Bugs and spiders in Mississippi

Asian lady beetles, yellow garden spiders and eastern carpenter bees are recorded more often than anything else in Mississippi, with spotted orbweavers next. The list here is on the shorter side. Southern black widow, brown widow, brown recluse and four ticks are all established, along with red imported fire ants.

Get advice if bitten

These are found in Mississippi. 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 Mississippi

Established here or recorded often, most-recorded first.

What to watch for in Mississippi

Three Get-advice spiders are established in Mississippi: the southern black widow, the brown widow and the brown recluse. The southern black widow is the one recorded most. Look before you reach into woodpiles, closets and garages. The northern black widow has records here but is not known to live in the state, and sightings like that are often hitchhikers or misidentified spiders. For a bite that worries you, call Poison Help at 1-800-222-1222.

The established ticks are the lone star, American dog, blacklegged and brown dog tick, and all can carry disease. Lone star tick bites are also linked to alpha-gal syndrome, a red-meat allergy. Eastern yellowjackets and American cockroaches are common, and the yellow fever mosquito and house mosquito are both established.

Through the year

Spring
Eastern carpenter bees drill and hover in April through June, pill bugs come in after long rainy periods, and lone star tick adults are most active about April through June.
Summer
American cockroaches are most active in the warm months, greenhouse millipedes show up after heavy rain, and mosquito season runs roughly June through October, or longer in the warmest areas.
Fall
Asian lady beetles arrive in October and November, brown marmorated stink bugs from late September, and yellow garden spiders and spotted orbweavers are most noticeable.
Winter
Southern black widows can be found indoors year-round in sheltered spots, house centipedes are noticed more in winter, 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.

Recorded, not established

Range maps don't place these here, but people have recorded them. Usually hitchhikers.

Lists come from research-grade iNaturalist sightings (Mississippi: 119,001 arthropod records) and, for dangerous species, published range maps. A species with few records may be a hitchhiker. Counts pulled Oct 18, 2026.

Identify a bug in Mississippi