I initially thought that July 23 was a bit early for them, but then again, who knows...They have been recorded in Ontario and in Michigan as early as late May, and in Tennessee I am sure that I saw them "on the move" in July...Also, this has been a very warm summer...

From: Vermont Butterfly Survey on behalf of Bryan Pfeiffer
Sent: Mon 8/22/2005 6:46 AM
To: [log in to unmask]
Subject: Re: [VTLEPS] VTLEPS: Spicebush Swallowtail

Yeah, it might be a bit early for Cloudless Sulphur. Not that I have nearly as much experience as Alex does with them, but mine have been in September along the coast, including one on Monhegan Island, Maine, (discovered by Chip Darmstadt) in September a few years ago.


At 8/21/2005, you wrote:
"Migrating" Cloudless Sulphur will fly fairly high above the ground, probably 8 to 15 ft. +/-...Straight ahead, northbound, rapidly - will not appear to be flying fast but will surprise you when you attempt to chase it...Wingbeats mixed in with some sailing...Will be across a large field in surprisingly short time. Large size, long wings, pale yellow to greenish yellow appearance it flight...
They are frequently seen in extreme southeastern Massachusetts (Cape Cod and along the coast)...Have been seen fairly regularly in coastal Mass. the past few years...I have myself seen at least 2 specimens in Mass. and one in Rhode Island in recent years, but in all cases in September.
Anyway, we should all keep our eyes open for this species...

From: Vermont Butterfly Survey on behalf of David Hoag
Sent: Sun 8/21/2005 5:53 PM
To: [log in to unmask]
Subject: Re: [VTLEPS] VTLEPS: Spicebush Swallowtail

> The more the merrier. Kevin
>> Unfortunately, no photo - it flew off before
   I could net it.   [snip]   SULPHUR sp. (100+ 

22-JULY (not August) Grand Isle
LARGE.   All very pale yellow.   Fast wingbeats.
Larger than the largest C. eurytheme / Orange Sulphur.
Straight steady northbound flight on a south wind.
I saw it approach a hedgerow and ran around the end
of the hedge to catch up with it - just out of reach -
watched it continue north, up and over a cedar swamp.
All the other sulphurs were flying erratically as expected.

Cloudless Sulphur??  Bennington County should have one?!
Dave Hoag

The Vermont Butterfly Survey
A Project of the Vermont Institute of Natural Science

27023 Church Hill Road
Woodstock, VT 05091
(802) 454-4640

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