246 FAUNA HAWAIIHXSIS 



A most obscure little form ; resembling most T. obscuricolor, but with a shining 

 surface, and broad yellow outer margin on the elytra ; bearing also some resemblance to 

 M. daptinus. but with the thorax not strigose, and the elytra less deeplj- striate. The 

 antennae are obscure in colour, only the basal joint being yellow. Thorax shining ; 

 transverse, much narrowed behind, hind angles obtuse or almost acute on account of the 

 minute prominence for the insertion of the seta : the surface has a just perceptible metallic 

 tinge ; the transversion impression and median channel definite. The elytra are yellowish 

 but each has a very large black patch occupying the greater part of the surface, and 

 leaving the suture pale, as well as the lateral margins ; the striae are deep, and a very 

 feeble punctuation can be traced. The legs are entirely yellow. We have only two 

 examples of this species, but I have recently received a third taken by a friend of 

 Mr Perkins on Haleakala last year. It is a marked variety, very small, and has the 

 black colour of the upper surface very definite w^ithout any brassy tinge, and the striae 

 distinctly punctate. 



Hab. Maui. Haleakala. 4000 — 5000 ft., April 1S94 (Perkins). 



(7) Mccyclothorax angusticollis, Blackburn. 



Cyclotliorax aiignsticollis Hlackburn, Ent. Mo. Mag. xv. 1S77, p. 156. 



One of the smallest forms : red, largely picescent or black, leaving the margins of 

 the thorax and elytra red ; the latter have the striae deep, but the outer one (the seventh) 

 obsolete ; the striae are punctate ; the antennae and legs very short. The thorax is not 

 narrow, but strongly transverse. The species may be readily distinguished from 

 M. piisillus by the colour and by the deep striation. AI. obscitricornis is similar but has 

 the thorax strongly narrowed behind. About 30 specimens. 



H.\B. Maui. Haleakala (Blackburn). Haleakala, 400 — 500 ft., on several 

 occasions in the first half of the year. L'nder stones, in moss etc. (Perkins). 



(8) Mccyclothorax hicolor, sp. nov. 



Rufus, nitidus, elytris late nigricantibus : prothorace fortiter transverso. lateribus 

 rotundatis, basin versus parum angustato, basi lata, angulis posterioribus denticulato- 

 rectis ; elytris profunde striatis, striis subcrenatis sed hand punctatis. Long. 3^ mm. 



This is only half the size of J/, bradycellimis. the species it most resembles. It is 

 broader than J/, ans^usticollis. with longer antennae and leq;s and rather more rounded 

 sides to the thorax, and has deeper striation on the elytra ; the form of the thorax is 

 quite different from that of M. daptinus (which has \er)- deeply striated elytra). The 

 thorax is not greatly narrower than the elytra ; its anterior impression and the median 

 channel are deep, the punctate basal area is small and bears but few punctures. The 



