Coleopterafrom the Hmvaiian Islands. 41 



but is easily distinguished by tlie shorter antennae ; the 

 middle coxte also are slightly less approximate, and the 

 space between them is slightly different in its structure. 



I have seen but a single individual, which was found on 

 Mauna Loa, Hawaii, at an elevation of about 4,000 feet. 



Diestota punciiceps, n. sp. Depressa, nigro-fusca, 

 abdomine paulo dilutiore, opaca, pedibus antennarumque 

 basi testaceis ; capite crebre fortiterque punctato ; pro- 

 thorace fortiter transverso, basin versus angustato, crebre 

 fortiter subobsolete punctato ; elytris crebre subtiliter 

 punctatis ; abdomine segmentis basalibus crebre punctu- 

 latis. Long. 2| mm. 



Antennse rather short and stout, distinctly thicker 

 towards the extremity, the two or three basal joints 

 yellowish, the others darker, 3rd joint slightly shorter 

 than 2nd, 7 — 10 rather strongly transverse. Head short 

 and broad, coarsely and closely punctured. Thorax dis- 

 tinctly narrower than the elytra, strongly transverse, the 

 greatest width in front of the middle, thence much nar- 

 rowed to the base, its surface rather closely and coarsely 

 piuictured, but the punctures very shallow ; elytra much 

 longer than the thorax, rather closely and finely punctured. 

 Hind body more shining than the other parts, the basal 

 segments somewhat closely but indistinctly punctured, the 

 apical segments more sparingly punctured. Legs yellow. 



The only individual I have seen does not exhibit any 

 sexual characters and is probably a female ; the species is 

 more rufescent in tint than the preceding ones, the head 

 beneath, the sides of the presternum, and the mesosternum 

 being of a reddish colour ; the middle cox^e are rather 

 widely separated, and the mesosternum has very obscure 

 traces of a carina along the middle. 



Found by beating in a mountain forest near Honolulu. 



Diestota carinata, n. sp. Depressa, nigricans, antennis 

 basi fusco-testaceo, pedibus testaceis ; opaca ; capite dense, 

 fortiter, fei*e rugulose, punctato; prothorace transverso, 

 elytris angustiore, dense, rugulose punctato ; elytris rugu- 

 lose subtiliter, punctatis ; mesosterno subtiliter carinato. 

 Long. 2 1 mm. 



Antennre short, not stout, distinctly thickened towards 

 the extremity, the basal joint infuscate-yellow, the others 

 nearly black, ord joint as long as, though more slender 



