Rudbeckia hirta
Ligated Furrow Bee Halictus ligatus 2 Sunflower Helianthus annuus
*Long-horned bee Melissodes sp. 3 Black-eyed Susan Rudbeckia hirta
Bumble Bee Bombus sp. 1 Black-eyed Susan Rudbeckia hirta
Bumble Bee Bombus sp. 1 Borage Borago officinalis
*Cabbage White Pieris rapae 1 Borage Borago officinalis
Medium striped bee   2 Borage Borago officinalis
Cabbage White Pieris rapae 1 Purpletop Vervain Verbena bonariensis
Common Eastern BB Bombus impatiens 1 Purpletop Vervain Verbena bonariensis
*Masked bee(?) Hylaeus sp.(?) 2 Fennel Foeniculum vulgare
Ligated Furrow Bee Halictus ligatus 10+ Sunflower Helianthus annuus
Sweat Bee Agopostemon sp. 2 Sunflower Helianthus annuus
Common Eastern BB Bombus impatiens 2 White Rose Rosa sp.
Common Eastern BB Bombus impatiens 1 Borage Borago officinalis
Red-belted BB Bombus rufocinctus 1 Small yellow flower
Western Honey Bee Apis mellifera 1 Basil  
Bumble Bee Bombus sp. 1 Basil  
Common Eastern BB Bombus impatiens 1 Joe-Pye-Weed Eutrochium purpureum
Red-belted BB Bombus rufocinctus 1 Flat-topped Aster Doellingeria umbellata
Sweat Bee Agapostemon sp. 10+ Basil  
*Bicolored Striped Sweat Bee Agapostemon virescens 1 Marigold Tagetes 
*Four-banded Stink Bug Hunter Wasp Bicyrtes quadrifasciatus 1 Flat-topped Aster Doellingeria umbellata
*Common Eastern BB Bombus impatiens 5+ Goldenrod Solidago sp.

 

Missing from the data form

  • Gasteruption sp. (?) on fennel
  • Eastern Hornet Fly (Spilomyia longicornis) on goldenrod
  • Plant bug on fennel
  • House Fly (Musca domestica) on goldenrod
  • Brown-belted BB (Bombus grisecollis) on Verbena bonariensis (could be the one reported as common eastern BB on form)
  • Common Aerial Yellowjacket (Dolichovespula arenaria) on goldenrod

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