Here are some notable observations - rare species, new arrivals, species with interesting life histories - gleaned from our iNaturalist project and other sources.
The Martha’s Vineyard Atlas of Life relies heavily on the community science platform iNaturalist to build a picture of the Vineyard’s biodiversity. Vineyard observations uploaded into iNat are automatically added to our MVAL project in iNaturalist, which can be viewed here. Thanks to the efforts of hundreds of amateur naturalists, the project sees a steady stream of new reports coming in (almost 1,700, or nearly 60 a day, during the month of June 2022!). The MVAL tries to review all of those observations, adding identifications where we can and tagging experts we know to help with species we don’t recognize.
Every one of those observations helps clarify what species occur here and how they are distributed. This section of our website selects observations that strike us as especially interesting: rare species, Vineyard specialties, species new to our iNaturalist project, known or potentially invasive species, species with unusual life histories or striking appearance. Generally we’ll include a photo or two and some brief text explaining why the observation matters. From time to time, we may include observations from other sources. Check back often to see what unusual things have been reported!
Cyrtopogon falto, a Barrens Robber Fly
Associated with barrens habitats and found mostly north and west of the Vineyard, the robber fly Cyrtopogon falto is the 18th member of the family Asilidae that we've been able to document on the Vineyard.
Azalea Mining Bee Added to the Vineyard Bee Checklist
Andrena cornelli, found in West Tisbury by Sharon Britton on May 22, 2023, brings the Vineyard bee checklist to 193 species.
Third Vineyard Record for Townsend's Solitaire
The island's third-ever Townsend's Solitaire (Myadestes townsendi) was found in Correllus State Forest on February 21, 2023.
"The Swiss Army Knife of Mushrooms"
The birch polypore fungus, rarely reported on Martha's Vineyard, has a multitude of roles in traditional medicine. Botanist Margaret Curtin recently found the species in Edgartown and researched the interesting biology and social history of this fungus.
iNaturalist helps two island observers identify a freshwater mussel in Seth's Pond, West Tisbury. Little is known about these shellfish on Martha's Vineyard.
One of many parasitic bee species that lay their eggs in the nests of other bees, Coelioxys octodentatus was recently documented on the Vineyard for the first time.
Hairy-banded Miner Bee, Andrena hirticincta
Closely associated with goldenrod, this distinctive bee appears to be one of the most common and widespread members of its genus on Martha's Vineyard.
Great Blue Skimmer
Possibly the first fully documented record of Libellula vibrans comes from a new iNaturalist user.
A Chilmark observation of the rarely reported wasp genus Gasteruption.
Rarely observed and highly specialized, this bee was documented at a site on the Vineyard's south shore.
Pyrgota undata: a parasitic nocturnal fly turns up at a moth sheet during our June 2022 bioblitz at Long Point Wildlife Refuge.
White Colic-root (Aletris farinosa):
Favoring sandy soils and open habitat, this member of the lily family is a characteristic plant of the Vineyard sandplain and an important plant for supporting pollinators in the late spring.
Viola pedata - Bird's foot violet
This beautiful spring wildflower is a characteristic species of the lean, droughty soils of the Vineyard sandplain.
Deer Bot Fly
A strange-looking fly with an even stranger life history.
Perhaps because of their elongated shape, members of the fly family Therevidae have acquired the common name “stiletto flies.”
Deliberately or by accident, humans have transported many thousands of species from their native ranges to new regions or continents.
New Wasp Species for Vineyard Atlas of Life
An interesting species was added to the BWorks Martha’s Vineyard Atlas of Life project on iNaturalist last weekend: Vespula vidua, sometimes known as the widow yellowjacket.
"Mystery Fly" on the Vineyard's South Shore
A rarely reported, carrion-loving fly turns up on the Vineyard's southern shoreline.