Bicolored Pennant Ants: Identification, Bites, Size, And Control

Bicolored Pennant Ants

Have you ever witnessed an ant that’s not just industrious, but also dazzlingly distinct in its appearance? Enter the world of the Bicolored Pennant Ants, where color and character intertwine seamlessly.

Sporting a dual-toned exoskeleton, these ants don’t just blend into their surroundings; they stand out, marking their presence with vibrant confidence. This bicolored attire isn’t merely for show; it acts as a symbol, a unique identifier within the vast tapestry of nature.

Beyond their captivating appearance, lies an intricate society where every individual is pivotal. From the meticulous process of gathering food to safeguarding their young, these ants are emblematic of nature’s wondrous balance.

As we embark on a journey to understand them better, we’re reminded of the immense complexities hidden within the microcosms of the natural world.How about diving deep into their captivating world?

What Do Bicolored Pennant Ants look like?

The Bicolored Pennant Ant boasts a striking two-tone body and a distinctive “pennant” shape that makes it stand out in the insect world. Dive deeper to uncover the unique physical characteristics of this captivating ant:


  • Typical ants range from 3-5 mm.
  • Queens are slightly larger, up to 6 mm.

Body Color:

  • Striking bicolorous design with a light yellow-brown to red head and thorax.
  • Black abdomen occasionally punctuated with darker markings.


  • Triangular in shape.
  • Features large compound eyes.
  • Boasts a pair of 12-segmented, elbowed antennae.
  • Equipped with strong mandibles for biting and chewing.


  • Robust with three pairs of legs.
  • Legs have small spines for improved grip.
  • Reproductive members (queen and male drones) sport two pairs of wings.


  • Oval in design.
  • Ends with a defensive sting.

Distinctive Pennant Shape:

  • Defined by two raised ridges on the thorax back.
  • Believed to aid in ant-to-ant communication.

What Do Bicolored Pennant Ants Eat?

These ants are renowned for their vast dietary range, encompassing both plant and animal matter. Their non-selective eating habits mean they adapt to a multitude of food sources, complicating efforts to manage their populations.

To better understand their eclectic food choices, let’s delve deeper into what Bicolored Pennant Ants consume:

  • Insects:

These ants have a keen preference for scale insects, aphids, and mealybugs, all of which are notorious for harming plants. Their diet also encompasses termites, flies, and beetles.

  • Other Small Invertebrates:

Spiders, mites, and various small invertebrates aren’t safe from these ants. They consume both those that pose threats and those that serve as food for other pests.

  • Seeds:

Their menu includes seeds from grasses, weeds, and crops. Their fondness for crop seeds can pose challenges for farmers.

  • Nectar:

Drawing energy and carbohydrates, these ants frequent flowers to sip on their nectar.

  • Opportunistic Foraging:

Ever adaptable, they capitalize on any available food sources. This means human leftovers like crumbs and accidental spills, as well as stored items like pet food and sugar, are all fair game for them.

Where Do Bicolored Pennant Ants Live?

Bicolored Pennant Ants

Bicolored Pennant Ants are highly adaptable insects, capable of thriving in diverse habitats. Here’s a breakdown of their preferred environments:

Urban and Residential Areas

Bicolored Pennant Ants are frequently found in urban and residential settings, including parks, gardens, and neighborhoods. They establish nests in various locations such as lawns, flower beds, and beneath sidewalks. Additionally, they are known to infiltrate homes and businesses, often selecting concealed spaces for nesting.


These ants are equally at home in wooded areas, forests, and woodland edges. Within these natural settings, Bicolored Pennant Ants construct nests under leaf litter, amidst fallen logs, and in the soil.


Bicolored Pennant Ants also occupy grassy areas, taking advantage of the shelter provided by the grass and soil for nesting.

Tropical and Subtropical Regions

Bicolored Pennant Ants flourish in tropical and subtropical climates, where favorable conditions support their activities.

Nesting Sites

These ants prefer nesting in hidden or sheltered areas, which may include under stones, logs, debris, and within cracks in the soil. Additionally, they may establish satellite nests in close proximity to their main colony.

Do Bicolored Pennant Ant Bites?

Yes, Bicolored Pennant Ants possess the capability to bite, although they are not known for being inherently aggressive. Their tendency to bite is often triggered by a sense of threat or disturbance to their nest. 

While Bicolored Pennant Ant bites are generally not considered severe, they can inflict pain, discomfort, and itchiness. The affected area may also exhibit redness and swelling.

Should you find yourself bitten by a Bicolored Pennant Ant, it is advisable to promptly cleanse the bite with soap and water. Following this, the application of a cold compress can help mitigate swelling and alleviate pain.

However, in cases of severe bites or if you encounter any allergic reactions such as difficulty in breathing or swelling of the face or throat, it is crucial to seek immediate medical attention.

How to Get Rid Of Bicolored Pennant Ants?

If you discover Bicolored Pennant Ants inside your home, there are several practical steps you can take to eliminate them:

  • Remove Food Sources: These ants are attracted to food and moisture. Keep your kitchen and pantry clean, ensuring there are no food crumbs or spills. Regularly dispose of trash and store food in tightly sealed containers.
  • Seal Entry Points: Close off any cracks or gaps in your home’s foundation and exterior walls to prevent ants from entering.
  • Yard Maintenance: Maintain a clutter-free yard by removing debris like leaves and branches, as Bicolored Pennant Ants often nest in such piles.
  • Prune Trees and Shrubs: Trim trees and shrubs away from your house to reduce the chances of ants climbing inside.
  • Ant Baits and Traps: Utilize ant baits or traps available at hardware stores. Place them in areas where you’ve noticed ant activity.
  • Professional Pest Control: If self-help methods prove ineffective, consider contacting a pest control professional who can inspect your home and devise an appropriate treatment plan.

Additional Tips:

  • Essential Oils: Some essential oils like peppermint or citronella oil are believed to repel ants. You can use a few drops in a diffuser or apply directly to areas where ants are seen.
  • Diatomaceous Earth: Sprinkle diatomaceous earth, a natural powder, around your home’s perimeter and ant-prone areas; it can be effective in killing ants.
  • Vinegar: A mixture of equal parts vinegar and water in a spray bottle can deter and kill ants when applied to affected areas.

These practical approaches should help you manage and eliminate Bicolored Pennant Ants from your home effectively.


In conclusion, understanding and managing Bicolored Pennant Ants involves recognizing their unique characteristics and behaviors. These ants, with their striking appearance and adaptable nature, can be found in a variety of environments, from urban areas to forests and grasslands. 

While their bites are generally not severe, it’s important to take precautions and seek medical attention if necessary. Effective control measures include eliminating food sources, sealing entry points, and using baits or traps. Overall, a comprehensive approach is key to successfully dealing with these remarkable ants in diverse settings.