Plagiolepis delaugerrei
- 学名
- Plagiolepis delaugerrei
- 族
- Plagiolepidini
- 亜科
- Formicinae
- 命名者
- Casevitz-Weulersse, 2014
- 分布
- 0 か国で発見
紹介
Plagiolepis delaugerrei is a tiny ant species endemic to Corsica, France. It measures 1 to 1.5 mm in total length, which matches the size of small workers in its host species . The ants have a compact, globular body shape and a yellowish-gray color . They live exclusively as inquilines inside the nests of Plagiolepis taurica, a member of the P. pallescens complex . This species is an extreme example of social parasitism. It appears to produce no workers of its own and relies entirely on the host colony for survival . The queens are much smaller than host queens and blend in with host workers to avoid aggression . This lifestyle makes it one of the rarest and most specialized ants known to science .
Quick Summary
- Difficulty: Expert
- Origin & Habitat: Endemic to Corsica, France. Found only on Giraglia island near the lighthouse and Genoese tower [1]. Lives inside nests of Plagiolepis taurica [1].
- Colony Type: Inquiline social parasite. Colonies consist of parasite queens living inside host nests. The species appears to produce no workers and relies entirely on host workers for all tasks [3].
- Size & Growth:
- Antkeeping:
- Behavior: Inquiline parasite behavior. Queens live inside host nests and are not attacked by host workers [3]. The species is extremely fragile and rare [1]. Adults are flightless or partially winged, suggesting low mobility [1].
- Common Issues: cannot survive without a host colony [1], extremely rare and fragile with very low fertility [1], workerless species requires an established host colony [3], no captive breeding protocols exist [1], endemic to a single tiny island, wild collection is ecologically damaging [1]
Species Overview and Rarity
Plagiolepis delaugerrei is one of the rarest ant species in Europe. Scientists found it only on Giraglia island off the coast of Corsica [1]. First described in 2014,this species represents a recently evolved lineage of inquiline social parasites [2]. Unlike normal ants that build their own colonies, P. delaugerrei lives permanently inside host nests [1]. It appears to be workerless, meaning it produces no workers of its own [1]. The species relies entirely on host workers for foraging, brood care, and nest maintenance [3]. This extreme parasitic lifestyle makes it an evolutionary dead end [2].
Why This Species Is Not Suitable for Typical Antkeepers
You cannot keep Plagiolepis delaugerrei as a pet ant. The species cannot survive without a host colony [1]. It produces no workers and cannot establish an independent colony [3]. Keeping this species would require maintaining both the parasite and a healthy host colony together, which is nearly impossible for hobbyists [1]. The ants are extremely fragile and rare in the wild [1]. There are no established protocols for breeding this species in captivity [1]. Wild collection would damage the local ecosystem given its tiny range [1]. This species belongs in scientific collections only [3].
Host Species Information
The host for P. delaugerrei is Plagiolepis taurica, which belongs to the P. pallescens complex [2]. In the wild, the parasite queen lives inside the host nest without being attacked by host workers [3]. This lack of aggression is a key trait of inquilines [3]. The parasite queen is much smaller than the host queen and matches the size of host workers [3]. This size reduction helps the parasite avoid detection [3]. Unlike slave-making ants that raid host colonies, P. delaugerrei lives peacefully inside the host nest [1].
Physical Characteristics
Plagiolepis delaugerrei measures 1 to 1.5 mm in total length [1]. The body has a compact, globular shape with a yellowish-gray color [1]. The antennae have 11 segments, and the scapes reach just to the back of the head [1]. The mandibles lack teeth, which separates it from similar species [1]. The eyes and ocelli are well-developed, and the thorax is convex [1]. The abdomen is stubby [1]. Queens have been found with partially shed wings or completely wingless [1].
Taxonomy and Evolution
Plagiolepis delaugerrei was formally described in 2014 [1]. Phylogenetic analysis shows it evolved directly from a free-living species in the P. pallescens complex [3]. The evolution of this parasite appears recent and localized to Corsica [2]. It shares a host with other workerless parasites like Plagiolepis xene and Plagiolepis ampeloni [1]. You can tell P. delaugerrei apart from them by its yellowish color, more compact body, wider thorax, and shorter antennae [1].
Frequently Asked Questions
Can I keep Plagiolepis delaugerrei as a pet ant?
No. This species is an inquiline social parasite that cannot survive without a host colony [1]. It produces no workers and relies entirely on host workers for survival [3]. There are no established captive breeding protocols [1]. The species is extremely rare and fragile [1]. You should only keep this species in professional research collections [3].
How big do Plagiolepis delaugerrei colonies get?
Unknown. This species appears to be workerless and produces no workers of its own [1]. The colony consists of parasite queens living inside a host nest, attended by host workers [3]. The number of parasites in a host nest is unknown but appears very small based on collection records [1].
What do Plagiolepis delaugerrei eat?
As an inquiline parasite, P. delaugerrei relies on host workers for food [1]. Host workers forage and feed both the host queen and the parasite queen through mouth-to-mouth food sharing [3]. The parasite eats whatever the host species P. taurica eats [1].
Where is Plagiolepis delaugerrei found?
This species is endemic to Corsica, France [1]. Scientists have only found it on Giraglia island off the northern tip of Corsica [1]. Specimens were collected near the lighthouse and between the lighthouse and the Genoese tower [1]. The entire global range consists of this single small island [2].
Is Plagiolepis delaugerrei good for beginners?
No. This species is completely unsuitable for antkeepers [1]. It cannot survive without a host colony, produces no workers, and has no established care protocols [3]. The species is one of the rarest ants in Europe [1]. Only professional myrmecologists studying social parasitism should study this species [3].
Do Plagiolepis delaugerrei queens have wings?
Queens have been found in different states [1]. The holotype specimen from July 1995 was partially de-alated, meaning it had shed some wings [1]. The paratype specimen from April 1996 was completely de-alated and wingless [1]. This suggests queens shed their wings after mating and establish themselves in the host colony [1].
How does Plagiolepis delaugerrei differ from other Plagiolepis parasites?
You can distinguish P. delaugerrei from similar species like P. xene and P. ampeloni by its yellowish color, more compact body shape, wider thorax, and shorter antennae [1]. All three species are workerless inquiline parasites of P. taurica [1]. P. delaugerrei is the most recently described and has the most restricted range [1].
Can I find Plagiolepis delaugerrei in the wild?
Extremely unlikely. Scientists have only collected a handful of specimens on a tiny island off Corsica [1]. Even professional entomologists rarely encounter this species [1]. Collecting from the wild would be ecologically irresponsible given its extremely limited range [2].
Is Plagiolepis delaugerrei invasive?
No. This species is endemic to a single small island off Corsica and has never been found outside its native range [1]. It is not invasive and cannot be kept by typical antkeepers [2].
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