1 shall endeavour to correct the list given in my 66 Guide/ 9 
and describe two new species. 
1. 12-pustulatus F. Don.v. 14. pi. 496. — 1 2-pun c tatu s Steph. 
2. depressus F. — elegans Mars. Panz. 24. 5. 
3. fra ter Sp. — depressus Duft. — halensis F. — areolatus Dej. 
4. griseato-striatus DeGeer . Gyll. 1. 523. 7. 
5. alpinus? Gyll. 1.524. & 4. 386. — rivalis Leach's MSS. ; but 
I think Gyllenhal’s H. rivalis is an Hygrotus. 
6. Davisii Curt. Brit. Ent . pi. 343. 
This handsome insect comes nearest to H. borealis Gyl. ,* but it appears 
to be twice as large. It was taken in a mill-stream at Hebden Bridge in the 
spring, and presented to me by A. H. Davis, Esq. F.L.S., to whom I have 
the pleasure of dedicating it. 
7. nigrolineatus Scho. 2. 33. pi. 4 .f. 2. Gyll. 3. 688. 
8. 9-lineatus Rudd's MSS. Ste. 
9. lineatus Mars. mas. — consobrinus Kunz.fem. 
10. picipes Kunz. — punctntus Marsh. 426. 36. 
11. alternans Kunz. — lineellus Gyl. 1. 529. 
12. latus Curtis's Guide , No. 11. 
The length of No. 6. ovate, triangular at the apex, rather convex, mi- 
nutely granulated and clothed with excessively short yellowish pubescence ; 
irregularly and sparingly but coarsely punctured ; dull piceous, head casta- 
neous, obscurely piceous across the middle,* eyes black : thorax short trans- 
verse with a fovea in the centre, the sides slightly margined at the posterior 
angles which are rounded and reflexed ; posterior margin angulated in the 
centre : elytra with a large humeral castaneous spot : trophi antennas and 
legs castaneous. I possessed a single specimen for many years ; Mr. Dale 
took two in his pond at Glanville’s Wootton ; Rev. G. T. Rudd, Yorkshire 
and Mr. Gibson, Hebden Bridge. 
13. opatrinus Dej. P Ste. 14. proximus Wilk. var. ? 
15. 6-pustulatus F. — lituratus Panz. 14. 4. 
16. Cambriensis Davis's MSS. 
Rather longer and narrower than No. 15, convex, dull black, rather 
thickly and minutely punctured and clothed with obscure depressed hairs : 
2 basal joints of antennae ochreous, several of the following ferruginous at 
the base : head ferruginous black at the base with 2 large oblique black 
marks before the eyes almost meeting in the middle : thorax short and 
broad, the sides ochreous vanishing towards the posterior angles : elytra 
with an ochreous lateral line towards the apex hooked internally at both 
ends : legs ferruginous, 
17. umbrosus Gyl. 
18. rufifrons Duf. 
19. marginatus Kunz.— Lap- 
ponum Gyl. 
20. deplanatus Gyl. 
21. ferrugineus Rudd. Ste. 
22. Scalesianus Ste. 
23. unistriatus Rl. — parvulus 
Panz. 99. 2. 
24. geminusi^. trifidusP£.26.2. 
25. minimus Scop. 
26. granularis L. 
27. 
28. 
29. 
30. 
31. 
32. 
33. 
34. 
ovalis Mar. 
NWita Fab . 
O 
trivialis Spence. 
planus Mar. minutus Ste. ? 
melanocephalus Mar. 
erythrocephalus Linn . 
flavipes F. humeralis Mar. 
holosericeus Mar. — ater 
Fors. ? 
35. pubescens Gyl. 
36. fuscatus K. — planus Gyl?. 
37. piceus K. — planus Gyl. /3? 
The plant is Utricular ia minor (Less-hooded Milfoil), dis- 
covered near Heron Court by the Hon. C. A. Harris. 
