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.

January 15

2021 January 15


   Another array of fascinating creatures photographed at night by Ian Cooper at Colquitz River Park and the 9 km marker on the Galloping Goose trail:


Rough Woodlouse Porcellio scaber (Isopoda: Porcellionidae)  Ian Cooper

Devil’s Coach-Horse Beetle Ocypus olens (Col.: Staphylinidae) Ian Cooper

Spider (Ara.: Linyphiidae)  Ian Cooper

Burrow entrance of Trapdoor Spider Antrodiaetus pacificus (Ara.-Myg.:  Antrodiaetidae)

Ian Cooper

Harvestman, Possibly Paroligolophus agrestis (Opi.: Phalangiidae)  Ian Cooper

Slug R  (Pul.:  Arionidae)


January 14

2021 January 14


   Here are some slugs photographed by Ian Cooper on the night of January 9-10 near the 9 km marker along the Galloping Goose Trail.  As yet, we are not certain of all the identifications, but we’ll label them as and when we know what they are.  Help from viewers would be appreciated.


Grey Field Slugs Deroceras reticulatum (Pul.: Agriolimacidae)  Ian Cooper


Slug N    Ian Cooper


Slug O    Ian Cooper


Slug P    Ian Cooper


Slug Q     Ian Cooper




January 12

2021 January 12


   Erratum:  A slug tentatively identified in yesterday’s posting as Prophysaon coeruleum is actually P. foliolatum.  See yesterday’s posting for details.


    Ian Cooper sends a photograph of a tiny spider of the sort that I (writes Jeremy Tatum) used to call a “money spider”.  I sent the photo to Dr Robb Bennett somewhat apologetically, referring to it as “just another linyphiid spider”, and was mildly chided for the word “just” – for Robb says they are very interesting!  But he also says there are literally hundreds of species in British Columbia and they usually can’t be confidently identified from a photograph.  So we’ll settle for Linyphiidae – subfamily either Linyphiinae or Erigoninae.  In any case, we can all enjoy the photograph.


Linyphiid spider       Ian Cooper

January 11

2021 January 11

Here is a series of photographs of slugs and snails photographed by Ian Cooper in recent days (and nights!) either along the Galloping Goose Trail or in Colquitz River Park.   The identifications, by Ian, are tentative, but probably correct – though we’d welcome any alternative suggestions.  The first is the Yellow-bordered Taildropper.  In an earlier version of this posting I had labelled it as a Blue-grey Taildropper from the same genus, but, as Ian suspected and Jeremy Gatten confirmed, from the yellow border to the mantle and the larger size, it is actually the Yellow-bordered.

Yellow-bordered Taildropper Prophysaon foliolatum (Pul.: Anadeniidae)  Ian Cooper

Arion (fasciatus group?)(Pul.: Arionidae)  Ian Cooper

Cryptomastix germana (Pul.: Polygyridae)  Ian Cooper

Vespericola columbianus (Pul.: Polygyridae)  Ian Cooper

Vespericola columbianus (Pul.: Polygyridae)  Ian Cooper

Cryptomastix germana (Pul.: Polygyridae)  Ian Cooper

Robust Lancetooth  Haplotrema vancouverense (Pul.:  Haplotrematidae)  Ian Cooper

Robust Lancetooth Haplotrema vancouverense (Pul.: Haplotrematidae)  Ian Cooper

Arion subfuscus?  (Pul.: Arionidae)  Ian Cooper



January 9

2021 January 9


   Not much doing today, but Jeremy Tatum writes: Here is a pholcid spider from my Saanich apartment.

Depending on where you live in the world, the name “daddy-long-legs” is used for various creatures.  In the UK a “daddy-long-legs” means a crane fly.  Here it usually means a harvestman.  But sometimes the term is also used for a pholcid spider like this one.


Pholcus phalangioides (Ara.: Pholcidae)   Jeremy Tatum