You can't use a tek dino as the sacrificial host. You can have multiple host dinos impregnated at the same time while taming just get them close together on passive and feed them all the pheromone before the Rhyniognatha can impregnate one. Helps to net gun the Rhyniognatha while lowering it's hp

Trap the Rhiniognatha and use she multiple Times.Its OP!!!

The bigger the Dino and the more cravings done gets you most of the impregnated Dino’s states no matter the rhyniognatha level

Voidwyrm and sarco dont work for feeding the pheromone

Use the net gun then use a creature to get it to as low as you can without killing it then use a gun to get it to 10℅

Use large Dino’s like Giga and Carchar, give it all the cravings it asks for, you can get absurd levels, with a 180 Rhynio and super high level Carchars, you can get like levels above 300

To tame it you have to kill one to get Rhyniognatha pheromones and then get one to about 10% of it’s maximum HP and then use the pheromones on a creature which it will lay an egg inside

Pheromones can be put in fridge

Have found 1 on the island south side of redwood by the swamp

How to tame one of these critters:

1. Kill a male one, they will drop a rhyniognatha pheromone that you’ll need later on

2. Grab a creature trike sized and upwards, things like gigas, brontos and carchars work best for this (the bigger the creature, the better it’ll be)

3. Feed the pheromone to the creature you choose

4. Find a female, the higher the level the better of course, and lower its health to 10% like a reaper

5. The rhyniognatha will then impregnate the creature and use it as a host to birth the baby rhyniognatha

6. The host will give birth eventually however you can increase its stats by giving it food. The host will ask for cravings, these cravings will vary between things like brews (calien soup etc), eggs (giga etc) and gasoline for some reason

7. Enjoy your new rhyniognatha, it eats raw meat to keep alive

The only wild one I have found was in the island swamp, I have heard people saying they are on lost island also. To get them you need to kill one and take the special item it drops, then you need to find the one you want to tame and get it below 10% health like a reaper, then feed the special item to a sacrifice dino and eventually the bug will lay its eggs in it, make sure your Dino can eat the special item first as there seem to be some restrictions. you need to feed the Dino with the eggs something special every once in a while like a imprint and eventually it hatches and kills your Dino and you can claim the baby and raise it.

The Rhynio’s spawn code is:

summon Rhynio_character_bp_c

Hey Guys! The rhynio dossier has been released it’s taming method is pretty much the same! It also seems that they removed the level mechanics where you have to be higher or the same level as the female to receive the egg which is good for players that have never ascended before!

-TekReaper

If you are tired of sacrificing your tames for one of these, just use a mod called MSKYO it takes creatures that you normally have to passive tame or steal eggs for (wyverns rock drakes giant mosquitoes pryomanes etc) and allows you to just knock them out and give them their preferred taming food like meat berries or kibble (the creator of this mod is Trixt3r) I love this mod, this is how we got our first pyromane. I highly recommend this mod if you don’t want to go through all the work of those really difficult passive tames.

- Island Girl

Ok so I learned you can knock it down using tranq arrows, I think it's faster to kill it this way.

SUPER EASY TAME STRATEGY,

Use a spino to kill a male for the pheromone, count how many hits it took to kill the male, find a female, hit the female a few less times than the male, or until she is pretty bloody, then eat pheremone and there you go, also constantly consume food while she is attacking to help keep your health high.

Some people use all their good dinos just full it upgrade a dodo and just feed it the pheromone it can eat it.

You need to kill a male to get a pheromone feed to a large tame (gigs Rex) let it lay its larvae satisfy the pregnant Dino’s cravings eventually the baby will bust out killing the tame and you can claim and raise the baby to adulthood hope this helps

For Ark ultimate mobile players:

I used bronto level 256 - health - 46000

I got it impregnated with Rhyniognatha lvl 125

I completed 5 cravings ( Max )

I got rhyniognatha lvl 174.

But still don't understand how it works 😕

For some reason, no one mentions to make sure your dino is fed so that they don't starve before gestation period is over or you lose your baby rhynio. If you don't want to waste your time, make sure they are safe, fed, and watched carefully or your efforts will be in vain.