646 FAUNA HAWAIIENSIS 



(i) Plagith7)iysus giffardi Perkins'. 



P. giffardi Perkins, Proc. Hawaiian Ent. Soc. i., p. 96. 



V^ery closely allied to P. sidphuirscens, but the hair is whitish instead of yellow. 



Hab. Hawaii, Kilauea (Perkins). 



(2) Plagithmysus fractus, sp. nov. 



Black, the base of the femora, the lower part of the sides of the pronotum, and the 

 sternum red, the elytra with a fulvescent spot on each at the base, these spots separated 

 by the dark suture, and not reaching the sides of the elytra outwardly. The antennae 

 show a very faint reddish tint in part and the dull red colour of the femora shades into 

 the black of the thicker portion. Elytra somewhat evenly covered with grey pubes- 

 cence, so that the usual furcate mark is less distinct than usual. Thorax excessively 

 densely sculptured and dull with a number of transverse ridges, some represented by 

 raised tubercles only, the flanks smooth and shining hardly punctured below. Elytra 

 very densely punctured all over, except on the humeral prominences, the furcate 

 pubescent mark delimited by obscure longitudinal ridges outwardly and a black, less 

 pubescent area at the base. 



This species resembles only P. cuncatiis of Oahu and is probably of the same 

 average size. 



Hab. Molokai ; many fragments found in a decayed tree below the forest proper, 

 but only one specimen worth taking, was amongst these. R. C. L. P. 



(3) Plagithmysus immundiis, sp. nov. 



Z Ferrugineus, femorum basibus testaceis ; thorace vix pube pallida ornato, elytris 

 maculis valde irregularibus pubescentiae pallidae vix ornatis. Long. 8 — -14 mm. 



% Variabilis. Piceus, femorum tibiarumque basibus testaceis, tarsis fusco-testaceis ; 

 prothorace obsolete bivittato, elytris pube pallida irregulariter ornatis, basi interdum 

 testaceo. Long. 8 — -14 mm. 



This is an aberrant Plagithmysiis somewhat approximating to Clytarlus. It is very 

 variable, especially in the female sex, but there is always a great difference between the 

 sexes as regards the general colour. It is also a connecting link between Clytarlus and 

 Plagithmysus ; the posterior legs of the male are shaped like those of Plagithmysus, 

 though the apical portion is shorter and the basal part longer than in normal Plagith- 

 mysus. In the female the more slender legs approximate greatly those of the same 

 sex of Clytarlus pennatus. 



' The species enumerated in this supplement by numbers prefixed are additions to the fauna. 



