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recto, angulis posticis acute procluctis, margine antico utrinque obliquato, medio obtuse angulato, 

 marginibus lateralibus et antice late carioso-punctatis, disco fere lsevi, sat insequali, medio antice 

 carinulato, postice sulcatulo; scutello magno, impresso, truncato; elytris elongatis, subparallelis, basi 

 prothorace haud latioribus, sutura et utrinque costulis 4 sat acutis, intervallis transversim clathratis, 

 apice rotundato; subtus cum antennis tenuissime cinereo-pubescens. — I. Yiti. (M. G.) 



Par son prothorax peu attenue en avant, mais fortement prolonge aux angles posterieurs, cette 

 espece forme le passage entre les deux groupes. 



B. Prothorax subquadratus, antice haud sensim angustatus. 



5. Melaneros guadraticölHs. Long. 5 mm. Elongatus, parallelus, prsecedenti sat similis, sed statura minore, 



elytris atrocaeruleis, prothorace subquadrato, angulis posticis nullo modo productis, margine postico 

 bisinuato. basi sat fortiter impresso, et medio sulcatulo, antice et lateribus punctis grossis sparsuto, 

 elytris magis costulatis. intervallis angustioribus, uniseriatim grosse punctatis. — Tongatabu. (M. G.) 



6. Melaneros angustiformis. Long. 4 mm. Elongatus. subparallelus, niger, sat nitidus, elytris atroeyaneis, 



parum nitidis; capite inter oculos foveato, antennis gracilibus, corpore sensim brevioribus; prothorace 

 subquadrato, lateribus basi leviter sinuatis, angulis posticis extus sat acute divaricatis, margine 

 postioo fere recto, antico vix obtuse angulato, medio antice breviter carinulato, postice striato, 

 utrinque transversim impresso, antice grosse punetato; scutello subquadrato, fere laevi; elytris 

 elongatis, subparallelis, apice rotundatis, sutura et utrinque costulis 4 leviter elevatis, intervallis 

 biseriatim grosse punctatis. — I. Yiti; Tongatabu. (M. Gr.) 



1. Calochromus Guerinii M. Leay. Trans. Ent. IST. S. Wales. 1872, 263. Long 8 mm. Nigro- eyaneus, 



nitidus: prothorace capite paulo latiore, subtransverso, quadrato, angulis rotundatis, linea media 

 profunde impressa, ad basin foveata, lateribus late bifoveatis, aurantiacis; scutello subtruncato, 

 elytris aurantiacis, apice eyaneo, dense subcostatis, costis alternatim majöribus. — Gayndah. (Sp. inv.) 



2. Calochromus disäcolUs. Long. 8 mm. Oblongus, niger, prothorace elytrisque flavo-ochraeeis, illo 



macula postica. illis macula apicali scutelloque nigiis; capite sub antennis carinato, summo striola 

 longitudinali; antennis basi approximatis , corpore vix brevioribus, compressis, articulis (2° parvo 

 excepto) subsequalibus; prothorace transversim quadrato, angulis posticis rotundatis, medio profunde 

 canaliculato, utrinque biimpresso; scutello truncato; elytris mox post humeros leviter ampliatis, apice 

 rotundatis, dense pubescentibus, utrinque haud 5 costulatis, intervallis longitudinaliter ac leviter 

 elevatis, interstitiis tenuiter transversim plicatulis; abdomine nigro-violaceo. — Eockhampton. (M. G.) 



3. Calochromus insidiator. Long. 8 Va mm. Elongatus, niger, nitidus, elytris cinnabarinis, dense pubescentibus ; 



capite tenuissime strigosulo, inter antennas foveato; antennis corpore paulo brevioribus, oculis 

 prominentibus; prothorace longitudine fere duplo latiore, antice vix angustato, medio profunde 

 sulcato, utrinque late ac profunde foveato, antice transversim impresso, scutello subquadrato, nigro, 

 punetulato, elytris elongatis, apice tantum attenuatis, sutura et utrinque costulis 4 leviter elevatis, 

 intervallis dense tenuiter granulato- punctatis; subtus nitidion, nigro- violaceus; antennis basi 

 approximatis. — Sidney. (M. G.) 



G. Kiaius (Especcs niistrnliennes). 



I. Prothorax vix transversus, postice attenuatus, basi truncatus. 

 Elytra magis convexa, abdomine paulo breviora. 

 1. L. guttulatus. Long. IVa — 2Va mm. Oblongo-ovalis, postice leviter ampliatus, fusco-niger, pubescens, 

 prothorace rufo, basi pallidiore, elytris utrinque fascia media, sutüram haud attingente, margine 



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