] SEBRICOBNIA. 87 



head thickly punctured, antennae 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, 

 br.-atlest behind middle, strongly rugose, with a narrow and somewhat 

 i smooth central line; cariuae 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. 3^-5 mm. 



On the banks of streams; rare; banks of the Nith, Tuoruhill (Sharp), and at 

 Dumfries (Lenuon). 



C. pulchellus, L. (Negastriu* pulchcllus, Thorns.). Strongly 

 convex, black with irregular yellow markings on elytra, thickly and 

 rugosely punctured, dull, with very tine and short pubescence which 

 gives the upper surface a somewhat leaden appearance; head very 

 thickly punctured, antennae black with base yellowish, second and 

 thinl joints of about equal length; thorax longer than broad, strongly 

 c< 'iivcx, 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 striae, 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. 

 2-4 mm. 



On the banks of rivers and streams ; very rare ; on the banks of the Findhorn, 

 Morajsbire (Hislop) ; the species, according to Rye, is spread over the whole of 

 Europe, on river bunks, living under stones and at the roots of plants, especially of 

 Triticvm repent, on which, according to Lacordairc, its larva feeds ; it is also recorded 

 from America. 



C. quadrlpustulatus, F. (Neyastrius 4-pusiuJatus, Thorns.). 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, 

 antennae as long as head and thorax, lighter or darker brown with 

 lighter base; thorax as long as broad, strongly convex, depressed t>- 

 \\nnl.s 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 striae, interstices thickly and finely punctured ; pro- 

 sternal process only covering base of mouth parts ; legs yellow. L. 

 3 mm. 



In damp grassy places; by sweeping, &o.; local; London district, scarce but 

 rather widely distributed, Lee, Dulwich, Penge, Forest Hill, Hattereea Fields, 

 Clapham, Putney, Cowley, Ac. ; Wieken and Hurwell Fens, Cambridge ; lUrnataple ; 

 Bristol; Tewkesbury ; Hewdley ; Kuowle; Salford Priors; Chiirrh Stretton ; Kt-|>- 

 t.n ; Lancaster; NOrtliuinlH rland district, Bunks of Till, Whitley, uud Hctlon 

 ll.ill, Hclliiul; Irrl.tlid. mar IMlast. 



