Lamia

The Lamia (ラミア族, Ramia-zoku) are a reptilian liminal race with the upper body of a human and the lower body of a snake. A mono-gendered (female) demi-human race, Lamias are predatory carnivores that form tribal villages on the outskirts of desert oasis, their serpentine tails are powerful enough to rend steel.

Culture
Believed to be deadly towards humans, Lamia are reputed to lure men back to their lairs and kill them after they've had their way with them. However, this is only partially true, as due to being a female-only race, Lamias would lure men to their villages and hold them as 'Communal Husbands'. If the male is resistant, Lamia will use alchemical compounds such as incense to draw out their lust and force themselves upon them. Usually the entire village would get involved, resulting in mass orgies that are said to sometimes result in the male dying from sexual exhaustion. Following the initial orgy, the male has a choice to voluntarily stay or leave.

Since the Cultural Exchange Between Species Bill, government agencies have put a stop to the Lamia practice of kidnapping and keeping 'communal husbands' against their will. In an attempt to compensate for this, Lamia villages have taken to sending "representatives" via the exchange program for the purpose of acquiring a communal husband for the village.

According to Miia's mother, lamia are very skilled poison users and chemists which she backs when she reveals the tea she brought had been spiked with weak neurotoxin. She later used a special incense that acted as an aphrodisiac, though it proved ineffective.

Physiological Attributes

 * Lamia are Poikilotherms; organisms that do not have a stable internal temperature and must rely on external sources to maintain a healthy body temperature. As such they are extremely vulnerable to cold temperatures and will either fall into hibernation and/or die if left exposed to low temperatures for too long.
 * The tip of a lamia's tail is an extremely sensitive erogenous zone.
 * Lamias posses a sensory organ similar to pitvipers that allows them to see heat signatures. With it, they can follow the heat signature of their prey even in the dark.
 * As carnivores, lamia have twenty times less the number of taste buds as omnivores (e.g. humans), while omnivores generally have half as many taste buds as herbivores (e.g. Centaurs)
 * Lamia's will shed their skin once in awhile just like regular snakes. Interestingly Lamias find being seen skin shedding to be more embarrassing than being seen naked.
 * Lamias have a special food preference for eggs.
 * Given that they are part snake they can also go without food for several days.

Echidna
Echidnas (エキドナ, Ekidona) are a subspecies of Lamia. Because more of their bodies are covered by scales compared to lamias, echidnas are more closely related to Lizardfolk. Their name means "viper women", and true to their name, they possess poisonous fangs inside their mouths. Their venom is a type of haemorrhagin and must be treated with caution. Their snake-like lower bodies are covered in a unique pattern reminiscent of vipers.

Medusa
Medusas (メデューサ, Medyūsa) are a subspecies of Lamia. Also known as Gorgons (ゴーゴン, Gōgon), Medusas are a subspecies of lamia with snakes for hair. In mythology, their gaze are said to turn creatures into stone, but in thankful reality, they possess no such ability. However, their gaze seems to be very keen, and their glare makes living creatures unable to move, as though they've been turned to stone. In unfortunate reality, they have poor eyesight and only appear to be glaring despite their lack of ill will, as they are instead only trying to see more clearly. Because their hair is made of snakes they are tragically troubled by the fact that they can't change their hairstyle.

Melusine
Melusines (メリュジーヌ, Meryujīnu) are a lamia subspecies with dragon wings on their backs. Due to this, they share characteristics with Dragonewts. In contrast to other lamia subspecies, they are more similar to sea snakes than terrestrial snakes and prefer to live by the shore. Sadly, their wings aren't strong enough to lift their long lower bodies, making said wings being more vestigial in nature.

Members

 * Miia
 * Miia's Mother

Trivia

 * The Lamia race consists of only females, in order to breed they must mate with human men.
 * Lamia mating can take around 6-10 hours on average. Due to this, a Lamia's partner seldom has the stamina to keep up with them and may die from exhaustion. If a man lingers or hesitates once sexual intercourse is finished, he is considered engaged to that Lamia.
 * The first of The Eight Brothers is dating a Lamia.
 * Lamia are inspired by Greek mythology. Lamia was the queen of Libya who was also a mistress of Zeus. This earned her the ire of Hera, Zeus' wife, who killed Lamia's children and then transformed her into a child-eating demon. Her name is supposedly derived from the Greek word for "gullet", laimos, which is a reference to her habit of eating children. The depiction of Lamia with a snake's tail is from a 1819 poem by English Poet John Keats and has become the common depiction of Lamia in other forms of media/\
 * It's revealed in Chapter 27 that Lamia tribes used to kidnap and trick human men into becoming communal husbands for the entire tribe. Miia was entered into the Exchange Program in order to find a husband for her tribe, until she fell for Kurusu and wanted him for herself.
 * It's also revealed that other tribes have sent their daughters for the same reason.
 * A Lamia's undergarments consist of a silicon decorative triangle that they place over their genitals to serve in the aspect as panties.