Pheidole hazenae

Quick Summary

• Difficulty: Hard
• Origin & Habitat: Ecuador and Colombia, second-growth forest at 600-800m elevation ^[2][1]
• Colony Type: Unconfirmed, colony structure has not been documented
• Size & Growth:
  • Queen: Size data unavailable, inferred from Pheidole genus patterns (~6 mm)
  • Worker: Size data unavailable, inferred from Pheidole genus patterns (~1-3 mm)
  • Colony: Unknown
  • Growth: Unknown
  • Development: Unknown, no data available (Based on typical Pheidole patterns, expect 6-10 weeks at warm temperatures, but this is an estimate only)
• Antkeeping:
  • Temperature: Unknown, start around 22-26°C and observe colony activity
  • Humidity: Unknown, likely requires moderate humidity based on forest origin
  • Diapause: Unknown, Neotropical species may not require strong diapause
  • Nesting: No specific data, likely nests in soil or under stones in captivity
• Behavior: Not documented, as a Myrmicine, they have a stinger, but it is not medically significant to humans. Escape prevention is important due to small size. Likely non-aggressive but will defend the nest if threatened.
• Common Issues: experimental keeping with no established care protocols may lead to colony failure, small size increases escape risk, requiring careful containment, potential for cryptic species means geographic origin may affect care, no information on founding success rates, wild-caught colonies may have parasites with no documented treatment

Species Identification and Morphology

Pheidole hazenae is a medium-sized yellow species belonging to the flavens group. The major workers have a distinctive head shape, moderately convex (not bulging like the similar P. camilla), and feature exclusively carinulate sculpturing on the dorsal head surface ^[1]. The propodeal spines are vertical and curve forward when viewed from the side ^[1]. At 50-60X magnification, the tips of the mesosomal and gastral hairs are not flattened, unlike P. camilla ^[1]. The minor workers have not been specifically diagnosed or measured. The uniform yellow coloration distinguishes this species from populations in Colombia, which are notably larger and darker and may represent a separate species ^[1].

Distribution and Habitat

This species is known only from the Neotropical region, specifically Ecuador and Colombia ^[1][2]. The type locality is Rio Palenque Station in Ecuador,47km south of Santo Domingo in Pichincha province ^[2]. In Colombia, specimens have been collected from Zona Buenos Aires at 600-800m elevation ^[2][1]. The habitat is described as second-growth forest ^[2]. The Colombian specimens are larger and darker than the Ecuadorian type specimens, which researchers note may indicate a distinct species ^[1].

Keeping Considerations

Pheidole hazenae has not been documented in the antkeeping hobby ^[2]. Therefore, all care recommendations are based on general Pheidole genus knowledge and inference from its habitat. As a member of the Attini tribe, they likely harvest seeds. The major/minor worker dimorphism typical of Pheidole means you'll have significantly smaller minor workers alongside the larger majors, requiring appropriate escape prevention. Given how little is known about this specific species, keeping it would be experimental and would contribute valuable information if successful.

Research Gaps

This is one of the least documented ant species in the hobby literature. No scientific papers describe its colony structure, founding behavior, development timeline, temperature preferences, humidity needs, or diet in captivity. The only morphological measurements available are for major workers, with minor workers and queens entirely undescribed ^[1]. The potential that Colombian populations represent a distinct species adds further uncertainty. Any keeper attempting to maintain this species would be pioneering entirely new husbandry methods.

Frequently Asked Questions

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References