Insect identifier · Indoor insects
How to identify a Western conenose
Triatoma protracta
· Also called western kissing bug, triatoma protracta, kissing bug california, pack rat bug
California and Arizona cabin kissing bug. Known for large allergic bite reactions. Cone head, much larger than a bed bug.
California and Arizona cabin, cone head, pack rats, porch light, large allergic welt. Not a bed bug. Bag the insect, do not crush it. Breathing trouble is emergency care. Ask public health about testing if ID is confirmed. U.S. Chagas is uncommon; the allergic bite is not.
What does a western conenose look like?
Mostly dark, cone-shaped head, associated with woodrats (pack rats), night feeder attracted to lights.
Western conenose (Triatoma protracta) is About 20 mm. Colors people notice: black, brown. Field marks: Cone-shaped head; Mostly dark, less orange trim than some eastern kissing bugs; Night feeder; Associated with woodrats (pack rats). It is found both. If those marks are missing, open Kissing bug, Bed bug before you force this name. Search phrases that belong on this page include what a western conenose looks like and western conenose identification.
Identification marks
- Cone-shaped head
- Mostly dark, less orange trim than some eastern kissing bugs
- Night feeder
- Associated with woodrats (pack rats)
Size: About 20 mm
Colors: black, brown
Where: both
What a typical western conenose bite looks like
Itchy or swollen welt, sometimes a large local allergic reaction. Bag the insect; do not crush. Breathing difficulty is emergency care. Ask public health about Chagas testing if ID is confirmed.
People searching “western conenose bite identification” want the pattern, not a single anonymous bump. Itchy or swollen welt, sometimes a large local allergic reaction — more common with this species than people expect. Immediate steps on this page: Bag the insect for ID if you still have it; do not crush; Wash the bite; Allergic swelling can be significant — seek care if spreading or you have trouble breathing; Ask public health about Chagas testing if ID is confirmed. This species does bite or sting people. Fever, spreading redness, trouble breathing, or a child with many stings is professional care.
If you were bitten
- Bag the insect for ID if you still have it; do not crush
- Wash the bite
- Allergic swelling can be significant — seek care if spreading or you have trouble breathing
- Ask public health about Chagas testing if ID is confirmed
Western conenose vs Kissing bug
Western kissing bug, woodrat cabins, large allergic welts. Still a cone head, still not a bed bug. Eastern Triatoma species are a different range.
- Kissing bug identification (Triatoma sanguisuga)
- Bed bug identification (Cimex lectularius)
- Assassin bug identification (Reduviidae (wheel bug and kin))
Range and season
Southwestern U.S., warm nights.
Southwest cabins, pack-rat nests, porch lights on warm nights.
Southwestern U.S., especially California and Arizona around woodrat nests and cabins.
Warm nights, attracted to lights
Common questions
Western conenose vs eastern kissing bug?
Both are triatomines. T. protracta is the common California/Arizona cabin species and is known for allergic bite reactions.
Chagas risk?
Possible but uncommon in the U.S. Confirm the bug and talk to public health rather than assuming the worst.
Bed bug size?
Conenose bugs are much larger.
Are there kissing bugs in California?
Yes. Triatoma protracta is the western conenose, often around woodrats and cabins.
Western conenose vs bed bug?
Conenose is much larger with a cone-shaped head. Bed bugs are small, flat, and mattress-tied.