OF THE NORFOLK BROADS. 
89 
Genus XVII. Oxus. 
54. O. strigatus, Mull. Ormcsby. One species not 
identified. 
Genus XVIII. Piona. 
There is a question if this genus should be known as Piona, 
nearly all the writers now calling it Curvipes, but as I am 
using Piersig’s nomenclature I will use the name. 
55. P. ambigua, Pier. Catfield, Sutton. 
56. P. aduncopalpis, Pier. Common in the Broads in 1904. 
Catfield. 
57. P. controversiosa, Pier. Common in 1904. Catfield, 
Horning, Ingham. First record for Britain. 
58. P. carneus, Koch. Potter Heigham, Stalham, Salhouse, 
Wroxham. 
59. P. conglobata, Koch. Burgh St. Margaret. 
60. P. fuscata, Herm. Burgh St. Margaret, Catfield, 
Sutton. 
61. P. longipalpis, Kren. Potter Heigham, Catfield. 
62. P. nodata, Mull. Potter Heigham. 
63. P. obturrans, Pier. Burgh St. Margaret, Catfield. 
64. P. rufa, Koch. Sutton, Potter Heigham. 
65. P. rotunda, Kram. Sutton. 
66. P. uncata, Koen. Burgh St. Margaret, Catfield, 
Horning. 
Genus XIX. Pionacercus. 
67. P. VATRAX, Bar. and Mon. Potter Heigham. 
Genus XX. Pionopsis. 
68. P. lutescens, Herm. Potter Heigham, Sutton, Catfield. 
Genus XXI. Sperchon. 
69. S. squamosus, Kram. Ranworth. 
Genus XXII. Thyas. 
70. T. longirostris, Pier. Ranworth, Catfield, Hickling. 
71. T. venusta, Koch. Wroxham, Salhouse. 
One species not identified. 4 
