COLEOPTERA 531 



are reduced, but it has not been possible with so little material to determine to what 

 extent : it is possible they are even more reduced than those of the Lanai A. siidalahts. 

 I have included the Molokai specimens in the species. A third and smaller Molokai 

 specimen, the wings of which it has been impossible to examine, appears inseparable. 



Hab. Lanai, Molokai. — Lanai ; 2000 — 3000 ft. — Molokai ; two from 3000 ft., the 

 third (the wings of which I have been unable to examine) from 6000 ft. 22. vi. 1893 

 (no. 192). — (Perkins.") 



(28) Acritiis august Its, sp. no v. 



Ovalis, parum angustus, piceus, nitidus, impunctatus, laevis ; prosterno sat longo, 

 striis per totam longitudinem leviter divergentibus ; mesosterno impresso. Long, i mm. 



Smooth, impunctate, rather narrowly oval, with legs not extra long, and impressed 

 mesosternum. Distinguished by the form of the keel of the prosternum, which has a 

 narrow base, and is about twice as long as its breadth at the base, with the striae 

 gradually diverging throughout their length from behind forwards. 



A specimen from Kauai appears referable to this species. Wings not examined. 



Hab. Hawaii, Kauai. — Hawaii; Olaa, xii. 1896. — Kauai; Halemanu, 4000 ft. 

 v. 1895 (no. 504). — (Perkins.) 



(29) Acritus concentricits. Sharp. 



Aeletes coiicentricus Sharp, Tr. Dublin Soc. iii. 1885, p. 130. 



Plate XV. fig. 27. 



1 have examined the type of this species, which has not been obtained by 

 Mr Perkins. It is a small, rather narrow and convex form, at once distinguished from 

 all its congeners by the arrangement of the fine striae on the elytra; those in the basal 

 region near the suture "being nearly longitudinal in their direction; those outside them 

 are curved inwards towards the suture behind, while the scratches on the more posterior 

 portion are nearly transverse in direction." The pronotum bears very fine obsolete 

 scratches. Keel of the prosternum short and broad, only i^ times as long as its breadth 

 in the middle, slightly convex transversely, the striae diverging slightly in front. 

 Mesosternum without any impression ; it and the metasternum quite impunctate, the 

 suture between them scarcely visible. Length i mm. Wings not examined. 



In the original description the mention of striae "about the scutellum" must not be 

 taken to imply the presence of any visible sclerite of that name; under a high power it 

 is seen that there is absolutely no visible scutellum. 



Hab. Maui(?). Blackburn (op. cit. p. 226) states "occurs in wood at an elevation 

 of about 4000 ft. on Haleakala, Maui." (Dr Sharp, op. cit. p. 140, states that the type 

 was found by Blackburn in the mountains near Honolulu, Oahu. ) 



