COLE OPT/IRA 527 



Aci-itns iicpos, \ar. ? 



A single specimen from Molokai agrees in all other respects with A. ncpos, but 

 has the presternum proportionately longer ; the keel being three times as long as it is 

 broad in the middle. This character brings the specimen near to A. similis (also from 

 Molokai), which has however numerous elytral punctures not at all confined to a small 

 part of the disc. The wings are not reduced. 



Hab. Molokai, 4500 feet and upwards, 11. iv. 1893 (no. 159, Perkins). 



(20) Acritiis similis, sp. nov. 



Oblongo-ovalis, piceus, nitidus ; fronte .sat crebre punctato ; prothorace crebre 

 punctato, ante basin in medio linea impressa parum arcuata ; elytris crebre ac sat fortiter 

 punctatis ; prosterno longo, angusto, striis subparallelis ; mesosterno parum impresso, 

 hoc et metasterno crebre et sat fortiter punctatis. Long, ij, mm. 



The single specimen differs from its allies in having fairly numerous and strong 

 punctures on the frons. Prothora.x and elytra are frequently and moderately strongly 

 punctured, in addition to which there is a basal thoracic rugose area, bounded in front 

 by an impressed line. The keel of the prosternum is long and narrow, about three 

 times as long as its breadth in the middle ; the striae are very little curved, the base 

 slightly broader than the front margin. Metasternum slightly impressed ; it and the 

 metasternum numerously and fairly strongly punctured, the first abdominal segment less 

 strongly punctured. 



The conjunction in one individual of the fairly strong punctuation, basal thoracic 

 sculpture, and long narrow prosternum, distinguish this specimen from any others that 

 we have received. Wings not reduced. 



Hab. Molokai, 11. iv. 1893 (Perkins). 



(21) Acritus niouticola, Blackburn. 



Aeletes monticola Blackburn, Tr. Dublin Soc. 111. 1885, p. 130. 



I have e.xamined Mr Blackburn's type of this species. We have one specimen 

 which can without hesitation be referred to it. The keel of the prosternum is long, but 

 proportionately broader than in A. angustistermim, being between 2\ and 3 times as long- 

 as its breadth in the middle : the greater proportionate breadth is largely due to the 

 striae being much more nearly parallel than in A. angustisternitni, in which species they 

 curve conspicuously towards one another in the middle portion. 1 he mesosternum is 

 impressed, with very fine shallow punctures, but not rugose. Blackburn could find no 

 punctures on the metasternum, but the microscope reveals numerous very fine punctures 

 in our specimen. The form is rather narrow and convex, the colour is very blackish 



F. H. III. 6^ 



