Stictoponera coccina

Stictoponera coccina

Stictoponera coccina is a small to medium-sized ant native to southern China, specifically the Guangxi Zhuang Autonomous Region with records from Hubei province ^[1]. Workers measure 4.5-4.7mm with a distinctive dark red coloration, lighter on the antennae and legs. The head is longer than broad with small eyes placed mid-length on the head sides. The petiolar node is high and trapezoidal in profile, and the subpetiolar process has a distinctive acute anteroventral corner ^[2]. Queens are larger at 6.2mm and possess three ocelli with significantly larger eyes ^[2].

This species was formerly classified as Stictoponera coccina before being transferred to Stictoponera in 2022 ^[2]. It is closely related to Stictoponera panda but can be distinguished by its longer head (longer than broad versus broader than long in S. panda). As an ectatommine ant, this species possesses a functional stinger and is predatory in nature, typical of the subfamily.

Quick Summary

• Difficulty: Medium
• Origin & Habitat: Subtropical forests of southern China (Guangxi Zhuang Autonomous Region and Hubei province) ^[1]. Found in subtropical forest habitats at elevations ranging from tropical to subalpine zones in southwestern China.
• Colony Type: Colony structure is unconfirmed. No data available on whether this species is single-queen (monogyne) or multi-queen (polygyne).
• Size & Growth:
  • Queen: 6.2mm ^[2]
  • Worker: 4.5-4.7mm ^[2]
  • Colony: Unknown, no colony size data available
  • Growth: Unknown, growth rate has not been documented
  • Development: Unconfirmed, no direct development data exists. Based on typical Ectatomminae patterns, expect 8-12 weeks at optimal temperature. (Ectatommine ants typically develop more slowly than many common ant genera. Development time is estimated from related genus patterns, not directly observed for this species.)
• Antkeeping:
  • Temperature: Aim for roughly 22-26°C. This species comes from subtropical southern China, so moderate warmth is appropriate. A gentle gradient allowing workers to self-regulate is recommended.
  • Humidity: High humidity is likely needed, subtropical forest habitat. Keep the nest substrate consistently moist but not waterlogged. Provide a water tube for drinking access.
  • Diapause: Unknown, no data on overwintering requirements. Southern Chinese populations may have reduced activity in cooler months but diapause may not be strict.
  • Nesting: No captive nesting data exists. In nature, related species often nest in soil or rotting wood. A naturalistic setup with moist substrate or a Y-tong/plaster nest with good humidity retention would be appropriate starting points.
• Behavior: As an ectatommine ant, S. coccina is predatory and likely has an active foraging style. The functional stinger means they can defend themselves. Workers are moderately sized but escape prevention should be considered due to their small size. Temperament is likely similar to related Gnamptogenys species, typically not overly aggressive but will sting if threatened. Activity levels are likely moderate to high.
• Common Issues: lack of published care information makes husbandry challenging, start with conditions typical for subtropical ectatommine ants and adjust based on colony response, predatory diet requirements may be difficult to meet, live prey such as small insects will likely be essential, humidity requirements are not well documented but likely high, monitor for drying out, colony growth may be slow, avoid overfeeding and maintain stable conditions, escape prevention should be adequate despite their small size, they are not strong climbers

Appearance and Identification

Stictoponera coccina workers are small ants measuring 4.5-4.7mm in total length. They have a distinctive dark red coloration that is lighter on the funicular segments of the antennae and on the legs. The head is longer than broad (CI 85-88), with a concave occipital border and angular occipital corners. Eyes are small and positioned at the midlength of the head sides. The petiolar node is high and roughly trapezoidal in lateral view, while the subpetiolar process has an acute anteroventral corner and a straight ventral margin ^[2][1]. Queens are significantly larger at 6.2mm with three ocelli and much larger eyes (ED 0.21mm versus 0.06-0.07mm in workers) ^[2]. The species is closely related to Stictoponera panda but can be distinguished by the head shape, S. coccina has a longer-than-broad head while S. panda has a broader-than-long head ^[2].

Distribution and Habitat

Stictoponera coccina is known from southern China, specifically the Guangxi Zhuang Autonomous Region where the type series was collected in Lingui County, and has also been recorded from Hubei province ^[1][2]. The species occurs in subtropical forest environments. Research on ant diversity in southwestern China has recorded Stictoponera species along elevational transects from tropical to subalpine zones, suggesting they can tolerate a range of conditions within their subtropical habitat ^[1]. This distribution pattern suggests the species prefers shaded, humid forest floor environments with moderate temperatures.

Taxonomy and Nomenclature

This species was originally described as Stictoponera coccina by Zhou in 2001 from Guangxi, China, based on worker and queen specimens ^[2]. The holotype worker and 17 paratype workers plus one paratype queen were collected on July 7,1996,by S. Zhou. The type material is deposited at Guangxi Normal University (GNUC). In 2022,the genus Gnamptogenys was revised and many species were transferred to Stictoponera, including coccina, based on UCE phylogenomics research that resolved major relationships among Ectatommomorph ants ^[2]. The species remains listed as valid in all subsequent taxonomic works.

Predatory Nature and Defense

As a member of the subfamily Ectatomminae (tribe Ectatommini), Stictoponera coccina possesses a functional stinger, unlike some ant subfamilies that have lost this defense. Ectatommine ants are typically predatory, using their stinger to subdue prey. In captivity, you should expect this species to require live prey items rather than relying on sugar sources. When handling or working with the colony, exercise caution, while not typically aggressive, they will sting if they feel threatened. The sting is not medically significant for healthy humans but may cause mild irritation. This predatory nature means they are active hunters rather than scavengers. ^[2]

Care Recommendations

Since no specific husbandry data exists for S. coccina, care should be based on what is known about related ectatommine ants and the species' subtropical origin. Provide a nest environment with high humidity, a naturalistic setup with moist substrate or a Y-tong/plaster nest works well for this type of ant. Temperature should be maintained in the 22-26°C range, which is typical for subtropical species. As predators, they will need a constant supply of small live prey such as fruit flies, pinhead crickets, or other tiny insects. A water tube should be provided for drinking access. Escape prevention is important despite their small size, use appropriate barriers. Start with these conditions and observe colony behavior, adjust temperature and humidity based on activity levels and brood development. ^[1]

Frequently Asked Questions

References