188 



Haliplus fulvus, F. Marton (L. Rudd). 



Haliplus variegatus, Stm. Marton, rare (G. T. Rudd). 



Haliplus rufficollis, De G. Redcar (W. C. Hey) ; Arncliffe 

 Wood, Glaisdale. 



Hyphydrus ovatus, L. Marton. Common, the males in 

 the proportion of five to one (L. Rudd). 



Ccelambus insequalis, F. Maron, scarce (L. Rudd) ; Coatham 

 Marshes. 



Ccelambus impressopunctatus, Schal. (picipes, F.) Coatham 

 Marshes. A single specimen March, 1887 (W. C. Hey). 



Deronectus latus, Steph. Marton Lodge (L. Rudd). 



Deronectus depressus, F. Marton, common (L. Rudd) ; 

 Coatham Marshes (W. C. Hey). 



Hydroporus pictus, F. Coatham Marshes (W. ( '. Hey) ; 

 Marton (L. Rudd). 



Hydroporus lineatus, L. Marton Lodge (L. Rudd). 



Hydroporus incognitus, Sharp., H. memnonius, Nic ; and 

 H. nigrita, F. Common in Arncliffe Wood, Glaisdale. 



Agabus nebulosus, Forst. Marton, not common (L. Rudd). 



Agabus melanarius, Aube (tarsatus, Zett). In a pool in 

 Arncliffe Wood, Glaisdale. One specimen in September, 

 1894. A very rare insect. 



Agabus bipustulatus, L. Coatham Marshes (W. C. Hey) ; 

 yrnchffe Wood, Glaisdale. 



Copelatus agilis, F. Marton, 1828, in pools on the hills 

 near Marton Lodge, but very scarce (L. Rudd). 



Dytiscus punctulatus, F. Marton, 1829 ; not of very 

 frequent occurrence (L. Rudd). 



Acilius sulcatus, L. Coatham Marshes (W. C. Hey). 



Gyrinus minutus, F. Marton (L. Rudd). 



Gyrinus urinator, 111. Marton (G. T. Rudd). 



Helophorus aquaticus, L., and H. brevipalpis, Bedel. At 

 Redcar (W. C. Hey). 



