18 Dr. Leach's Classification of the Notonectides. 



Long. Corp. i unc. 



Habitat in aquis stagnantibus vulgatissime. 



All authors have considered this species as Notonecta striata of 

 Linne, although it will not agree with his character. It is figured 

 by GeofFroy and Panzer, and is of the former author the species 

 serving as the type of the genus Corixa. 



Spec. 8. Corixa affinis. 

 C. flavida, thorace lineolis transversis numerosissimis nigris, ely- 



tris nigro-irroratis : dorso pernigro ; lateribus postice dentato- 



flavis. 

 Habitat in stagnis prope Plymouth hand infrequens. 

 C. Geoffroyi duplo minor. 



IV. Some 



