86 HETEROMERA,. [Orchesia. 
Brazil, Chili, &c.; in its narrow sense it only includes two or three of 
the European specics, which may be known by having the eyes very 
large and almost meeting behind on vertex, the rather stout club of the 
antenne, the strongly enlarged securiform last joint of the maxiilary 
palpi, and the more distinct spurs of the anterior tibi. 
The larva and pupa of O. micans are described and figured by Schiddte (xi. np. 582, 
587, tub. xviii. 15, 26) and Westwood (Classification, i. p. 308, fig. 35, 23, 25); the 
larva is almost linear, about six times as long as broad, with only the head, dorsal 
segments of thorax and the legs corneous; the general colour is whitish, with the head 
pale yellow, the frontal margin and mandibles being ferruginous ; the head is rath r 
large, but much narrower than the prothorax, and the antenne are very minute ; the 
last segment is narrower than the preceding, without margins, almo-t semicircular, 
and quite simple at apex; the pupa is remarkable for having the prothoracie shield 
dilated on each side, and covering the head, and furnished with strong “ styli motorii,” 
each terminated by a fine seta, and also fur the size of the rudimentary elytra, which 
entirely cover the hind legs; the apex is terminated by a bunch of rather sharp 
more or less curved protuberances. 
As remarked by Professor Westwood, the insect, in its early stages, 
differs considerably from the typical Melandryidx, and approaches 
Mordella, which latter genus it resembles in its shape and the curious 
skipping shrimp-like motions of the imago; in other points, however, 
it presents closer affinities with the Melandryide, although it may 
perhaps be regarded as a genus somewhat intermediate. 
©. micans, Panz. (picea, Herbst.). Elongate, not very shining, 
thickly clothed with short shining silky yellowish pubescence, fuscous 
or pitchy brown, gradually lighter towards apex, under-side pitchy or 
reddish-brown ; head small, eyes very large approximate on vertex, an- 
tenn short, with the last joints forming a fusiform club ; thorax almost 
semicircular, sinuate and slightly impressed on each side at base, very 
closely and finely punctured; elytra at base as broad as thorax, very 
gradually narrowed behind, obtusely rounded at apex, raised at suture, 
with very fine and close, somewhat asperate, sculpture ; legs ferruginous 
or brownish-yellow, first joint of posterior tarsi about as long as all the 
following. L. 3-4 mm. 
Male with the anterior tarsi dilated, and the elub of the antenne 
larger. 
In fungoid growth on old trees; local and, as a rule, not common ; Darenth Wood ; 
Westerham, Kent, bred from a hard fungus on beech (?) in abundance, Gorham ; 
Cowley ; Chingford ; Cobham ; Dover; New Forest ; Swansea; Llangollen ; Bar- 
mouth; Cambridge; Repton; Northumberland and Durham district, “ bred from a 
fungus (Polyporus radiatus) growing on alder near Woovler,”’ J. Hardy ; Scotland, 
Tay district, Aviemore. 
Small light-coloured varieties occasionally occur; the species is some- 
what variable both in size‘and colour. In Dr. Power’s collection there 
is one of theso varieties taken in some numbers by Turner in agarics at 
Windsor ; I thought it might possibly be a different species, but Herr 
Reitter considers it to be merely a variety, 
