Cryptohypnus. | SERRICORNIA. 87 
head thickly punctured, antennee comparatively short, dark with base 
reddish-testaceous, first joint large, second and third joints nearly equal; 
thorax distinctly longer than broad, gradually narrowed in front, 
broadest behind middle, strongly rugose, with a narrow and somewhat 
raised smooth central line ; carine of posterior angles extending for 
about one-third the length of the thorax ; elytra with sides slightly 
rounded and gradually narrowed to apex, very strongly striated, inter- 
stices thickly and distinctly punctured, convex, almost carinate towards 
base ; legs yellow, femora fuscous in middle. L. 33-5 mm. 
On the banks of streams; rare; banks of the Nith, Thornhill (Sharp), and at 
Dumfries (Lennon), 
Cc. pulchellus, L. (Negastirius pulchellus, Thoms.). Strongly 
convex, black with irregular yellow markings on elytra, thickly and 
rugosely punctured, dull, with very fine and short pubescence which 
gives the upper surface a somewhat leaden appearance; head very 
thickly punctured, antenne black with base yellowish, second and 
third joints of about equal length; thorax longer than broad, strongly 
convex, rugosely punctured, with the lateral keels extending beyond 
middle, and with traces of a feeble smooth raised line ; elytra half as 
long again as thorax with strong striz, interstices almost carinate as 
far as middle ; legs entirely yellow ; the yellow markings on the elytra 
are very irregular: in the type form there is a trilobed spot at base, a 
round spot behind middle, and some smaller spots at apex. L, 
25-4 mm. 
On the banks of rivers and streams; very rare; on the banks of the Findhorn, 
Morayshire (Hislop) ; the species, according to Rye, is spread over the whole of 
Europe, on river banks, living under stones and at the roots of plants, especially of 
Triticum repens, on which, according to Lacordaire, its larva feeds ; it is also recorded 
from America. 
C. quadripustulatus, F. (Negastrius 4-pustulatus, Thoms.). A 
very small and proportionately broad species; black, with the posterior 
angles of thorax and two large and well-marked spots on each elytron 
yellow, upper surface finely pubescent ; head rather thickly punctured, 
antenna as long as head and thorax, lighter or darker brown with 
lighter base; thorax as long as broad, strongly convex, depressed to- 
wards base, strongly rounded at sides, finely punctured ; elytra elongate 
oval, more than twice as long as thorax, with rather deep and not very 
plainly punctured striz, interstices thickly and finely punctured 3; pro- 
sternal process only covering base of mouth parts; legs yellow. L. 
3 mm. 
In damp grassy places; by sweeping, &c.; local; London district, searce but 
rather widely distributed, Lee, Dulwich, Penge, Forest Hill, Battersea Fields, 
Clapham, Putney, Cowley, &c. ; Wieken and Burwell Fens, Cambridge ; Barnstaple ; 
Bristol ; Tewkesbury ; Bewdley; Knowle; Salford Priors; Chureh Stretton; Rep- 
ton ; Lancaster ; Northumberland district, Banks of Till, Whitley, and Hetton 
Hall, Belford ; Ireland, near Belfast. 
