528 FAUNA HAWAIIENSIS 



with pitchy brown legs and antennae, the upper surface with very fine but distinct and 

 numerous punctures evenly distributed, drawn out often into fine rugosities, and in 

 our specimen finely aciculate. There is no special sculpture at the base of the thorax. 

 Length i^ mm. 



We have also two other specimens, with the keel of the prosternum proportionately 

 narrower, and more like that of A. angustistermoii, and the jaunctures on the upper 

 surface not at all aciculate. These therefore vary slightly from the type. Wings not 

 reduced. 



Hab. Maui. All from Haleakala ; the type from 5000 ft. (Blackburn); 5000 ft. 

 and over (nos. 121, 128, 661, Perkins). 



(22) Acritus pulchelhis, sp. nov. 



Sat latus, piceus, laevis, subtile punctulatus ; prothoracis basi in medio rugosa ; 

 prosterno angusto, striis rectis fereque parallelis ; mesosterno impresso, sat rugose 

 punctato ; metasterno subtile |)unctulato. Long, fere i^ mm. 



This species is of the same size as A. montico/a, but slightly broader, with the 

 general surface not rugulose, with the fine punctures more distinct but never aciculate ; 

 with a rugulose area in the mid-basal part of the thorax, giving the appearance of a 

 marked transverse impressed line just in front of the base ; with the keel of the proster- 

 num flat and over 2^ times as long as broad in the middle, the striae straight and almost 

 parallel. 



We have two pairs of specimens, one from Maui, the other from Molokai. The 

 Maui specimens have a well-defined lighter, testaceous, area in the distal half of either 

 elytron ; one of them has marked rugulositics at the bases of the elytra. The punctua- 

 tion of the underside is especially distinct in Molokai specimens. Wrings not reduced. 



Hab. Maui, Molokai. — Maui; Olinda, 4000 ft. iii. 1894 (no. 112). — -Molokai, no 

 particulars. — (Perkins.) 



(23) Acritus angnstistcrnniu, sp. nov. 



Sat late ovalis, testaceus, nitidus, supra subtilissime ]:)unctulatus ac elytris interdum 

 subtilissime rugulosis ; pedibus longis ; prothorace ad mediam basin rugose punctato ; 

 prosterno conspicue elongato ac angusto ; mesosterno impresso, rugoso ; metasterno 

 subtilissime punctulato. Long, circa i^ mm. 



Plate XV. fig. 21. 



This is a somewhat broad long-legged species ; the minute, shallow punctures and 

 rugulosities vary in amount. Across the median basal portion of the thorax is a series 

 of punctures and sculpture, appearing in some aspects as a marked transverse line or 

 depression. The chief character lies in the form of the keel of the prosternum (PI. XV. 

 fig. 22), which is about 3^ times as long as its breadth in the narrowest portion ; the 



