collected in New Holland by Mr. Robert Brown, 47 1 
versum, apice rotundatum. Antenne breviores, rufo-piceæ; ar- 
ticulis quinque intermediis extus apice spina armatis. Thorax 
rugosus, utrinque spina acuta valida, antice et postice constric- 
tus, dorso verrucis s. tuberculis quinque, in quincunce ordi- 
natis, complanatis. Scutellum piloso-cinereum. Elytra exca- 
vato-punctata: punctis magnis profundis, piceo pallidoque 
varia, apice bispinosa. Pedes dilute picei. 
Disticnuocera MacLeay. 
Labrum transversum, tetragonum. 
Labium membranaceum, apice bilobum: lobis divaricatis. 
Mandibule trigonæ, edentulæ, apice incurve, acuta. 
Maxille basi aperte. 
Palpi filiformes. 
Mentum transversum, trapeziforme. 
Antenne sensim crassiores, disticho-ramosæ. 
This genus, named long ago, as above,-by Mr. ee ps con- 
nects Cerambyx with Molorchus, Necydalis, and Rhagium. With 
the latter indeed it has little other connexion than from the simi- 
lar shape of its elytra, which grow gradually narrower towards 
the apex ; from Cerambyz it is distinguished by its antennæ; and 
from Molorchus and Necydalis by its elytra, scarcely at all shorter 
than the wings, and by its disticho-ramose antennæ, | 
maculicollis. 23. 
Prate XXIII. Fic. 10; 
Long. corp. lin. 8 
Corpus fere cuneiforme, subtus pilis argenteis nitidum, supra ni- 
grum, obscurum. Caput subcordatum, pilosum, canalicula- 
tum, utrinque ante antennas carinatum. Oculi brunnei. An- 
tenne breviores, nigrae : articulis omnibus apice biramosis (duo- 
bus primis brevissime); ramis oppositis compressis vertice ro- 
tundatis, 
