568 FAUNA HAWAIIENSIS 



(5) Dies tola sciilptui-ata, sp. nov. . 



Angustula, nigra, hand depressa, omnium fortiter profundeque punctata, elytris 

 rugosis ; antennis elongatis, pedibus rufis. Long. 3^ mm. 



Plate XVI. fig. 17. 



Antennae long and slender, 3rd joint about three times as long as broad, loth 

 joint not transverse ; head narrow, very coarsely punctate. Thorax narrow but trans- 

 verse, very strongly punctate, deeply depressed on the disc. Elytra with remarkably 

 deep, coarse rugose sculpture. Abdomen with the punctuation more distinct than usual 

 in the Hawaiian Diestotae. Mesosternum not carinate. 



We have received only two examples of this remarkable little insect. Both are 

 females. It has a good deal the facies of the genus Boliiochara. 



Hab. Hawaii, Hilo, 2000 ft. on decaying stem of tree Lobelia, i. 1896 (Perkins). 



(6) Diestota inontana, Blackb. 



Diestota montana Blackb., Tr. Dublin Soc. sen 2, in. p. 121. 



Subdepressa, nigra, antennis, palpis pedibusque testaceis ; pube minus brevi 

 vestita, subopaca, capite, thorace elytrisque fortiter profunde punctatis ; mesosterno 

 subtilissime carinato. Long. 3 mm. 



Head very coarsely and densely punctured. Antennae yellow, but little infuscate, 

 rather short and stout, penultimate joints slightly transverse. Thorax strongly trans- 

 verse, but much narrower than the elytra, a good deal narrowed behind, extremely 

 densely, rather deeply and moderately finely punctate. Elytra much longer than the 

 thorax, rather coarsely, deeply punctate, the punctures on the disc of each sufficiently 

 distant to leave well-marked, shining interspaces. Abdomen sparingly punctate. Legs 

 obscure yellow, tibiae strongly pubescent. 



Terminal dorsal plate in the male with a rather long slender slightly curvate 

 projecting tooth on each side, and between these with seven or eight very minute, 

 regular serrations. 



This is nearest to D. carinafa, but is less depressed and less dull, has a much 

 longer clothing of hairs, and a coarser punctuation. The carina of the mesosternum 

 is elongate, though very slightly elevated. We have received about 2 1 specimens, 

 most of which are however very much broken. It varies but little ; occasionally the 

 antennae are infuscate or blackish, which may be due to post-mortem change rather 

 than variation. I believe the type (or the portion that remains of it) of D. moniana 

 belongs to this species. 



Hab. Hawaii : Hilo, 11. 1897 ; 1800 ft. xii. 1895 ; on decaying stem of tree 

 Lobelia, 2000 ft. i. 1896 ; (Perkins); Waimea, Hawaii (Blackburn in Brit. Mus. ex coll. 

 Sharp). 



