Bugs and spiders in West Virginia
Asian lady beetles are the most-recorded species in West Virginia, followed by spotted lanternflies and brown marmorated stink bugs. What stands out is the blacklegged tick, which has more records here than any other Get-advice species by a wide margin and is among the most-recorded species on the whole list. Only one widow spider is established, the northern black widow.
Get advice if bitten
These are found in West Virginia. If you think one bit or stung you, call Poison Help at 1-800-222-1222; call 911 for trouble breathing or swelling.
Common in West Virginia
Established here or recorded often, most-recorded first.
Asian lady beetleBe carefulCommon · 1,552 records
Spotted lanternflyHarmlessEstablished · 1,324 records
Blacklegged tickGet adviceEstablished · 1,211 records
Brown marmorated stink bugHarmlessCommon · 738 records
Eastern carpenter beeBe carefulCommon · 699 records
Dark fishing spiderBe carefulCommon · 598 records
Bold jumping spiderHarmlessCommon · 597 records
Boxelder bugHarmlessCommon · 383 records
Tan jumping spiderHarmlessCommon · 346 records
American dog tickGet adviceEstablished · 330 records
Yellow garden spiderBe carefulCommon · 306 records
Black carpenter antHarmlessCommon · 274 records
Eastern yellowjacketBe carefulCommon · 271 records
Spotted orbweaverHarmlessCommon · 268 records
Pill bugHarmlessCommon · 219 records
Greenhouse millipedeHarmlessCommon · 201 records
House centipedeBe carefulCommon · 175 records
European paper waspBe carefulCommon · 134 records
European earwigHarmlessCommon · 108 records
Pavement antHarmlessCommon · 104 records
Northern black widowGet adviceEstablished · 81 records
Varied carpet beetleHarmlessCommon · 80 records
Odorous house antHarmlessCommon · 79 records
Western conifer seed bugHarmlessCommon · 79 records
Woodlouse spiderHarmlessCommon · 78 records
Long-bodied cellar spiderHarmlessCommon · 75 records
Zebra jumping spiderHarmlessCommon · 72 records
Lone star tickGet adviceEstablished · 57 records
Oriental cockroachBe carefulCommon · 48 records
Greenhouse camel cricketHarmlessCommon · 39 records
Indianmeal mothHarmlessCommon · 39 records
Brown dog tickGet adviceEstablished
House mosquitoBe carefulEstablishedWhat to watch for in West Virginia
Ticks are the main concern. Blacklegged, American dog, lone star and brown dog ticks are all established, and the blacklegged tick is recorded most. Blacklegged ticks can be active in any month when temperatures are above freezing, and they can carry disease. Lone star bites are also linked to alpha-gal syndrome, a red-meat allergy. Check yourself and pets after time outdoors.
Northern black widow is the one established Get-advice spider. The southern black widow has records but is not known to live in the state, and those sightings are often misidentified spiders or hitchhikers. Poison Help at 1-800-222-1222 is the number for a bite that worries you. Eastern yellowjackets are common and most noticed around food and trash in late summer.
Through the year
- Spring
- Eastern carpenter bees are out in April through June, spotted lanternfly nymphs start in late April, and Asian lady beetles try to leave on warm days through April.
- Summer
- Spotted lanternfly adults appear from July, dark fishing spiders and European paper wasps are around the house, and yellowjacket nests keep growing.
- Fall
- Late August brings the first boxelder bugs indoors, Asian lady beetles, stink bugs and western conifer seed bugs follow in September and October, and yellow garden spiders are at their most noticeable.
- Winter
- Blacklegged ticks can be active whenever temperatures are above freezing, house centipedes get noticed more indoors, and brown marmorated stink bugs stir on warm days.
Seen now and then
Recorded a few times; often brought in on plants, firewood or luggage.
Broad-faced sac spiderBe carefulOccasional · 23 records
Fruit flyHarmlessOccasional · 15 records
American cockroachBe carefulOccasional · 14 records
Barn funnel weaverHarmlessOccasional · 13 records
Common house spiderHarmlessOccasional · 12 records
Bed bugBe carefulOccasional · 12 records
German cockroachBe carefulOccasional · 10 records
SilverfishHarmlessOccasional · 9 records
House flyBe carefulOccasional · 6 records
Northern yellow sac spiderBe carefulOccasional · 3 records
Black carpet beetleHarmlessOccasional · 3 recordsRecorded, not established
Range maps don't place these here, but people have recorded them. Usually hitchhikers.
Lists come from research-grade iNaturalist sightings (West Virginia: 152,016 arthropod records) and, for dangerous species, published range maps. A species with few records may be a hitchhiker. Counts pulled Oct 18, 2026.

