%6 
Distichocera maculicollis, Boisduval, Faune de l’Océanie. 
“Corpus fere cuneiforme, subtus pilis argenteis nitidum, supra ni- 
grum, obscurum. Caput subcordatum, pilosum, canaliculatum 
utrinque ante antennas carinatum. Oculi brunnei. Antenne 
breviores, nigree: articulis omnibus apice biramosis (duobus pri- 
mis brevissime); ramis oppositis compressis vertice rotundatis 
sinistris paulo longioribus, articulo extimo simplici clavato. 
Thorax subcylindricus: maculis quatuor dorsalibus quadratim 
ordinatis. Elytra cuneiformia: lineis tribus longitudinalibus 
elevatis: striga apud scutellum et alia majori in medio apud 
suturam piloso-argenteis, apice truncata. Femora brunnea. 
Tibize bicalcaratee. Alee elytris longiores.” — Kirby, 1. c. 
Fem. Distichocera rubripennis, MacLeay, App. King’s Voyage. 
“ Rufo-testacea subtomentosa, capitis lateribus oreque nigris, ver- 
tice canaliculato, antennis nigris, articulis vix biramosis, ramis 
sinistris brevissimis ; thorace atro, vittaé utrinque rufo-testaced, 
scutello nigro, elytris rufo-testaceis tomentosis apice obtusis de- 
hiscentibus ; corpore cuneiformi subtus villo argenteo micante, 
abdomine utrinque nigro maculato, pedibus nigris.””—MacLeay, 
U. ec. 
Distichocera ferruginea, Guérin, Voyage de la Coquille. 
Distichocera ferruginea, Boisduval, Faune de l Océanie, 467. 
“Nigra; capite macula frontali, thorace vittis duabus elytrisque 
dense villoso-fulvis.’’—Boisduval, 1. c. 
Distichocera fulvipennis, Newman, Ent. Mag. v. 492. 
“Antenne nigre; caput nigrum, fronte fulvo: prothorax niger, 
Ineis 2 dorsalibus, longitudinalibus, latis, fulvis: scutellum ni- 
grum: elytra fulya: abdomen piceum, lanugine argentea vesti- 
tum: pedes picei. (Corp. long. 9 unc. ; lat. 3 unc.)’—New- 
man, l. c. 
I have cited entire the original specific characters in every instance, 
in order to save the reader the trouble of making the references. I 
will now proceed to give more detailed characters. 
Male.—Head somewhat cordate, black, velvety, having a slight 
epicranial sulcus, which is prolonged anteriorly between the bases of 
the anteunze: face slightly inclined, rather long: eyes arcuate, reni- 
form, pitchy brown, large, approaching on the epicranium, somewhat 
dilated on the cheeks : antennz as long as the body, 12-joited, black ; 
the first joint short, stout, somewhat obconical; the second very 
short ; the following, to the eleventh inclusive, moderately short, still 
much longer than the second, somewhat cyathiform as regards the 
shaft, and emitting from its apex two long branches; these increase 
in length from the first pair, and those on one side of each antenna 
are uniformly longer than those on the other ; this discrepancy is par- 
ticularly observable in the third (or first branched) joint ; the twelfth 
joint is club-shaped and undivided; it is longer than either of the 
others, yet scarcely exceeds in length the branches of the eleventh. 
Prothorax subquadrate, its anterior and posterior margins nearly equal, 
its lateral margins somewhat uneven, but not produced into a central 
