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.
Asian lady beetleBe carefulCommon · 1,373 records
Yellow garden spiderBe carefulCommon · 1,046 records
Eastern carpenter beeBe carefulCommon · 976 records
Spotted orbweaverHarmlessCommon · 508 records
Pill bugHarmlessCommon · 417 records
Tan jumping spiderHarmlessCommon · 358 records
Southern black widowGet adviceEstablished · 354 records
Red imported fire antBe carefulEstablished · 309 records
Bold jumping spiderHarmlessCommon · 305 records
Black carpenter antHarmlessCommon · 294 records
Brown marmorated stink bugHarmlessCommon · 223 records
Greenhouse millipedeHarmlessCommon · 179 records
Dark fishing spiderBe carefulCommon · 171 records
Eastern yellowjacketBe carefulCommon · 162 records
Brown recluseGet adviceEstablished · 159 records
American cockroachBe carefulCommon · 146 records
Southern house spiderHarmlessCommon · 140 records
Brown widowGet adviceEstablished · 128 records
Lone star tickGet adviceEstablished · 111 records
Varied carpet beetleHarmlessCommon · 92 records
Common house spiderHarmlessCommon · 67 records
American dog tickGet adviceEstablished · 64 records
Long-bodied cellar spiderHarmlessCommon · 44 records
Blacklegged tickGet adviceEstablished · 42 records
Argentine antHarmlessCommon · 34 records
House centipedeBe carefulCommon · 25 records
Brown dog tickGet adviceEstablished
Yellow fever mosquitoBe carefulEstablished
House mosquitoBe carefulEstablishedWhat 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.
Indianmeal mothHarmlessOccasional · 23 records
Odorous house antHarmlessOccasional · 18 records
German cockroachBe carefulOccasional · 18 records
Greenhouse camel cricketHarmlessOccasional · 16 records
Boxelder bugHarmlessOccasional · 15 records
European paper waspBe carefulOccasional · 14 records
House flyBe carefulOccasional · 14 records
House cricketHarmlessOccasional · 11 records
False black widowBe carefulOccasional · 7 records
Cat fleaBe carefulOccasional · 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 (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.

