Bugs and spiders in Kansas
Yellow garden spiders and bold jumping spiders are the most recorded in Kansas, with Asian lady beetles close behind. The brown recluse, a Get-advice spider, is also among the most-recorded species in the state. Three widow species and four ticks are established, and the Carolina wolf spider is a common visitor in fall.
Get advice if bitten
These are found in Kansas. 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 Kansas
Established here or recorded often, most-recorded first.
Yellow garden spiderBe carefulCommon · 1,457 records
Bold jumping spiderHarmlessCommon · 1,454 records
Asian lady beetleBe carefulCommon · 1,414 records
Tan jumping spiderHarmlessCommon · 923 records
Brown recluseGet adviceEstablished · 879 records
Eastern carpenter beeBe carefulCommon · 876 records
Pill bugHarmlessCommon · 644 records
Spotted orbweaverHarmlessCommon · 604 records
Lone star tickGet adviceEstablished · 427 records
Brown marmorated stink bugHarmlessCommon · 254 records
Black carpenter antHarmlessCommon · 253 records
Boxelder bugHarmlessCommon · 242 records
Eastern yellowjacketBe carefulCommon · 226 records
Dark fishing spiderBe carefulCommon · 197 records
Varied carpet beetleHarmlessCommon · 195 records
American dog tickGet adviceEstablished · 185 records
Western black widowGet adviceEstablished · 160 records
Carolina wolf spiderBe carefulCommon · 132 records
Greenhouse camel cricketHarmlessCommon · 129 records
Oriental cockroachBe carefulCommon · 107 records
Southern black widowGet adviceEstablished · 95 records
Woodlouse spiderHarmlessCommon · 95 records
House centipedeBe carefulCommon · 93 records
Greenhouse millipedeHarmlessCommon · 86 records
Northern black widowGet adviceEstablished · 69 records
Western conifer seed bugHarmlessCommon · 64 records
American cockroachBe carefulCommon · 61 records
Indianmeal mothHarmlessCommon · 57 records
Odorous house antHarmlessCommon · 56 records
Common house spiderHarmlessCommon · 37 records
Long-bodied cellar spiderHarmlessCommon · 34 records
European paper waspBe carefulCommon · 29 records
Blacklegged tickGet adviceEstablished · 21 records
Brown dog tickGet adviceEstablished
House mosquitoBe carefulEstablishedWhat to watch for in Kansas
Kansas has four Get-advice spiders established. The brown recluse is heavily recorded, and the western, southern and northern black widows all live here, with the western the most recorded. Black widow bites can cause strong muscle pain and cramps, and some recluse bites heal slowly. If a bite worries you, get medical advice or call Poison Help (1-800-222-1222).
The lone star tick is the most recorded tick, then the American dog tick, and both are established. So is the blacklegged tick, though it is recorded far less often. All can carry disease, and lone star bites are linked to alpha-gal syndrome. The brown dog tick feeds mainly on dogs and can breed indoors. The Carolina wolf spider is rated Be careful rather than Get advice.
Through the year
- Spring
- Eastern carpenter bees get busy as the weather warms, and black carpenter ant swarmers can show up indoors in March through June.
- Summer
- Widows are seen most from late spring on, yellow garden spiders build webs near the house, and yellowjacket nests grow larger.
- Fall
- Carolina wolf spider males wander in late summer and fall, and Asian lady beetles, boxelder bugs and stink bugs move into houses.
- Winter
- Greenhouse camel crickets turn up in basements, house centipedes stay active indoors, and Indianmeal moths are most noticed between November and February.
Seen now and then
Recorded a few times; often brought in on plants, firewood or luggage.
Zebra jumping spiderHarmlessOccasional · 24 records
Pavement antHarmlessOccasional · 22 records
Broad-faced sac spiderBe carefulOccasional · 20 records
Barn funnel weaverHarmlessOccasional · 17 records
Bed bugBe carefulOccasional · 17 records
German cockroachBe carefulOccasional · 17 records
House flyBe carefulOccasional · 12 records
Brown-banded cockroachBe carefulOccasional · 8 records
Rough sowbugHarmlessOccasional · 6 records
Fruit flyHarmlessOccasional · 6 records
Cat fleaBe carefulOccasional · 4 records
Camel crickets (native)HarmlessOccasional · 4 records
SilverfishHarmlessOccasional · 3 recordsLists come from research-grade iNaturalist sightings (Kansas: 155,367 arthropod records) and, for dangerous species, published range maps. A species with few records may be a hitchhiker. Counts pulled Oct 18, 2026.
