The large basicoxite in case of Neuroptera and Lepidoptera is called as

The large basicoxite in the case of Neuroptera and Lepidoptera is called Meron.
Posterior to the point of articulation, the basicoxite is called the meron and in insects such as adult Neuroptera and Lepidoptera, it can be quite large.
In higher Diptera, the meron is detached from the coxa and forms a plate in the mesothoracic pleuron.