Alien: Earth season 1 has five extraterrestrial cargo species—not just the Xenomorph. The Maginot carries the Xenomorph, Trypanohyncha Ocellus (Species 64), Species 19, D. Plumbicare, and the metal-eating Fly. Here is what each organism does, which names are formal, and what the season actually confirms.
Spoilers through Alien: Earth season 1, episode 8.
The Maginot carries five invasive extraterrestrial species: the familiar Xenomorph, Trypanohyncha Ocellus (Species 64, the “Eye Midge”), Species 19 (the blood-feeding ticks), D. Plumbicare (the carnivorous “Orchid”), and the metal-eating Fly. The facehugger and chestburster are stages in the Xenomorph’s life cycle, not separate species, while the sheep, cat, humans, synthetics, and other infected organisms are hosts or victims.
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| Species or designation | Common label | How it feeds or attacks | Defining danger |
|---|---|---|---|
| Trypanohyncha Ocellus / Species 64 | Eye Midge, Eye Octopus, eyeball creature | Replaces an eye and hijacks the body’s neural pathways | Intelligent manipulation and postmortem possession |
| Species 19 | Ticks or blood ticks | Feeds on blood and can contaminate liquids | Small, difficult-to-detect outbreak threat |
| D. Plumbicare | Orchid or alien carnivorous plant | Lures and traps prey inside closing leaf structures | Ambushes victims from apparently stationary surroundings |
| The Fly | Fly | Uses corrosive secretion to soften and consume metal, alloys, and minerals | Especially dangerous to synthetics and containment systems |
| Xenomorph | Alien, drone | Parasitic reproduction through eggs, facehuggers, and hosts | Direct physical lethality and corrosive blood |
Trypanohyncha Ocellus: the Eye Midge or Species 64
The most behaviorally developed of the new creatures is Trypanohyncha Ocellus, cataloged as Species 64. Viewers and characters also refer to it with informal labels including the Eye Midge, Eye Octopus, and eyeball creature. Those nicknames describe its appearance, but they should not be treated as confirmed scientific names.
The specimen has a smooth body, several ocular irises, and tentacles that extend and retract. Its signature method of taking control is brutally precise: it dislodges a host’s eye, enters the socket, connects with ocular pathways, and overrides neural signals through the body. The result is not merely an animal carrying a parasite. The creature can operate the host as a living or dead puppet.
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What makes Species 64 different from an ordinary parasite?
Alien: Earth repeatedly shows planning and opportunistic problem-solving. On the Maginot, the organism distracts Chibuzo while a tick escapes, then knocks its own container from a shelf to free itself. At Neverland, it manipulates events so that Tootles traps himself inside the Fly enclosure. These actions suggest deliberate strategy rather than simple reflex.
The creature first takes over a sheep. The animal’s increased gamma-wave activity is presented as evidence of heightened concentration or problem-solving. Later, Species 64 occupies human corpses and other hosts. The most disturbing discovery is that it does not need a living body: Arthur’s corpse demonstrates that the organism can animate a body that has already been dead for some time.
That makes Species 64 both a parasite and a postmortem puppeteer. The season establishes sophisticated behavior, but it does not explain whether the creature has a language, a social structure, a reproductive cycle, or a larger civilization. Calling it “the smartest species” is therefore an interpretation based on its observed behavior, not a fact the show states outright.
Species 19: the blood-feeding ticks
Species 19 resembles an oversized tick or leech. It feeds from victims’ blood, especially oxygenated blood, and can attack the neck. Although living hosts are its most obvious target, the species can also consume dead tissue when necessary.
Its greatest advantage is concealment. A tick gets into Chibuzo’s water bottle, turning an ordinary drink into a route for exposure. The incident shows why Species 19 is dangerous even when no large creature is visible: it can enter a confined environment through a small opening and use an everyday liquid as a delivery mechanism.
Later, more of the creatures escape and create an outbreak aboard the ship. Their threat is less visually spectacular than the Xenomorph’s, but potentially broader. A Xenomorph generally announces itself through a direct attack; Species 19 can remain unnoticed, feed from multiple victims, and spread danger through a group that may not know it has been exposed.
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The show does not give Species 19 a binomial name. “Species 19” is the catalog designation, while “tick” and “blood tick” are practical descriptive labels.
D. Plumbicare: the alien carnivorous plant
D. Plumbicare is the specimen that initially looks least like an animal. It resembles an alien plant, leading to the nickname “Orchid.” The more authoritative in-universe designation currently available is D. Plumbicare; “Orchid” is a descriptive audience and production label, not necessarily a formal taxonomic name.
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1Repair Windows errors before they cause bigger problems2Scan for outdated or missing drivers - takes under a minute3Clear out junk files and repair common Windows errorsThe specimen typically hangs from an overhead surface and waits for prey. Its filament or stamen-like appendage senses environmental conditions and can attract or engage a victim. Leaf-like structures then close around the body. The specimen notes identify several possible causes of death: asphyxiation, dissolution, or exhaustion while the victim tries to escape. After death, enzymatic breakdown begins.
Although it is primarily carnivorous, the organism has also been observed consuming nearby vegetation when conditions are difficult. That detail makes it more than a simple trap: it is an organism adapted to extract nourishment from whatever viable material is available.
Its apparent passivity is a deception. At Neverland, a specimen attacks Siberian from the ceiling and kills her. The danger comes from the mismatch between appearance and behavior. A stationary plant can be overlooked as part of the room until the victim is already within reach.
The comparison with Earth carnivorous plants, particularly sundews in the genus Drosera, is analogical. D. Plumbicare is extraterrestrial; the show does not establish that it is related to any terrestrial plant.
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The Fly: a metal-eating threat to synthetics
The Fly is a winged, six-legged extraterrestrial insect that feeds on metals, alloys, and minerals. It is not an evolved terrestrial housefly, despite the convenient name.
Its trunk-like appendage secretes a corrosive substance that melts or softens metallic material. The Fly can then consume the softened substance. This diet gives it a distinctive place in the Maginot’s ecosystem: it is dangerous not only because it can attack a person, but because it can eat through the materials intended to keep specimens contained.
In episode 6, a Fly emerges from a cocoon inside the secure laboratory and attacks Tootles. Its secretion severely damages his face and disables him. Multiple Flies then feed on the synthetic material in his body. Other individuals corrode a security panel, demonstrating that their threat extends to infrastructure, doors, electronics housings, and other metal-based barriers.
The species also constructs or occupies a nesting cocoon. The series does not provide a numbered designation or formal binomial name for it, so “the Fly” remains the most accurate practical label. Its biological specialty is clear even if its origins and full life cycle are not.
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The Xenomorph: the familiar Alien organism
The Xenomorph remains the most recognizable and conventionally lethal species aboard the USCSS Maginot. Season 1 shows eggs, facehuggers, a chestburster, and an adult drone. Nothing in the season establishes a new official subspecies or variant designation for this Xenomorph.
Its life cycle follows the familiar parasitic pattern: an egg produces a facehugger; the facehugger implants an embryo into a host; the resulting chestburster emerges and develops into an adult. The mature organism has the franchise’s characteristic biomechanical exoskeleton, inner jaw, tail, and corrosive blood.
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The Xenomorph is one of the five extraterrestrial species collected by Weyland-Yutani and transported toward Earth. After the Maginot crashes in Prodigy City, it becomes the clearest survival-horror threat on the ship and later at Neverland. It kills humans and synthetic beings alike, representing the direct physical danger within a season also concerned with corporate ownership, artificial life, and control.
Season 1 confirms that eggs and a mature Xenomorph are present, that the species survives the crash, and that it is treated as a dangerous biological specimen. It does not fully explain how the eggs entered the Maginot’s cargo or resolve every question about how this particular specimen fits with later franchise continuity. It is safest to call it the Xenomorph shown in Alien: Earth, not to assign it an invented new species name.
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Are the facehugger and chestburster separate species?
No. They are life stages of the Xenomorph. The egg, facehugger, implanted embryo, chestburster, and adult drone belong to one parasitic life cycle. Counting each stage separately would make the Maginot’s cargo appear to contain more than five species, but the season’s core cargo count is five.
The same distinction applies to the creatures controlled or attacked by the specimens. The sheep, cat, Shmuel, Arthur, and other organisms are hosts or victims, not additional extraterrestrial species in the cargo roster. Possession changes what a host is doing; it does not turn the host into a sixth alien species.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Which species is the most dangerous?
There is no official ranking from the show, and “most dangerous” depends on the situation.
- Most immediately lethal in a conventional attack: the Xenomorph. It is built for pursuit, close-quarters killing, and survival against armed opponents.
- Most strategically manipulative: T. Ocellus. Its use of hosts, corpses, distractions, and other specimens suggests the strongest problem-solving ability shown so far.
- Most dangerous as an outbreak organism: Species 19. Its small size, blood-feeding behavior, ability to contaminate liquids, and escape in numbers make containment difficult.
- Best ambush predator: D. Plumbicare. It can blend into a ceiling or surrounding vegetation before closing around prey.
- Most specialized against synthetic life: the Fly. Its corrosive, mineral-based diet allows it to attack android bodies and the structures designed to contain it.
The comparison also explains why the five-species cargo is more dangerous as a system than as a collection of isolated monsters. The Xenomorph attacks bodies, the ticks spread through bodily fluids and confined spaces, the plant hides in the environment, the Fly compromises metal, and Species 64 can exploit both living and dead hosts. Each organism pressures a different part of a containment strategy.
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What season 1 still does not explain
Alien: Earth establishes the creatures’ behavior more clearly than their origins. Season 1 does not identify the home worlds of all five species, provide their evolutionary histories, or fully explain Weyland-Yutani’s research purpose for every specimen.
That leaves several popular interpretations unconfirmed. The season does not establish that the creatures were designed as specific weapons, that one species evolved from another, or that D. Plumbicare is identical to an organism from another franchise production. Those ideas may be useful speculation, but they should not be presented as established canon without an explicit episode reveal or official production statement.
The complete season-one roster
For season 1, the answer is five cargo species:
- Trypanohyncha Ocellus / Species 64: the eye-replacing parasite that can control living and dead bodies.
- Species 19: the blood-feeding tick-like organism responsible for a containment and exposure threat.
- D. Plumbicare: the plant-like ambush predator that captures prey in closing leaf structures.
- The Fly: the corrosive, metal-eating flying insect.
- The Xenomorph: the egg-laying parasitic organism familiar from the Alien franchise.
The show’s larger mystery is not simply which monster is strongest. It is why these particular invasive organisms were collected, how they were meant to be controlled, and what their presence on Earth means for the humans, synthetics, and hybrids caught between corporate ownership and biological survival.
Product note: the tabletop roleplaying book mentioned above is for broader Alien-universe creature play and lore; it does not officially document the Alien: Earth specimens.
Frequently Asked Questions
Are the facehugger and chestburster separate alien species?
No. The facehugger, chestburster, and adult drone are stages in the Xenomorph’s parasitic life cycle, not separate species. The season’s core cargo count remains five.
What is the Eye Midge in Alien: Earth?
Species 64 is the catalog designation for Trypanohyncha Ocellus, the small tentacled organism that removes a host’s eye and controls the body. Eye Midge, Eye Octopus, and eyeball creature are informal labels.
What are the ticks in Alien: Earth?
Species 19 is a tick-like extraterrestrial that feeds on blood, particularly oxygenated blood. It can enter liquids and spread an outbreak when containment fails.
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The Fly eats metals, alloys, and minerals. Its corrosive secretion softens metallic material, making the species especially dangerous to androids, hybrids, and containment infrastructure.
The Bottom Line
Bottom line: Alien: Earth season 1’s Maginot cargo contains five extraterrestrial species: the Xenomorph, Trypanohyncha Ocellus (Species 64), Species 19, D. Plumbicare, and the Fly. Their different attack methods—neural takeover, blood feeding, plant-based ambush, metal corrosion, and parasitic reproduction—make the cargo a varied containment disaster rather than a collection of Xenomorph variants.
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