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Snakes and spiders in Hawaii County, Hawaii

Hawaii County, home of Hilo, has 1 snake and 31 spider species on record, from 12 licensed snake and 3,432 spider records. Venomous species here: the western black widow.

1snake species
31spider species
1venomous
Bitten in Hawaii County? Call 911 for a venomous snakebite or any bite with trouble breathing. For advice on any bite or sting, call Poison Help at 1-800-222-1222 (free, 24/7, U.S.-wide). Do not cut the wound, suck out venom or use a tourniquet. General information, not medical advice. Do not handle or try to identify a snake or spider by this page; if unsure, treat it as venomous.

Are there venomous snakes or spiders in Hawaii County?

Yes. The western black widow: 10 licensed records, 100% of all Hawaii records of it.

What spiders are in Hawaii County?

In all, 31 spider species are on the Hawaii County list. The most recorded are Tetragnatha quasimodo (404), Tetragnatha hawaiensis (293) and the banana spider (146). Hawaii County holds more than half of all Hawaii records of Tetragnatha quasimodo, Tetragnatha hawaiensis, Tetragnatha anuenue and Tetragnatha brevignatha.

Tetragnatha quasimodo
Tetragnatha quasimodo404 records
Tetragnatha hawaiensis
Tetragnatha hawaiensis293 records
Banana spider
Banana spiderArgiope appensa146 records
Related species: Tetragnatha laboriosaRelated species: Tetragnatha laboriosa
Tetragnatha anuenue143 records
Related species: Tetragnatha laboriosaRelated species: Tetragnatha laboriosa
Tetragnatha brevignatha120 records
Related species: Tetragnatha laboriosaRelated species: Tetragnatha laboriosa
Tetragnatha perkinsi100 records
Asian spiny-backed spider
Asian spiny-backed spiderThelacantha brevispina72 records
Black cobweb spider
Black cobweb spiderSteatoda capensis50 records
#SpeciesRecordsShare of Hawaii records
1
Tetragnatha quasimodo
40482%
2
Tetragnatha hawaiensis
29395%
3Banana spider
Argiope appensa
14635%
4
Tetragnatha anuenue
143100%
5
Tetragnatha brevignatha
120100%
6
Tetragnatha perkinsi
100100%
7Asian spiny-backed spider
Thelacantha brevispina
7234%
8Black cobweb spider
Steatoda capensis
5086%
9
Tenuiphantes tenuis
48100%
10Gray house spider
Badumna longinqua
46100%
11Miller dwarf weaver
Erigone aletris
3597%
12
Tetragnatha acuta
3156%
13
Meriola arcifera
22100%
14Hawaiian happy face spider
Theridion grallator
2178%
15
Tetragnatha restricta
1148%
16Corner funnel weaver
Hololena curta
10100%
17Western black widow venomous introduced
Latrodectus hesperus
10100%
18Huntsman spider
Heteropoda venatoria
915%
19Banded garden spider
Argiope trifasciata
831%
20Gray wall jumper
Menemerus bivittatus
712%
21Lami beach northern jumping spider
Cosmophasis lami
730%
22Adanson's house jumper
Hasarius adansoni
610%
23
Neoscona theisi
55%
24Western spotted orbweaver
Neoscona oaxacensis
4100%
25
Habronattus pyrrithrix
3100%
26
Ariamnes waikula
2100%
27
Ascyltus pterygodes
225%
28
Hogna crispipes
1100%
29Spiny-backed orbweaver
Gasteracantha cancriformis
13%
30
Habronattus mexicanus
——
31
Theridion acutitarse
——
Source: GBIF records located in Hawaii County (GADM level 2), read 2026-09-29. Listed from records under any license; counts are CC0/CC BY only.

When are spiders out in Hawaii County?

Observation records of spiders in Hawaii County run mostly October through May, peaking in March with 31% of them, the same peak as Hawaii as a whole.

January: 29 observation records (3%)JanFebruary: 187 observation records (21%)Feb21%March: 281 observation records (31%)Mar31%April: 206 observation records (23%)Apr23%May: 31 observation records (3%)MayJune: 20 observation records (2%)JunJuly: 15 observation records (2%)JulAugust: 12 observation records (1%)AugSeptember: 16 observation records (2%)SepOctober: 28 observation records (3%)OctNovember: 42 observation records (5%)NovDecember: 28 observation records (3%)Dec

What stands out in Hawaii County

Species for which Hawaii County holds a large share of all Hawaii records: Meriola arcifera, 100% (22 of 22); Tetragnatha brevignatha, 100% (120 of 120); Tetragnatha anuenue, 100% (143 of 143); Tetragnatha perkinsi, 100% (100 of 100); the gray house spider, 100% (46 of 46); Tenuiphantes tenuis, 100% (48 of 48); the Miller dwarf weaver, 97% (35 of 36); Tetragnatha hawaiensis, 95% (293 of 307).

Common in Hawaii, not on the Hawaii County list

Among the spiders most recorded across Hawaii, these do not reach the county list: Tetragnatha eurychasma (105 statewide), Tetragnatha kamakou (78 statewide), Tetragnatha filiciphilia (77 statewide) and Tetragnatha stelarobusta (63 statewide). Few records here can mean the species is rare in the county, or that few people have looked.

Hawaii County among Hawaii counties

By licensed snake records Hawaii County ranks 4th of 4 Hawaii counties with any.

Other Hawaii counties with their own page: Honolulu County, Maui County and Kauai County.

The whole state: venomous species in Hawaii, all spiders.

GBIF records read 2026-09-29. Listed: any license. Counted: CC0/CC BY only. How we count.

About these numbers

A species is listed for a state once GBIF holds at least 10 records of it located inside the state by coordinates, under any license. Every count, share, month and county shown is computed only from records published under CC0 or CC BY, so a listed species can show few or no counted records. Monthly patterns show when people record snakes and spiders, which also reflects when people are outdoors. Venomous status follows taxonomy: pit vipers and coral snakes; widow and recluse spiders; the Arizona bark scorpion. Records filed under older names count for the species they belong to today. Full methodology.