112 FAUNA HAWAIIENSIS 



(26) Plagithmysus aequalis Sharp. 



Plagithmysus aequalis Sharp, Ent. Mo. Mag. 1896, p. 273. 



Hab. Kauai ; Mr Perkins procured a very large series of this species at MakaweU, 

 January and February 1897, on Acacia koa. And I have also seen a few specimens 

 from Waimea and Koholuamano. 



This species is dimorphic as regards the colour of the legs, which are either red or 

 black without intermediate states. The individuals with red legs are very numerous. 

 Specimens with red thorax are very rare. The chief variations in these respects are as 

 follows. 



Van /3, pedibus capiteque rufis. 



Var. y, pedibus, capite thoraceque rufis. 



I have not before me any specimens in which the legs are black without the head 

 being so, but it is probable that such specimens occur, and, if so, would form var. a. 



Four individuals found in April 1895 form a variety with shorter thorax, having 

 more rounded sides, with more white pubescence on the upper surface, and the posterior 

 femora a little differently shaped. One of the two originally described females is a very 

 peculiar individual and may perhaps belong to another species. 



(27) Plagithmysus mimroi, sp. nov. 



Rufo nigroque variegatus ; elytris rufis, singulo posterius plaga nitida nigricante, 

 fere aequaliter ubique albido-guttulatis ; thorace albido vittato, femoribus bast flava. 

 Variat thorace femoribusque rufis, vel nigris. Long. 11 — 12 millim. 



(Plate VT. fig. 19; ?.) 



Closely allied to P. aequalis, but with the elytra nearly evenly spotted all over with 

 white flecks of pubescence, there being however a small area in front of the middle 

 densely and finely punctured. There is no definite spot of white on the mesothoracic 

 episterna. The hind legs are very long, the femora moderately thick, and there is 

 extremely little difference between the sexes. 



Hab. Kauai. We are indebted to G. C. Munro, Esq., for the discovery of this 

 species : he obtained si.x specimens of it in July 1897, 2000 ft. above Waimea. 



(28) PlagitJiinys7t,s arachnipes Sharp. 



Plagithmysus arachnipes Sharp, /. c. p. 274. 



(Plate VI. fig. 20; ?.) 



Hab. Kauai. May 1895. Perkins. On Acacia koa. 



