Snakes and spiders in Matanuska-Susitna Borough, Alaska
Matanuska-Susitna Borough has 0 snake and 10 spider species on record, from 0 licensed snake and 860 spider records. No venomous snake or spider reaches the county list.
What spiders are in Matanuska-Susitna Borough?
In all, 10 spider species are on the Matanuska-Susitna Borough list. The most recorded are Gnathonarium taczanowskii (40), Emblyna annulipes (35) and Centromerus sylvaticus (21). Matanuska-Susitna Borough holds more than half of all Alaska records of Centromerus sylvaticus and Mecynargus paetulus.
Same family (Linyphiidae): Frontinella pyramitela
Related species: Emblyna sublata
Related species: Clubiona abboti
Same family (Linyphiidae): Frontinella pyramitela
| # | Species | Records | Share of Alaska records |
|---|---|---|---|
| 1 | Gnathonarium taczanowskii | 40 | 36% |
| 2 | Emblyna annulipes | 35 | 27% |
| 3 | Centromerus sylvaticus | 21 | 52% |
| 4 | Clubiona kulczynskii | 16 | 28% |
| 5 | Marbled orbweaver Araneus marmoreus | 14 | 19% |
| 6 | Mecynargus paetulus | 13 | 54% |
| 7 | Goldenrod crab spider Misumena vatia | 11 | 11% |
| 8 | Peatland sheetweb weaver Hypselistes florens | 11 | 22% |
| 9 | Pelegrina montana | 10 | 24% |
| 10 | Sixspotted fishing spider Dolomedes triton | 3 | 15% |
When are spiders out in Matanuska-Susitna Borough?
Observation records of spiders in Matanuska-Susitna Borough run mostly May through September, peaking in July with 34% of them; across Alaska the peak is August.
What stands out in Matanuska-Susitna Borough
Species for which Matanuska-Susitna Borough holds a large share of all Alaska records: Mecynargus paetulus, 54% (13 of 24); Centromerus sylvaticus, 52% (21 of 40); Gnathonarium taczanowskii, 36% (40 of 110); Clubiona kulczynskii, 28% (16 of 57); Emblyna annulipes, 27% (35 of 131); Pelegrina montana, 24% (10 of 42); the peatland sheetweb weaver, 22% (11 of 50); the marbled orbweaver, 19% (14 of 74).
Common in Alaska, not on the Matanuska-Susitna Borough list
Among the spiders most recorded across Alaska, these do not reach the county list: the common west coast woodland spider (1,213 statewide), Ceratinops inflatus (736 statewide), Sisicottus nesides (528 statewide), Tenuiphantes zelatus (508 statewide), the common six-spotted cobweaver (464 statewide) and Symmigma minimum (398 statewide). Few records here can mean the species is rare in the county, or that few people have looked.
Matanuska-Susitna Borough among Alaska counties
Other Alaska counties with their own page: Haines Borough, Juneau City and Borough, Kenai Peninsula Borough, North Slope Borough, Prince of Wales-Outer Ketchikan Census Area, Skagway-Yakutat-Angoon Census Area, Southeast Fairbanks Census Area and Wrangell-Petersburg Census Area.
The whole state: venomous species in Alaska, all spiders.
GBIF records read 2026-09-29. Listed: any license. Counted: CC0/CC BY only. How we count.