COLEOPTERA 503 



Male pygidium rather broad, very slightly emarginate, the angle on either side 

 of the emargination being olnuse and rounded, not prolonged into a tooth ; the last 

 ventral segment has the emargination so broad and shallow that it is almost truncate ; 

 supplementary segment with margin entire, somewhat rounded ; end of female pygidium 

 rounded and with a more or less marked median depression. Seventy-one specimens. 



A single female, which cannot be separated from the rest, is numbered as coming 

 trom Halemanu, Kauai. 



Hab. Maui, Haleakala (Olinda, &c.), 4000 — 5000 ft. ; almost all from 5000 ft. 

 or above ; some recorded as " beaten from flowers of tree Lobelia " (Perkins). 

 Kauai .'' (no. 507). H. S. 



(23) Nesopetiniis interiucdius, sp. nov. 



N. perkinsi affinis, sed minor, nigrior, laevior, haud aeneo-micans, elytris hand 

 sulcatis, pubescentia curtiore, prothorace abdomineque rarius ac subtilius punctatis. 

 Niger, prothoracis lateribus abdominisque marginibus pedibusqu^ fusco-testaceis. 

 Long. corp. 3 mm.; lat. corp. 1 1 mm. 



There is only a single male specimen of this form. It is very much smaller than 

 most specimens of N. perknisi, and is further distinguished by the rarer punctuation, 

 scantier pubescence, black colour, and absence of the vague elytral furrows and of the 

 dull brassy reflection characteristic of the former species. It is also proportionately 

 narrower, and the surface is very much smoother than that of A^. perkinsi. There is an 

 obsolete depression on the hind part of the prothorax. Thus in almost all the characters 

 which distinguish it from the former species, it shows a distinct appro.ximation to 

 A^. blackburni. 



Pygidium with a very slight emargination, the angles not forming teeth; supple- 

 mentary segment not emarginate; last ventral segment truncate. 



Hab. Lanai, about 2000 ft. (no. 92, Perkins). H. S. 



Group 3 B. 



(24) Nesopetimts blackbunti. Sharp. 



Brachypephis blackburni Sharp, Tr. ent. Soc. London, 1881, p. 516. 



This species was described from a single male found on Mauna Loa. We now 

 have 23 specimens. It is at once distinguished by the glabrous, smooth, black 

 and highly shining appearance, and the scantiness of the punctuation. The surface is 

 very finely alutaceous, but the reticulations are so minute that they do not prevent the 

 insect from appearing highly polished. The species is rather narrow, with somewhat 

 elongate antennae. The thorax is subquadrate, with the sides slightly sinuate towards 

 the base, with a somewhat vague transverse impression on the posterior part of the 



F. H. III. 65 



