130 



Hydroporous septentrionalis, Gyll., and H. davisi, Curt. 

 Saltburn Wood, in the Stream (August, 1894). 



Hydro porus dorsalis, F. — Common at Middlesbrough, in a 

 pond. 



Agabus nebulosus, Forst., and A. Sturmi. Gyll. — Common at 

 Saltburn ; also at Coatham Marsh. (W. C. Hey). 



Platambus maculatus, L. — Saltburn, in the stream. 



Iiybius fuliginosus, F., I. ater. De G., and I. fenestratus, 

 F. — Common at Saltburn. 



Colymbetes fuscus, L. Saltburn in a pond ; Coatham. 

 (W. C. Hey). 



Dytiscus punctulatus, F. — At Saltburn, but not common. 



Gyrinus natator, Scop. — Common at Saltburn; Redcar. 

 (W. C. Hey). 



Hydrobius fuscipes, L. — Common in Cleveland. 



Anacaena globulus, Payk., and A. limbata, F. — Common at 

 Saltburn. 



Laccobius sinuatus, Mots., (nigriceps, Thorns.,) and L. 

 alutaceus, Thomas. — Both species occur at Saltburn, the first 

 being common. 



Limnebius truncatellus, Th. — Common at Saltburn. 



Helophorus quaticus, L., seneipennis, Thorns., and H. 

 brevipalpis, Bed. — Common at Saltburn. 



Cercyon haemorrhoidalis, F., C. flavipes, F., C. lateralis, 

 Marsh, C melanocephalus. L., and C analis. Payk. — Common 

 at Saltburn. 



Aleochara lanuginosa, Grav. — Common at Saltburn. 



Chilopora longit arsis, Er. — Common at Saltburn. 



Homalota gregaria, Er. and H. analis, Grav. — Common at 

 Saltburn. 



Homalota elegantula, Bris. — Saltburn Wood (May, 1905). 



Gnypeta labilis. Er. — Common at Saltburn, and on the 

 margin of the Reservoir at Lockwood Beck. 



