438 FAUNA HAWAIIENSIS 



(5) Goniotliorax perkiusi, sp. nov. 



Fusco-rufus, antennis pedibusque rufis, tibiis fuscescentibus ; thorace transverse, 

 post medium leviter angustato, dense punctato, fere inimpresso. $ Long. corp. 9 mm., 

 lat. 3, long, prothoracis 2 mm., lat. proth. 2f, long, elytr. 3^ mm. 



This is the largest and finest of the Hawaiian Nitidulidae, though the thora.x is not 

 so remarkable in form as it is in G. cnneatus and G. conicicollis ; its angles are less 

 sharply marked, the front angles more rounded, and behind the middle it becomes 

 perceptibly narrower towards the base. It connects Gonioihoi'ax inaegualis with the 

 Maui and Molokai forms of the genus. We have received only six specimens, most of 

 which are males ; there are however two females, which, although not taken with the 

 males, are I believe the same species. This sex has the last segment constructed very 

 much as in G. cuneatus, but the pygidium is rather broader and more truncate at the 

 tip; and the tufts on the hind margin of the last ventral plate are more widely separated. 

 In the male the structure of the terminal segment is almost the same as it is in 

 G. cuneatus. 



Hab. Hawaii. Kilauea (over 4000 ft., &c.) ; Hilo, 1800 ft. (nos. 565, 584, 

 823, &c., Perkins). 



(6) Goniotliorax fugitivjis, Blackburn. 



Gonioryctus fiigitivus Blackburn, Tr. Dublin Soc. iii. 1885, p. 131. 



The unique exponent of this name apparently comes very near G. inaegualis but 

 does not quite agree, as the inner margin of each tibia is quite straight, and there is no 

 appearance of incrassation at the tip ; the elytra appear to be more deeply sulcate, and 

 the thorax rather more densely punctate. It is probably nearer to G. eremitns, but it is 

 very different in colour, and does not agree in the sculpture, and the male characters 

 seem to be a little different, but as the specimen is not in good preservation and I am 

 not able to make a thorough examination of it, I am unable to speak positively. 



Hab. Hawaii, 3500 ft. near Waimea on a flower (Blackburn). 



(7) Goniotliorax inaegualis, sp. nov. 



Fusco-rufus, thorace baud elongato, posterius leniter angustato ; elytris obsolete 

 sulcatis, minus obsolete punctatis. Long. corp. 7 — •]\ mm., lat. 2f, long, prothoracis ij, 

 lat. proth. 2, long, elytr. t,\. 



This species has not the peculiar form of the thorax of the other members of the 

 genus, but in other respects belongs perfectly to the genus, and the front femora extend 

 a good deal beyond the sides of the thora.x. The male characters are very remarkable ; 

 the pygidium (Plate XIV. fig. 10 a) is convex and slightly impressed on either side near 

 the base; the last ventral plate (Plate XIV. fig. 10 (5) has a very large and deep impression^ 



