Here’s the gang for today’s LepTrek to Lake Artemesia in College Park, PG Co. Perfect weather — sunny and warm but not too hot And a lot of good nectar sources. From left: Missy, Eric, Beth, Jane, Lynnete, Dave, and Scott. I’m holding the camera.
Most of the action was around the planted hedges of glossy abelia on the left side of the lake, which held large numbers of sachem, Eastern tiger swallowtails (including some dark forms), various sulphurs including sleepy orange, and the occasional monarch. The abelia also yielded most of the day’s count of crossline skippers, as well as a number of Peck’s. We picked up zabulon skipper several times on the eastern side of the lake complex.
Dipped, unfortunately, on the broad-winged skippers, even though a good bit of pickerel weed was in flower. One of the most interesting sights of the day was an intermediate form of female Eastern tiger swallowtail — halfway between light and dark forms.
The list below is our take for the day (although we were frequently split up so not everyone saw the same species). Abbreviations follow the NABA convention of s=superabundant, a=abundant, c=common.
-==| Field Trip |==-
Number of Species: 25
Number of Individuals: 398
Lake Artemesia, College Park
MD , USA 20740
Notes: Warm (mid-80’s) and sunny, in the field 10 am to 1:30 pm. Circle route around the full lake camplex. Abundant nectar sources included swamp milkweed, Mikania, porcelain berry, pickerel weed, and various composites and peas.
-==| List of Sightings for this Field Trip |==-
Common Name Scientific Name Life Stage Number Seen Notes
Black Swallowtail Papilio polyxenes Adult 1
Eastern Tiger Swallowtail Papilio glaucus Adult A
Spicebush Swallowtail Papilio troilus Adult 3
Cabbage White Pieris rapae Adult 3
Clouded Sulphur Colias philodice Adult 5
Orange Sulphur Colias eurytheme Adult 13
Cloudless Sulphur Phoebis sennae Adult 1
Sleepy Orange Eurema nicippe Adult 2
Eastern Tailed-Blue Everes comyntas Adult C
‘Summer’ Spring Azure Celastrina ladon neglecta Adult 1
Pearl Crescent Phyciodes tharos Adult A
Eastern Comma Polygonia comma Adult 1
Painted Lady Vanessa cardui Adult 1
Red Admiral Vanessa atalanta Adult 1
Common Buckeye Junonia coenia Adult A
Red-spotted Purple Limenitis arthemis astyanax Adult 4
Viceroy Limenitis archippus Adult 4
Monarch Danaus plexippus Adult 17
Silver-spotted Skipper Epargyreus clarus Adult A
Least Skipper Ancyloxypha numitor Adult A
Peck’s Skipper Polites peckius Adult C
Tawny-edged Skipper Polites themistocles Adult 1
Crossline Skipper Polites origenes Adult 4
Little Glassywing Pompeius verna Adult 1
Zabulon Skipper Poanes zabulon Adult 5