Gno/t'wtt.1.] LAMELLICORNIA. 59 



the elytra; the gonus contains eight species, which are found in Europe, 

 Armenia, Silx-riii, Japan, and North America; five occur in Europe, of 

 which two are British ; one of these is a very conspicuous insect, and at 

 lirst sight resembles a Cetonia ; they are both rare and are very seldom 



now found in the country. 



I. Upper surface mostly black O. VAHIABILIS, L. 



II. Upper surface golden green, brilliant G. HOBILI^, L. 



O. variabilis, L. (octopunctafus, F. ; Trichius 8-punctatug, Gyll.). 

 Deep black, moderately shining ; head thickly and rugosely punctured, 

 eyes prominent, clypeus rather large, antennas and palpi brown ; thorax 

 much narrower than elytra, contracted in front and rounded at sides and 

 base, thickly and coarsely punctured, with an obsolete depressed central 

 line, anterior angles very blunt, posterior angles rounded, but often 

 marked by a small tooth ; scutellum almost semicircular ; elytra with 

 feeble striae, thickly and rugosely punctured, with several small whitish- 

 yellow spots, which are mostly ranged transversely and irregularly across 

 the middle or just behind middle ; abdomen with whitish spots at sides ; 

 pygidium finely rugose with whitish-yellow spots ; the latter, however, 

 are not apparent in the female ; breast more or less thickly pubescent, 

 more so in male than in female ; legs black, apex of tarsi sometimes 

 bright red. L. 16-20 mm. 



Male with the first four joints of the anterior tarsi thickly clothed 

 with a brush of yellow hairs at apex, the pygidium convex and not 

 furnished with tubercles at apex, and the intermediate tibue constricted 

 and curved at base; the elytra are raised at apex into a more distinct 

 blunt tubercular prominence than in female ; in the latter sex the tarsi 

 an- not furnished with brushes of yellow hairs, and the pygidium is 

 distinctly bituberculate ; in my single female specimen the claws and 

 apex of tarsi are bright red, but I do not know whether this is a sexual 

 difference. 



In the rotten wood of oaks, Ac.; occasionally in flowers; rare; Tooting and 

 Purlcy, Surrey ; rotten oaks, Windsor Forest ; in the latter locality it used to occur 

 annually in some numbers, and most of our specimens come from this district ; it has 

 not, however, occurred there for a long time past. Stephens also records it from 

 1'enge and Brixton. 



G. nobilia, L. (Trichina iinliHg, Gyll.). Very like the preceding in 

 shape, sculpture, and general appearance, but at once known by it.s 

 colour, which is brilliant golden green with the under-side coppery or 

 ictlcli.-h coppery ; there are two whitish spots on thorax, and the elytra 

 and abdomen, and also the pygidium in male are marked more or less 

 distinctly with whitish-yellow spots or patches, which are very Mnall 

 on the elytra; the thorax has tho margins broader behind than in 

 <;. larinlnlix, and the posterior angles more marked; the scutellum is 

 strongly transverse, and the spiracles of the last two aMouiinal Moments 

 are usually five; the sexual characters are much the same, except that the 



