| Occurrence | "Most of MA; few records in southeastern MA, none from Cape and Islands" |
| Abundance | Uncommon to rare; maximum 7 |
| Flight Period | May 4 - October 9 (mainly May to August) |
| Notes | "Local, closely associated with alders; larvae usually easier to find than adults. Only carnivorous N. American species. 3-week life cycle." |
| Overwintering | Probably older Larva |
| More info |
Massachusetts Butterfly Atlas Website |
| More info |
Butterflies of Massachusetts Website |
| After viewing the photos here, be sure to look at
Marj Rines' outstanding
Harvester photojournal. It contains some great photos and text showing
the Harvester lifecycle. |

Photo © Dave Small - 5/16/1999 Royalston Female Harvester laying eggs (ovipositing) in a colony of Wolly Aphids. When the caterpillars hatch, they will eat the aphids. | Top of Page
Photo by Mike Walker - 8/1/2003 Wachusett Reservoir | Top of Page
Photo by Tom Whelan - 8/23/2003 Medford | Top of Page
Photo by Tom Murray - 7/18/2004 Oxbow NWR, Harvard | Top of Page
Photo by Tom Murray - 7/18/2004 Oxbow NWR, Harvard | Top of Page
Photo by Barbara Spencer
| Top of Page
Photo by Tom Murray - 9/14/2003 Wayland Community Gardens, Wayland | Top of Page
Photo by Frank Model - 8/17/2005 Medford Chrysalis | Top of Page
Photo by Frank Model - 8/23/2006 Medford | Top of Page
Photo by Frank Model - 8/23/2006 Medford | Top of Page
Photo by Frank Model - 8/17/2005 Medford Nectaring' on wooly aphid 'honeydew'. Note angry ant. | Top of Page
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