COLEOPTERA 103 



Allied to C. pennatus, but with shorter legs, and more abrupt club to the posterior 

 femora. Thorax strongly cristate, with an abrupt anterior vertical elevation, and a well- 

 marked posterior elevation bearing two carinae. The colour of the elytra varies, it is 

 usually blackish, but is sometimes yellow along the outer margins ; the white pubescence 

 is more dense in the male than in the female ; the denuded spaces are densely and 

 finely punctured. The femoral club is very dark, in abrupt contrast to the pallid stalk, 

 and it is variegated with white pubescence which is much more extensive in the male 

 than it is in the female ; in the latter sex the club is only slender, and is not abrupt. 



Hab. Hawaii, Kona, 3000 ft. March 1896. A small series of eleven specimens, 

 unfortunately much broken. Attached to Acacia koa. 



( 1 2) Clytarlus longipes, sp. nov. 



Gracilis, dense subtiliter punctatus, opacus ; mas rufus, elytris parce albido-vestitis, 

 ante medium fascia angulata denudata, pedibus testaceis, femoribus clava elongata rufa ; 

 femina supra fusca, thorace plus minusve evidenter rufo-vittato, elytris tenuiter albido- 

 vestitis, haud signatis ; pedibus fuscis, femoribus basi testacea. Long. 6 — 8^ millim. 

 (Plate VI. fig. 4 t.) 



This 'species exhibits considerable difference between the sexes. The male to a 

 certain extent reminds one of Plagithniys2is both in form and colour, while the female is 

 extremely similar to certain females of C. obscuriis. The thorax is scarcely at all 

 cristate, but has a well-marked elevation in front, and two behind the middle, it is very 

 densely punctate, and has very little pubescence ; it is red in the male, black, obscurely 

 striped with red in the female. The elytra are finely, very densely punctured, quite 

 dull. In the male they are red, with an angular space covered with white pubescence 

 about the scutellum, and also with the apical half bearing a good deal of white pubes- 

 cence. In the female they are nearly black, red only at the basal margin, and there is 

 white pubescence scantily distributed all over them and not forming a pattern. The 

 legs are very different in the two sexes ; in the male the middle femora are shaped as 

 in Plagithmystis, but the hind legs are those of Clytarlus, with a rather long club : in 

 the female the middle and hind legs are long and slender, with long slender clubs to the 

 femora. 



This species was found in sufficient numbers to make it probable that the sexual 

 distinctions are fairly constant. It appears to have been found in company with 

 C. obsciirus, and some of the females of the two are so similar that comparison of the 

 form and length of the legs is necessary to distinguish the most similar examples ; while 

 between the males of the two species there is but little resemblance. 



Hab. Kauai ; thirty specimens. On Acacia koa. 



