1917.] 249 



8. — Mecyclothorax perpolitus, sp. n. 



Nigricans, perpolitus, proiioto utrinque et postice elytrisque pallido- 

 marginatis, pedibus antennarumque basi pallidis. Pronotum sat latum, 

 transversum (circa 4 : 3) lateribus basim juxta parum sinuatis, angulis 

 postevioribiis obtusissimis, fere rotuiidatis. Elytra basim versus depressa, 

 punctoriim seriebus 2 aut 8 plus niiuus distinctis, secunda hand ad basim 

 elytrorum exteasa, tertia vix distiuguenda aut abseute. Long. 4'5 mm. 



Hab. In insula Hawaii, Kilaueam juxta, et forsitan in insula Maui etiam 

 rnrissime prebensus. 



Ohs. The specimen I have chosen as type is labelled Haleakala, 

 Maui, but I suspect this is an error, as a year or tvro later (July 1903) 

 I took what appears to be the same species at Kilauea, Hawaii. 



9. — Tlu'iscotliorax suhuncius, sp. n. 



Nigro-brunneus aut castaneus, perpolitus, pedibus antennis palpisquo palli- 

 dioribus. Pronotum baud fortiter transversum (circa 6 : o) coidatum, angnlia 

 posterioribus distinctissimis. Elytra nitidissinia, stria auturali basim versus 

 subtiliter punctata, punctorum etiam serie secunda brevi et nonnuuquam 

 tertia obsoleta parum distincte adumbratis. Long, circa 4'25 mm. 



IIab. In montibus Ilawaiiensibus, Kilaueam juxta, sub cortice rami 

 cujusdam arboris, " Cheirodendron " dictae et alibi mense Julio anno 1903 

 prehensus. 



Ohs. Allied to T. unctiis Blackh., but smaller and with less wide 

 thorax, more shining elytra, etc. I have an immature example collected 

 by Mr. W. M. GifEard which differs from the type in having a more 

 definite neck at the base of the pronotum, so that the hind angles are 

 sharper and rathei* more pi'ominent. The punctures on the elytra are more 

 developed, the inner rows more distinct and extending further back, while 

 in all four rows are more or less evident. Mr. Giffard had at least one 

 better example than this, and it is probable that I attached the name 

 T. suhiinctus to his specimen. Further material is necessar}^ to decide 

 whether two or one species are included by me under this name. 



10. — Metrothorax carteri, sjd. n. 



Niger, nitidus, elytris vix aenescentibus, ore, antennarum bn.si, pedibus 

 elytrorumque margine explanato rufesceutibus aut testaceis. Pronotum trans- 

 versum (circa 4 : 3) baud cordatum, lateribus fere ad angulos ipsos posteriorea 

 rotundatis, angulis tamen ipsis distinctis, perpaullo exstautibus. Elytra 

 striata, striis baud evidenter punctatis, stria suturali et secunda distinctis et 

 quam caeterae, quae levissiraae sunt, profundioribus. Long, circa 3 mm. 



IIab. In montibus Waiauaeeusibus insulae Oahu supra pedes 2000 alt. 

 captus. 



