448 
APPENDIX; 
[B* 
73. Megamerus Kingii, (n. s.) M. nigro-fuscus labro palpisque 
piceis thorace vix punctato postice rugoso, elytris rugis vel 
punctis confluentibus substriatis fossula ad huraeros profunda 
lineaque suturali impressis, corpore subtus pilis sub-sericeo 
pedibusque concoloribus. 
Tab. B. fig. 2. 
Obs. This singular insect has an affinity to Sagra, but differs 
from that genus in having setiform antennse, porrect mandibles, 
and securiform palpi. Its habit is also totally different from that 
of a Sagrttt and more like that of some of those insects which 
belong to the heterogeneous magazine called PrionUs. It is, un- 
doubtedly, the most singular and novel form in Captain King’s 
collection, and forms a new genus, of which the characters are as 
follow. 
MEGAMERUS, (novum genus.) 
Anfennce inter oculos insertse filiformes vel potius setacese arti- 
culo basilari crassiori secundo subgloboso brevissimo apicali acuto. 
Labrum transverso-quadratum antice submembranaceum tomen- 
tosum subemarginatum. 
Mandibulcs exertse porrectse suprd convexiusculse lunulatse vel 
falciformes dorso subsinuatse apice vel extus oblique truiicatse 
acutissirase. 
Maxillce basi cornese processubus duobus submembranaceis api- 
cem versus instructse, lobo externo vel apicali ovali extus ciliato, 
interno tenuiori apice subacuto margineque interno vix unidentato. 
Palpi maxillares quadriarticulati, articulo stipitali minimo in- 
conspicuo, secundo obconico longo duobus ultimis simul sumptis 
longitudine fere sequali, tertio obconico crassiori, ultimq securi- 
formi compresso. 
Palpi labiales triarticulati articulo stipitali minimo inconspicuo, 
secundo longo obconico setis quibusdam ad apicem instructo, tertio 
triangulari compresso vel securiformi. 
Labium membranaceum cordatiim antice bilobum, lobis elon- 
gatis ciliatis interno latere rectilineari extus ad apicem rotundatis. 
Mentum semicirculare antice rotundatum raargine antico emar- 
ginato. 
