NORTHUMBERLAND AND DURHAM. 15 



28. B. gilvipes, Sturm., 1. c. II., 2G1. 



29. B. pusillum, GylL, 1. c. 



30. B. doris, Panz., 1. c. 



Taken on the Till, by Mr. J. Hardy. 



31. B. quadriguttatwn, Fab., 1. c. 

 Local, but not rare. 



32. B. bipunctatum, Linn., 1. c. 



33. B. punctulatum, Drap., 1. c. 



34. B. pallidipenne, 111., 1. e. V., 53. 

 Blyth Sands, sparingly. 



35. B. paludosum, Panz., 1. c. II., 260. 



TACHYPUS, Meg. 



1. T. fiavipes, Linn., 1. c. 



2. T. pallipes, Duft., 1. c. 



Banks of the Till, and not rare on those of the Irthing, in 

 June. 



HYDRADEPHAGA. 



DYTISCID^. 



HALIPLIDES. 



HALIPLUS, Lnt. 



1. H. elevatus, Panz., 1. c. I., 59. 



2. H.fulvus, Fab., 1. c. 



3. H.flavicollis, Sturm, Deutsch. Faun. VIII., 150. 

 In ponds, &c. Not uncommon. 



4. H. vartegatus, Sturm., Trans. CI. III., 88. 

 Very rare. 



5. H. affinis, Steph. ; H. cinereus, 1. c. I., CO. 

 Ouseburn, Heaton, Gosforth, &c. Not common. 



G. H. ruficoUis, Dej., 1. c. 



7. H.flimatilis, Aube., 1. c. III., 89. 



