Cataglyphis flavobrunnea

Quick Summary

• Difficulty: Medium
• Origin & Habitat: Desert regions of the Arabian Peninsula (Oman, Saudi Arabia, UAE, Yemen). Specimens collected from locations like Sweihan in the UAE and Jeddah in Saudi Arabia ^[2][3].
• Colony Type: Unconfirmed. Colony structure and queen number are not documented. Most likely a single queen based on genus patterns, but this is not certain.
• Size & Growth:
  • Queen: Unknown, no queen measurements available in the literature.
  • Worker: ~8.81mm total length ^[3].
  • Colony: Unknown, not documented in available research.
  • Growth: Moderate (inferred from related Cataglyphis species).
  • Development: Unknown, no direct data. Based on related desert Cataglyphis ants, expect roughly 6-10 weeks at warm temperatures. (Development time is an estimate and may vary with temperature.)
• Antkeeping:
  • Temperature: Warm required. Keep nest area around 26-32°C with a gradient. At room temperature (20-24°C) they are less active, but warmer conditions promote growth. Avoid prolonged temperatures below 15°C.
  • Humidity: Low to moderate, these are desert ants. Keep nesting material mostly dry, provide a small water source in the outworld, but avoid damp nest chambers. Think sandy desert floor.
  • Diapause: Likely minimal or none. Desert species from warm climates may not need true hibernation, but a brief cool period (2-4 weeks at 15-18°C) during winter may be tried.
  • Nesting: Dry, sandy substrate preferred. Y-tong AAC, plaster, or 3D-printed nests with low humidity work well. Avoid test tubes that trap too much moisture. Good ventilation is key.
• Behavior: Active, fast foragers. Like other Cataglyphis, they have excellent vision and don't rely on chemical trails. Probably diurnal and aggressive when defending the nest. They can bite but lack a sting, harmless to humans. Escape risk is moderate: they are medium-sized ants and good climbers.
• Common Issues: desert species prone to mold in overly humid conditions, keep nesting area dry., may slow down or struggle in cool temperatures, provide steady heat., limited information makes care partly experimental, be prepared to adapt., colony founding is unstudied, patience required during early stages., wild-caught colonies may carry mites or disease, quarantine before housing.

Natural History and Distribution

Cataglyphis flavobrunnea lives in the deserts of Oman, Saudi Arabia, United Arab Emirates, and Yemen ^[1][2]. It was first described in 1996 by Collingwood and Agosti, and redescribed in 2015 by Sharaf et al. ^[3]. Most specimens were collected singly, so we know little about their colony structure ^[3]. The type locality is Jeddah, Saudi Arabia, with specimens collected in May 1978 ^[3]. In the UAE, they have been found near Sweihan in 1995 and 2005 ^[2]. Their home is a hot, dry, sandy or rocky environment.

Identification and Morphology

Workers are 8.81mm total length ^[3]. The body is brownish with a dirty yellow gaster, which is a key feature to tell them apart from the similar Cataglyphis laevior ^[3]. The head and top of the body are covered in dense white pubescence, giving a frosty look, while the gaster is smooth and shiny ^[3]. Major workers have a nearly square head, while minor workers have a slightly rounded back edge ^[3]. The propodeum has two pairs of upright hairs, and the pronotum and mesonotum each have one pair ^[3].

Nest Preferences and Housing

Dry conditions are essential. Use a Y-tong AAC, plaster, or 3D-printed nest that allows you to keep the nest chambers mostly dry. A sand-based naturalistic setup also works if you control moisture carefully. Provide a small water tube in the outworld for drinking, but avoid getting the nest material wet. Good ventilation helps prevent mold. Do not use a test tube setup that stays damp, these ants need airflow. Keep the outworld warm (26-32°C) and the nest slightly cooler so workers can choose.

Feeding and Diet

Like most Cataglyphis, these ants are omnivores. Offer sugar water or honey continuously for energy, and small insects (fruit flies, small crickets, mealworms) 2-3 times a week for protein. Remove uneaten prey after 24 hours to avoid mold. They are active hunters and will chase moving prey, so live or freshly killed insects work best.

Temperature and Seasonal Care

Keep the colony warm, outworld at 26-32°C, nest slightly cooler. Use a heat mat on one side to create a gradient. In winter, you can try a brief cool period of 2-4 weeks at 15-18°C, but true hibernation is probably not needed. If workers slow down, raise the temperature. Avoid any extended period below 15°C, as this may kill the colony.

Behavior and Temperament

These ants are fast, visual hunters. They are likely active during the day, foraging in the heat when other ants stay hidden. They defend their nest aggressively but are harmless to people, they can bite but have no sting. Use fluon or similar barriers on the outworld rim, as they are active climbers. They are not aggressive toward the keeper outside the nest, but will defend the entrance if disturbed.

Frequently Asked Questions

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References