66 CATALOGUE OF THE INSECTS OF 
accounts for its being found during the day in situations that do 
not correspond with its actual habits. On the sea-coast it occurs 
frequently upon the sands, or concealed beneath stones. 
14. C. ruLicinosus, Fab. 
Steph. Illust., Mand., 11., 67.—Dytiscus fuliginosus, Mab. 
Syst. El, i., 263. 
Common. 
15. C. revestratus, (ab. 
Steph. Illust., Mand., 11., 82.—Dytiscus fenestratus, Mab. 
Syst. H1., i., 264.. 
“Twizell."—P. J. Selby, Esq. 
16. C. aver, De Geer. 
Steph. Illust., Mand., 1i., 82. 
“ Durham.”—Ornsby’s Durham. Common at Marsden and 
Boldon Flats in July. 
17. C. opscurus, Marsh. 
Steph. Illust., Mand., it., 82.—Dytiscus obscurus, Marsh, 1., 
414. 
Rare ; Boldon Flats in July.—Z. J. B. 
This was found in a pool unaccompanied by the preceding 
species. 
60. Acrutus, Leach. 
1. A. sutcatus, Linn. 
Steph. Illust., Mand., ii., 93. 
Stagnant waters, common. 
61. Dyricus, Geoffroy. 
1. D. marernaris, Linn. 
Steph. Illust., Mand., ii., 89. 
Common in stagnant pools. 
2. D. punctuLatus, Fab. 
Pab. Syst. El., 1., 259.—Steph. Illust., Mand., ii., 90. 
Common in pools. 
Faminy 2. GYRINIDA, Leach. 
62. GyRinus, Geof. 
1. G. marinus, Gyll. 
Steph. LIllust., Mand., 1., 96.—G. eneus, Leach. Ib. Ll. c. 95: 
Budle Bay.—G@. Wales, sq. Prestwick Car, Ouseburn, Mars- 
den, and Whitburn. March—August. 
