COLEOPTERA 259 



(5) Thriscothorax modes his, sp. no v. 



Piceo-niger, parum nitidus, palpis pedibusque testaceis, antennis, prothoracis elytro- 

 rumque marginibus elevatis rufis ; elytris subaenescentibus parum nitidis, subtiliter 

 striatis, striis baud punctatis ; prothoracis lateribus rotundatis, basi constricta, angulis 

 posterioribus rectis. Long. 3! — 4 mm. 



This is considerably smaller than T. filipcs, it is a little more deeply striated on the 

 elytra, and the outer striae are less obliterated, seven striae can be counted in addition 

 to the deep marginal stria, the suture of the elytra and its outer margin are red, and the 

 lateral margins aad even the base of the thorax are reddish. The antennae are slender, 

 yellow at the base, darker beyond. The head is rather broad. The thorax is rounded 

 at the sides, and the hind angles are sharply rectangular, the base is moderately punctate, 

 the median channel well-marked, the anterior transverse depression not deep and without 

 distinct sculpture. There is no greater extent of red at the tips of the elytra than what 

 is due to the junction of the red colour of the suture and margins. F"ive specimens. 



Hab. Maui. Haleakala 4000 — 5000 ft. in March and April 1S94 (Perkins). 



(6) Thriscothorax cordaticollis, Blackburn. 



CyclotJiorax cordaticollis, Blackburn, Ent. Mo. Mag. xv. 1878, p. 156. 



The two specimens in the British Museum indicate a species similar to modcstiis\ 

 with less basal constriction to the thorax : the striae not punctate. I have failed to 

 match them with any specimens found by Mr Perkins. A specimen sent me some years 

 ago by Mr Blackburn as this species is apparently a damaged specimen of a JMecyclo- 

 thorax differing very little from M. vulcanits. 



Hab. Maui. Haleakala (Blackburn). 



(7) Tliriscotliorax snbconst rictus, sp. no v. 



Niger, vel piceus, antennis, palpis pedibusque testaceis ; elytris nigris, sutura versus 

 apicem lateralique margine rufis ; thorace haud lato, lateribus rotundatis, basi angusta, 

 constricta, angulis posterioribus rectis ; elytris quinque-striatis, striis subtiliter punctatis, 

 apicem versus profundis. Long. 3^ — 4 mm. 



This little Thriscothorax 's>om^\s\\2X msamhlfts Jllccyclothorax iiiicaiis, but it is readily 

 distinguished by the striae carried to the tips of the elytra ; this also separates it from 

 the T. palustris and modestiis ; in the latter species the striae are visible at the tip, but 

 are not so deep as in subconstrictus, and they are not punctate. 



The transverse anterior impression of the thorax is rather obsolete ; the surface is 

 shining but there are some very indistinct transverse wrinkles on the disc, and the 



