William Elford Leach

“ The thorax is hexagonal, the anterior part is much attenuated, and the hinder margin is straight. The head is narrower than the broadest part of the thorax; the eyes are oblong, and converge a little behind; the hinder legs are much ciliated, and the claws are so minute as to be discovered with great difficulty; the tips of the elytra are notched. ”

“ Thorax perfuscus lineolis transversis numerosissimis flavicantibus.
Spec. 3. Corixa stagnalis.
C. fusca, thorace lineolis transversis numerosissimis flavicantibus, elytris fuscis flavido irroratis.
Habitat in aquis stagnantibus putridis vulgatissime.
Elytra fusca flavido-irrorata; margine anteriore flavido; margine postico basin versus flavido-lineato. Dorsum fusco-nigricans.
This species is about half the size of C. striata.
Spec. 4. Corixa fossarum.
C. fusca, thorace lineolis sex transversis flavidis, elytris fuscis flavido-irroratis. ”

“ Besides the characters given in the above table, the following will be useful in order to enable the young entomologist to distinguish this genus from Plea, from which it has not been separated by any entomologist [2] . ”