This blog provides an informal forum for terrestrial invertebrate watchers to post recent sightings of interesting observations in the southern Vancouver Island region. Please send your sightings by email to Jeremy Tatum ( Be sure to include your name, phone number, the species name (common or scientific) of the invertebrate you saw, location, date, and number of individuals. If you have a photograph you are willing to share, please send it along. Click on the title above for an index of past sightings.The index is updated most days.

2024 May 2 morning

2024 May 02 morning

   Note to photographers.  If you work from a PC, and if it is convenient for you, please send photographs to Invert Alert as an attachment and as a .jpg or .jpeg extension.   If you send it in some other form, I can sometimes figure out how to handle it, but I am not a computer expert, and it may take me quite a long while to do so.  I think there are just two contributors working from a Mac at the moment.  Please continue to do what you at present do.


Yesterday, May 1, Marie O’Shaughnessy saw four Western Spring Azures, a Painted Lady, a Mourning Cloak, a Cabbage White and a Cedar Hairstreak  at Outerbridge Park.  Aziza Cooper saw a Western Spring Azure, a Mourning Cloak, and a Cabbage White at Tod Creek Flats.  Val George saw a Painted Lady near the Jeffrey Pine on Mount Tolmie.

Painted Ladies often seem to fly near the Mount Tolmie Jeffrey Pine.  I am not sure if I have always spelled Jeffrey correctly in earlier Invert Alerts.  The correct spelling is Jeffrey.

This is the first Cedar Hairstreak reported this year to Invertebrate Alert.  The Cedar Hairstreak has had what the taxonomists call an “extensive synonymy”  – i.e. it has been given many scientific names.  In previous years we have called it Mitoura rosneri.  We are now attempting to follow the 2023 ATC, in which it is listed as Callophrys gryneus.  The ATC treats Mitoura as a subgenus within Callophrys, and rosneri as a subspecies of gryneus.


Here are some photographs from yesterday’s sightings.

Western Spring Azure Celastrina echo (Lep.: Lycaenidae)  Marie O’Shaughnessy

Western Spring Azure Celastrina echo (Lep.: Lycaenidae)  Marie O’Shaughnessy

Western Spring Azure Celastrina echo (Lep.: Lycaenidae)  Aziza Cooper

Painted Lady  Vanessa cardui  (Lep.:  Nymphalidae)  Marie O’Shaughnessy


Painted Lady  Vanessa cardui  (Lep.:  Nymphalidae)   Val George

Cedar Hairstreak  Callophrys gryneus  (Lep.: Lycaenidae)  Marie O’Shaughnessy