Scientific illustration of Dolichoderus lobicornis ant - showing key identification features including head, thorax, and gaster.

Dolichoderus lobicornis

Monogínica Non-Parasitic Queen Não Gamergate
Nome científico
Dolichoderus lobicornis
Tribo
Dolichoderini
Subfamília
Dolichoderinae
Autor
Kempf, 1959
Distribuição
Encontrada em 3 países
Identificável por IA
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Introdução

Dolichoderus lobicornis is a Neotropical ant species native to South America, found in Brazil, Colombia, Peru, and Ecuador . Workers are small, but exact body size measurements are not available from the research . These ants are exclusively arboreal, living in forest canopies and tree layers . This species was originally described as Monacis lobicornis in 1959 and transferred to Dolichoderus in 1992 . Notably, it is exclusively arboreal, as documented in Brazilian Cerrado ecosystems where it is found only in the tree layer .

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Status por país, desde Kass et al. 2022 & Wong et al. 2023

Nativa Invasiva Introduzida (Ambiente urbano/interno) Interceptada Desconhecido
Fontes de dados
Intervalo de anos 2000 - 2026

Quick Summary

  • Difficulty: Medium
  • Origin & Habitat: Neotropical rainforests of Brazil, Colombia, Peru, and Ecuador. Found in canopy and soil layers in Venezuelan forests [6], and exclusively arboreal in Brazilian Cerrado [5].
  • Colony Type: Unconfirmed, no specific data on queen number or social structure.
  • Size & Growth:
    • Queen: Size data unavailable, no total length measurements in research.
    • Worker: Size data unavailable, no total length measurements in research.
    • Colony: Unknown, no colony size data in research.
    • Growth: Unknown
    • Development: Unknown, no development data in research. (Development timeline is not documented for this species.)
  • Antkeeping:
    • Temperature: Keep warm, roughly 24-28°C, based on tropical habitat. Specific requirements are not documented in research.
    • Humidity: Keep nest substrate consistently moist but not waterlogged, as they are forest ants.
    • Diapause: No, as a tropical species, they do not require hibernation.
    • Nesting: Arboreal nesters, provide vertical space with branches and climbing structures. Use Y-tong or plaster nests.
  • Behavior: These ants are arboreal and generally calm. They defend nests with chemical compounds, not stings. Escape risk is moderate due to climbing ability [5].
  • Common Issues: tropical species requires consistent warmth, cold temperatures can slow brood development., arboreal nature means they need vertical space and climbing structures., escape risk exists due to climbing ability, ensure secure barriers., overfeeding can lead to mold in the nest, remove uneaten food promptly.

Natural History and Distribution

Dolichoderus lobicornis is found across northern South America. The species has been documented in Brazil (Santa Catarina, Goiás, Pará, Rio de Janeiro, São Paulo, and Mato Grosso states), Colombia (Amazonas region), Peru (Madre de Dios), and Ecuador [1][2][3]. In Venezuela, they have been found both in the forest canopy and in soil samples at San Ignacio [6]. Notably, in Brazilian Cerrado ecosystems, this species is exclusively arboreal, found only in the tree layer with 13% relative frequency, and completely absent from soil and shrub layers [5].

Nest Preferences and Housing

Based on their exclusively arboreal nature [5], these ants need vertical space with climbing structures in captivity. Use Y-tong (AAC) or plaster nests with branches, twigs, or other climbing materials. The nest chambers should be appropriately sized for small workers. Since they naturally live in tree cavities, provide dark, enclosed spaces for the nest site. The outworld should include vertical elements for foraging. Ensure escape prevention is solid, as their climbing ability is good.

Feeding and Diet

Based on typical Dolichoderus patterns, these ants are likely generalist omnivores. Offer a consistent sugar source such as sugar water, honey, or diluted maple syrup. For protein, provide small insects like fruit flies, small crickets, or mealworms. Feed protein 2-3 times per week and keep sugar water available at all times. Remove uneaten prey after 24 hours to prevent mold.

Temperature and Seasonal Care

As a tropical species from the Neotropical region, Dolichoderus lobicornis requires warm temperatures year-round. Maintain the nest area at roughly 24-28°C. A heating cable on one side of the nest creates a gentle gradient allowing workers to self-regulate. These ants do not require hibernation, maintain consistent warm conditions for healthy brood development.

Behavior and Colony Dynamics

This species exhibits typical Dolichoderine behavior, generally calm and not aggressive toward keepers. When threatened, they release chemical compounds from their anal gland, which is their primary defense mechanism (Dolichoderinae ants lack a functional stinger). Workers are active foragers that explore the upper portions of their enclosure. Based on typical genus behavior, colonies may grow over time, but specific size data is unknown.

Frequently Asked Questions

How long does it take for Dolichoderus lobicornis to produce first workers?

Development timeline is unknown for this species, no research data is available. Based on typical ant patterns, it may take several weeks at warm temperatures, but specifics are not documented.

What do Dolichoderus lobicornis ants eat?

They are likely generalist omnivores. Offer sugar sources like honey water and protein like small insects 2-3 times per week.

What temperature do Dolichoderus lobicornis need?

Keep them at roughly 24-28°C. As a tropical species, they require consistent warmth year-round.

Can I keep Dolichoderus lobicornis in a test tube?

Test tubes can work for founding colonies, but these arboreal ants will do better in setups with vertical climbing space. Consider transitioning to a Y-tong or plaster nest with branches as the colony grows.

Are Dolichoderus lobicornis good for beginners?

This species is rated as Medium difficulty. They require tropical temperatures and have less documented care information, so some experience with ant keeping is helpful.

Do Dolichoderus lobicornis need hibernation?

No. As a tropical Neotropical species, they do not require hibernation or winter cooling. Maintain warm temperatures year-round.

How big do Dolichoderus lobicornis colonies get?

Colony size is unknown for this species, no research data is available. Based on typical Dolichoderus patterns, colonies may grow to moderate sizes, but specifics are not documented.

What type of nest is best for Dolichoderus lobicornis?

A Y-tong (AAC) nest or plaster formicarium works well. These arboreal ants need vertical climbing structures, so add branches or twigs for them to traverse.

Where is Dolichoderus lobicornis found in the wild?

They are native to South America, found in Brazil, Colombia, Peru, and Ecuador. They are exclusively arboreal, living in forest canopies and tree layers rather than in soil [1][5].

Why are my Dolichoderus lobicornis not developing?

Check temperature first, they need warm conditions around 24-28°C for proper brood development. Cooler temperatures will slow or stop development. Also ensure humidity is adequate and remove uneaten food to prevent mold.

Is Dolichoderus lobicornis aggressive?

No, they are generally calm and not aggressive toward keepers. Their main defense is chemical, they release smelly compounds when disturbed rather than attacking.

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References

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Este guia de cuidados está sob a licença CC BY-SA 4.0 .