Bonelli having established the genus Pterostichus, which 
has been adopted by Latreille, Dejean, and Sturm, we have 
yielded to such high authority, although according to our no- 
tions it is only a division of Omaseus. It is the more remark- 
able that the trophi and antennae should not afford important 
distinctive characters, because the true Pterostichi from being 
so greatly depressed, present a peculiarity of habit that ena- 
bles us at once to distinguish them ; their antennae are rather 
short, their heads often elongated, the thorax narrowed and 
truncated behind with the angles acute. 
The species dissected to illustrate our genus appears to be 
the only one hitherto recorded as an inhabitant of Britain : it 
is therefore with unusual satisfaction that we present our read- 
ers with the following table of those in the Cabinet of the 
British Museum, together with their localities, which we are 
enabled to give through the kind attention of Mr. Samouelle. 
1. P. macer Marsh . 466. 92.— picimanus Duft .■ — March and 
April, under the bark of Willow trees, Hackney 
Marshes : roots of trees, Greenwich Park : middle of 
July under clods of earth on the banks of the Humber. 
2. brunnipes Sam. MSS. — 29th May in a marsh near Stone- 
house, Devon ; also under stones near a running stream 
between Crabtree and Ridgway, May 30th ; and a third 
specimen, July 1st, under a stone near the river between 
Brickleigh and Shaw-bridge. — Leach’s MSS. 
3. elongatus Sam. MSS. Nob. — Devonshire. Dr. Leach. 
4. fasciato-punctatus Fab. Panz. 67. 9.- — Devonshire. Dr. 
Leach. 
5. Selmanni? Duft. — Sturm tab. 106. b.— Under a stone 
near the river Plym, June 2nd. Dr. Leach. 
6. oblongo-punctatus Fab . — Oliv. — Panz . 73. 2. — In a salt 
marsh near the Lary. Dr. Leach, May 26th. For a 
specimen of this insect w'e are indebted to the Rev. 
F. W. Hope. 
7. parum-punctatus Dej. — 8-punctatus ? Fab. Marsh. — In 
our table of the genus Agonum we followed Schbnherr 
and Gyllenhal in giving Marsham’s Carabus 8-puncta- 
tus as a synonym to Fabricius’s C. parum-punctatus but 
Marsham’s reference being to Fabricius’s Supplement, 
of which those two authors take no notice, it is possi- 
ble that they may be mistaken ; neither are we certain 
that it is the same as Dejean’s insect. 
The plant , Ranunculus parvulus Linn., was communicated by 
John Lindley, Esq. 
