76 



Distichocera maculicollis, Boisduval, Faune de I'Oce'anie. 



" Corpus fere cuneiforme, subtus pilis argenteis nitidum, supra ni- 

 grum, obscurum. Caput subcordatum, pilosum, canaliculatum 

 utrinque ante antennas carinatum. Oculi brunnei. Antennae 

 breviores, nigrse : articulis omnibus apice biramosis (duobus pri- 

 mis brevissime); ramis oppositis compressis vertice rotundatis 

 sinistris paulo longioribus, articulo extimo simplici clavato. 

 Tborax 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. 

 Tibiae bicalcaratae. Alae elytris longiores." — Kirby, I. 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, vitta utrinque rufo-testacea, 

 scutello nigro, elytris rufo-testaceis tomentosis apice obtusis de- 

 hiscentibus ; corpora cuneiformi subtus villo argenteo micante, 

 abdomine utrinque nigro maculato, pedibus nigris." — MacLeay, 

 I. c. 



Distichocera ferruginea, Guerin, Voyage de la Coquille. 



Distichocera ferruginea, Boisduval, Faune de I'Oceanie, 467. 



" Nigra ; capite macula frontali, thorace vittis duabus elytrisque 

 dense villoso-fulvis." — Boisduval, I. c. 



Distichocera fulvipennis, Newman, Ent. Mag. v. 492. 



" Antennae nigrae ; caput nigrum, fronte fulvo : prothorax niger, 

 lineis 2 dorsalibus, longitudinalibus, latis, fulvis : scutellum ni- 

 grum : elytra fulva : abdomen piceum, lanugine argentea vesti- 

 tum : pedes picei. (Corp. long. 9 unc. ; lat. 3 unc.)" — New- 

 man, I. 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 antennae : face slightly inclined, rather long : eyes arcuate, reni- 

 fonn, pitchy brown, large, approaching on the epicranium, somewhat 

 dilated on the cheeks : antennae as long as the body, 12-jointed, 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) jouit ; 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 



