nilritf.g.'] SERniCORKFA. 1 1 1 



II. Antennao obtusely serrate from the fourth joint in- 

 elusive. 



i. Thorn x with the posterior angles ca'rinate; size 

 larger. 



1. Antriin:r with the third joint one and n half times 

 as long as second ; pubescence thick and silky and 

 arranged in patches, giving the upper surface a 

 strongly variegated appearance ; upper surface not 



nii'tallic C. HOLOSERICEUS, F. 



2. Antenna* with the third joint double as long as 

 second ; upper surface more or less distinctly 



metallic. 



A. Upper surface strongly metallic (usually bright 



spneous or blue), without pubescence . . . C. /ENECS, L. 



13. Upper surface not strongly metallic, with dis- 

 tinct pubescence, which is, however, not arranged 

 in patches. 



a. Thorax with obsolete central furrow ; pubes- 

 cence fine and close, yellowish ; legs red ; size 



smaller C. METALLICUS, Payk. 



b. Thorax with central furrow more or less dis- 

 tinct, at all events at b.ise ; pubescence coarse 

 and rather scanty, whitish ; legs, as a rule, 



black ; size larger C. IMI-RESSCS, F. 



ii. Thorax with the posterior angles not carinate, upper 

 surface very finely punctured ; size small ; elytra 

 black with a yellowish spot at shoulder or entirely 

 reddish-yellow C. BIPUSTCLATUS, L. 



C. castaneus, L. (Calotirus castanetts, Thorns.). Head and thorax 

 black, clothed with thick villose yellow pubescence ; elytra of a bright 

 yellowish-castaneous colour with the apex black ; antennas, legs, and 

 under-side black ; head very thickly and rather coarsely punctured, eyes 

 moderately prominent, thorax varying in the sexes, thickly and finely 

 punctured, longer than broad, with posterior angles prominent and 

 divaricate, not carinate ; scutellum large, dark ; elytra long oval, with 

 sides gently rounded, with fine punctured striae, interstices finely punc- 

 tun-d and pubescent; under-side clothed with fine and sparing grey is! i 

 pubescence. L. 8-9 mm. 



Male narrower than female, with the thorax narrower and more parallel- 

 M 'I'-il, and the antennae longer and strongly pectinate. 



Female broader and more convex, with the thorax more ample and 

 more rounded at sides, and the antennae shorter and strongly serrate. 



By sweeping, Ac. ; very rare ; Moushold Heath, Norwich, and Isle of Wight 

 (Stephens); Moumouth, under stones (Kuper) ; Northumberland and Durham 

 district, Sea-coast near Hawthorne Dene, Rev. R. Kirwood (Bold). 



C. pectinicornia, L. (Ctenicents pectinicornitt, Latr.). A large 

 and conspicuous species, of an aeneous-green colour, shining ; head very 

 st p.ngly punctured, antennae black ; thorax longer than broad, coarsely 

 and strongly punctured, but less closely than in the succeeding species, 

 central furrow broad and distinct, post-rior angles much projecting, 



