550 FAUNA HAWAIIENSIS 



and has two complete series of dorsal punctures on the thorax ; the median grooves on 

 the side of the head are obsolete, and the peculiar lines along the suture of the elytra are 

 not so well developed. 



The genus may be placed next to Leptacinits, from which it is well distinguished by 

 the suture of the elytra and the longer palpi. 



( I ) Xanthocorymis dcccptor, sp. nov. 



Angustus, nitidus, picescens, antennis, mandibulis, palpis pedibusque rutis, abdomine 

 apice et basi plus minusve rufescente. Long. 7|- mm. 



Plate XVI. fig. 2 1. 



The colour is predominantly dark, but looks as if this were a reddish insect strongly 

 tinged with black, the thorax being almost quite black, while the legs are quite pale. 

 The head is only obsoletely and sparingly punctured, punctures being quite absent all 

 along the middle. The long and narrow pronotum has on each side of the middle a 

 dorsal series of about ten punctures, and outside this a few other punctures irregularly 

 placed ; the punctures are subobsolete. The elytra are about as long as the thorax, 

 rather sparingly punctured. Three specimens. 



Hab. Kauai, mts. Waimea, 4000 ft. v. 1894 (Perkins). 



HoLOcoRVNUs, gen. nov. 



Palpi articulo ultimo parvo. 



Elytra sutura haud imbricata. 



Caput antice 4 -sulcatum. 



Pedes intermedii subapproximati mesosterno inter eos elongato-acuminato. 



At the time I described Pachycoryniis disccdcns 1 remarked that it was really a 

 distinct genus. The discovery of allied, but generically distinct, forms, makes it desirable 

 to give this form due generic rank. There can be no doubt that it is closely allied to 

 Lenrocoryiius, from which Ho/ocoryiiits differs by the definite frontal grooves, the more 

 approximate middle coxae and the absence of the raised margins along the suture of the 

 elytra. 



( I ) Holocoryiuis discedeiis, Sharp. 



Pachycorymts disccdcns Sharp, Tr. ent. Soc. London, 18S0, p. 50. 



In this species the penultimate joints of the antennae, and the impressed punctures 

 on the head and thorax, are large and remarkably definite. It has not been found by 

 Dr Perkins. 



Hai;. Oahu, under bark in the forest (Blackburn). 



