589 



curving inwards at the base in the direction of the frontal fovea. 

 Antennae as in E. samoensis but proportionately longer. Prothorax a 

 little longer than broad, almost parallel-sided from the base to the middle, 

 then roundly narrowed to the apex; the dorsum gently convex longi- 

 tudinally, with a broad shallow median furrow in the basal half, the 

 shiny area on each side minutely punctate and with scattered rather 

 large punctures, each bordered inwardly or anteriorly by a nuich flattened 

 granule; most of the punctures bearing minute recumbent pale setae. 

 Elytra narrowly ovate; rather sharply pointed behind and almost jointly 

 rounded at the apex; the punctures in the rows separated by their own 

 length or more and each with a depressed granule at its anterior edge; 

 the punctures in the stripes not visible through the scaling, and the rows 

 on the inflexed margins curved, irregular behind and not reaching the 

 base; a large shallow oval impression close to the lateral margin not far 

 from the base; the bare intervals adjoining the suture eacli with a row 

 of small, much depressed, distant granules; on the broad inflexed margin 

 of the elytra the median interval has a curved row of about 12-16 shiny 

 granules, each bearing a stout upwardly directed red-brown spine, and 

 below it another sparser row of sini'lar but much smaller spines; the 

 extreme lateral margin of the elytra with a fringe of projecting setae on 

 the apical half. Legs coriaceous, with numerous low shiny granules (each 

 bearing a stout recumbent seta) and thmly clothed with narrow blue-green 

 scales; the hind femora with a large smooth oval impression on the inner 

 face. Venter with the first ventrite very broadly and shallowly impressed. 

 Length, 12 mm.; breadth, 5 mm. 



Habitat. — Upolu Island. One male, Tafua Volcano, 1917 

 (Dr. H. Szvale). 



Type in the British Museum. 

 A strikingly distinct species. 



Subf.\:milv Acicnemidinae. 

 Acicnemis foveicollis Heller. 



A. foveicollis Heller. Denks. K. Ak. Wiss. Wien, LXXXIX : 

 695, 1913. 



Habitat. — Savaii Island (Dr. Rechinger): Upolu Island (Dr. 

 Rechinger): Tutuila Island, one male and one female. 760-1070 

 feet, IV and VI. 1918 (Dr. H. C. Kellers). Tahiti: Tonga 

 Islands ; Wallis Island. 

 Genus Trigonopterus Fauvel (1862). 



It is not clear whether Pascoe's genus Idotasia (1872) is 

 really distinct from Trigonopterus, but certainly several species 



