534 FAUNA HAWAIIENSIS 



The unique example obtained by Mr Perkins is unfortunately in very bad preser- 

 vation, but still serves to show very clearly the distinouishing^ features. This species 

 is at once distinguished from all other Hawaiian members of the genus by two 

 characters: (i) the diverging striae on the metasternum and first abdominal segment 

 are quite obliterated posteriorly, ending blindly in the region where they would normally 

 curve round behind the coxae ; (2) the prosternum is not only very short, but its width 

 between the striae at the base equals | (or more) of its length, and the striae diverge 

 little in front (PI. XV. fig. 34). 



The relatively broad, oval form, the total absence of punctures, and the strong 

 convexity of meso- and metasterna are also noteworthy cliaracters. The mesosternum 

 is short, the suture between it and the metasternum fine but distinct. In addition 

 to the example obtained by Perkins, I have examined two in the British Museum, 

 obtained by Blackburn, placed as A. flavitarsis, but undoubtedly of this species. 

 Wings not examined. 



Hab. Oahu, back of Tantalus, vi. 1901 (no. 781, Perkins). 



Fam. SCAPHIDIIDAE\ 



ScAPHisoiM.A Leach. 



Scaphisoina Leach, Edinb. Encycl. ix. 1812, p. 89; Erichson, Nat. Ins. Deutsch. 

 III. 1848, p. 8. 



( I ) Scaphisoiiia perkinsi, sp. nov. 



Sat angustus, ovalis, convexus, nitidus, niger, elytrorum apicibus late fiavo-testaceis, 

 pedibus antennisque testaceis, his apicem versus parum intuscatis ; capite laevi, fere 

 impunctato ; prothorace antrorsum fortiter angustato, subtilissime punctato ; elytris sat 

 fortiter, aequaliter nee dense punctatis, stria suturali antice baud arcuata ; abdominis 

 apice testaceo. Long. corp. (sine capite) fere i^ mm. 



A graceful, narrow (but not extremely narrow) form, shining black, with the 

 apices of the elytra broadly pale yellow-testaceous. The thoracic punctuation is so 

 fine as to be only with difficulty visible. The elytral punctures are well marked, but 

 not very close. The sutural stria is well marked, and does not curve outwards at its 

 anterior end. The prothorax is much narrowed in front, and its front margin is some- 

 times very narrowly testaceo-piceous. As it seems not \'ery likely that a Scap/iisoiiia 

 would be introduced, I have described this species, although there are a number of 

 species with which it has not been possible to compare it. Of those which I have seen, 

 the Central American S. longicolle Matthews somewhat approaches it. The chief 

 characters of 5". perkinsi appear to be the broadness of the pale apical part of the 



' By Hugh Scott. 



