282 FAUNA HAWAIIENSIS 



(3) Nesocidiuni smaragdinum, sp. nov. 



Angustum, convexum, nigrum, supra laetissime viridi-micans, antennis pedibusque 

 fusco-rufis ; elytris angustis, humeris nullis, profunde quadri-impressis, fortiter punctato- 

 striatis, parte apicali laevigata. Long, vix 3 mm. 



At first sight similar to N. laeticuluiu, but undoubtedly distinct, by the form of the 

 elytra, and by the four deep impressions thereon. The basal constriction or neck of the 

 thorax is quite distinct, and the elytra at the shoulders are gently and gradually rounded 

 off. Seven specimens. 



Hab. Molokai. Mountains, 4500 ft., in June (Perkins). 



(4) Ncsocidiiiin fiilgens, sp. nov. 



Angustum, convexum, piceum, supra laetissime viride, antennarum basi pedibusque 

 flavis, antennis extrorsum obscuris ; elytris angustis, humeris nullis, profunde quadri- 

 impressis, fortissime punctato-striatis, dimidio apicali laevigato. Long. 2\ mm. 



Differs from N. sJiiaragdinunt by the clear yellow legs, and the more deeply grooved 

 elytra ; the head and thorax are slightly narrower, the latter has the surface slightly 

 strigose transversely ; on the other hand the elytra are not quite so narrow as in 

 N. smaragdinum. Six specimens. 



Hab. Maui. Haleakala, 5000 ft., May 1893 ^i^d June 1896 (Perkins). 



(5) Nesocidiuni koebelci, sp. nov. 



Angustum, convexum, nigrum, nitidum, supra nigro-aeneum, antennarum basi 

 pedibusque fusco-rufis ; elytris, basi baud depressa, quadri-punctatis, punctis fere aequa- 

 libus, preterea fortiter punctato-striatis, dimidio apicali laevigato. Long. 2% mm. 



This differs from the allied species, by the less flat base of the elytra, and by the 

 anterior impressions thereon being smaller, interrupting only the third interstice. The 

 thorax has a distinct constriction at the base, forming a short neck ; the elytra are narrow 

 and have no shoulders. One specimen. 



We are indebted to Mr Albert Koebele for the discovery of this species. 



Hab. Oahu. Mountains near Honolulu, 2000—3000 ft., 1897 (Koebele). 



Section 2. Corpus superne baud metallicum ; elytra interdum parum perspicue 

 quadri-impressa. 



(6) N^csocidiuni perkiiisi, sp. nov. 



Piceum, capite rufo, antennarum basi, pedibus elytrorumque maculis quatuor flavis ; 

 elytris profunde striatis, striis in parte basali fortiter punctatis, apicem versus desinenti- 

 bus. Long. 3 mm. 



A very elegant and perfectly shaped insect ; the elytra exactly oval, each with a 

 large humeral and another pre-apical yellow mark, with broad, deep, perfect, striate 



