62 CATALOGUE OF THE INSECTS OF 
thickly punctulate, anterior, scarcely impressed and slightly 
punctulate, disk sub-convex, smooth, or variously occupied with 
punctures; elytra narrow, convex, attenuated behind, black or 
fuscous, with the sides, shoulders and apex more or less rufescent, 
conspicuously punctured, the punctures placed slightly apart; 
body black beneath, rather strongly punctate; legs ferruginous; 
antenne testaceous with the tips dusky. 
One specimen is entirely black, except the front of the head 
which is red; others have the thorax red beneath as well as 
above.—J. H. 
11. H. trvzatvs, Fab. 
Boisd. et Lacord. Faun. Ent. Paris., i., 336, 19.—Heer. Fn. 
Col. Helv., i., 158, 22.—Dytiscus lineatus, Fab. Syst. EL, 
i, 372 %—Hydroporus ovalis, Steph. Illust. Mand., ii., 
58.—Dytiscus ovalis, Marsh., 1., 425.—Dytiscus ovatus, 
Fab. Syst. Hl, 1., 269. 
Prestwick Car, Marsden, and Boldon Flats. April—Sept. 
12. H. puprscens, Cyl. 
Schaum, Zoologist, 1892.—H. melanocephalus, Marsh., Steph. 
Tllust. Mand., ii., 60.—Heer. Fn. Col. Helv., i., 157, 19. 
—H. planus, Marsh., Steph. Illust. Mand., 11., 60.—H. 
caliginosus, Steph. Manual, No. 536. 
Stagnant waters, common. 
13. H. memnonivs, Vicol. 
Steph. Manual, No. 537.—H. jugularis, Babington, in Lou- 
don’s Mag. Nat. His., v., 328.—Steph. Ilust. Mand., v., 
392, 
Newcastle and near Heaton, in July.—Z. J. B. 
This also includes the H. subelongatus, H. marginatus, and 
H. deplanatus, of Stephens.— Vide Schaum, Zoologist, 1892. 
14. H. eryrHrocePHaLus, Linn. 
Steph. Illust. Mand., ii., 60. 
Common. 
15. H. xantuopus, Steph. 
Steph. Manual, No. 541. H. fusculus, Leach, Hdinb. Ln- 
cyclop., ix., 84, 51, 1.—H, flavipes, Steph. Illust. Mand., 
i., 61.—H. planus, Steph. Manual, No. 540. 
Newcastle—Z’. J. B. 
