How to identify a Gulf Coast tick
Amblyomma maculatum
· Also called gulf coast tick, amblyomma maculatum, gulf coast tick bite, tick in tall gulf grass

Gulf Coast ticks look ornate like a wood tick but have a lacy silver network, not one lone-star dot. They prefer grass and coastal prairie more than deep woods.
Tall gulf grass, ornate lacy silver scutum, not one white star. People call every southern ornate tick a lone star. Painful bite. Eschar plus fever can be Rickettsia parkeri — seek care. Coastal prairie more than deep woods.
What does a gulf coast tick look like?
Ornate silver-white network on the scutum, long mouthparts. Found in tall coastal and southern-plains grass.
Gulf Coast tick (Amblyomma maculatum) is Similar to lone star adults. Colors people notice: brown, white, silver. Field marks: Ornate silver-white network on the scutum; Long mouthparts; Prefers grassy, open habitat; Can cause gotch ear in cattle; bites people too. It is found outdoor. If those marks are missing, open Lone star tick, American dog tick before you force this name. Search phrases that belong on this page include what a gulf coast tick looks like and gulf coast tick identification.
Identification marks
- Ornate silver-white network on the scutum
- Long mouthparts
- Prefers grassy, open habitat
- Can cause gotch ear in cattle; bites people too
Size: Similar to lone star adults
Colors: brown, white, silver
Where: outdoor
What a typical gulf coast tick bite looks like

Painful, inflamed bite. Rickettsia parkeri can cause a dark scab (eschar) plus fever — seek care.
People searching “gulf coast tick bite identification” want the pattern, not a single anonymous bump. Painful, inflamed bite. Rickettsia parkeri can cause a sore (eschar) plus fever. Immediate steps on this page: Remove, clean, watch for a dark scab plus fever; Seek care for fever after a Gulf Coast tick bite; Soothe mild local itch if no systemic symptoms. 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
- Remove, clean, watch for a dark scab plus fever
- Seek care for fever after a Gulf Coast tick bite
- Soothe mild local itch if no systemic symptoms
Gulf Coast tick vs Lone star tick
People call every ornate southern tick a lone star. Gulf Coast ticks have a lacy silver scutum, not one white star. They like grass and coastal prairie more than deep woods.
- Lone star tick identification (Amblyomma americanum)
- American dog tick identification (Dermacentor variabilis)
Range and season
Gulf and South Atlantic coasts, expanding inland. Warm months.
Gulf and South Atlantic coasts, expanding inland in grass.
Gulf and South Atlantic coasts, expanding inland on the southern plains. Associated with grasslands more than deep woods.
Warm months; adults often summer
Common questions
Lone star vs Gulf Coast tick?
Lone star females have one white spot. Gulf Coast ticks have a more lacy silver pattern across the shield.
What disease do they carry?
Rickettsia parkeri rickettsiosis is the standout human concern in the U.S.
Are they only on the Gulf?
The name is historical; they now occur well inland in parts of the South and southern Plains.
Gulf Coast tick vs lone star tick?
Lone star female: one white dot. Gulf Coast: ornate lacy silver, no single star.
What does a Gulf Coast tick bite look like?
Often painful and inflamed. An eschar with fever needs a clinician.
