NitidulidcB from the Haicaiian Islands. 131 



as No. 78, and am informed that the species is very rare, 

 and is found near the summit of the highest peak in 

 Honokilu. 



Obs. — Mr. Blackburn informs me that in the female 

 the apical dorsal segment has a large obtuse tubercle Avith 

 a faint depression on each side of it, and that its hind 

 margin is rounded-truncate, and has an elevated border. 



The following description embodies such of the cha- 

 racters of Gonioryctus lahis, of Gonioryctus Blackhurni, 

 and of Gonioryctus monticola, as I have been able to 

 observe : — 



Eyes coarsely granulated, angular behind, and so 

 forming the hind angles of the head, which is abruptly 

 constricted posteriorly, and has a comparatively narrow 

 neck. Antennal furrows broad, abruptly turned inwards 

 so as to be subangulate. Antennre with a largely-deve- 

 loped abrupt three-jointed club. Prosternal process greatly 

 turned upwards behind the front coxge (less so in G. mon- 

 ticola than in the other two species) ; its extremity with- 

 out ciliEe. Tibife not serrate externally, their apical spurs 

 excessively short ; tarsi broad and largely developed, with 

 peculiarly elongate and narrow lobes. Hind body with 

 three corneous dorsal segments, of which two-and-a-half 

 are left uncovered by the abbreviated elytra ; the fimbriae 

 broad, and their inner edge curved. 



Brachypeplus. 



The ten Hawaiian species I associate together under 

 this generic name exhibit so much diversity of facies, that 

 anyone treating of them without reference to the described 

 species from other parts of the world would be strongly 

 induced to treat them as forming four or even five distinct 

 genera. The variety of the foi*ms grouped together by 

 Mr. Mm-ray, as forming the genus BracJiypeplus, pre- 

 vents me, however, from forming separate genera for the 

 Hawaiian insects. I have, therefore, thought it will 

 prove more convenient to tabulate the characters of these 

 groups, and not create any names for them. None of the 

 groups seem to agree well with any of the subgenera to 

 which names were assigned by Murray, but I expect from 

 Murray 's figure o^ Brachypeplus cuneatus that my BracJiy- 

 peplus impressus group will be found to approximate to 

 his Austro-Malayan subgenus Selis. 



