500 



Pelea in N. Kona, but in a drier locality and a good many 

 miles from the spot where the typical viciniis occurred. 



Plagithmysus frater sp- n. 



Eed, the head above obscure red or reddish black, the face black. 

 Antennae dark red or blackish red. Pronotum entirely red, the median 

 crest appearing more or less darker, and there is a broad, dark, 

 longitudinal band on each side in dorsal aspect, but even here the 

 surface is not black, though darkened. Elytra red, with the usual 

 dark velvety spot in the furcation of the pubescent lines which are 

 subfiavescent ; beneath the dense black hairs, which form the velvety 

 spot, the surface is red as elsewhere. Legs red, the apices of the 

 femora black, the tarsi with very dense snow-white hairs, the hind tibiae 

 with very dense black hairs, which are directed backwards and not long. 

 Pronotum with the vittae on either side of the crest broad, but very 

 feebly developed or indistinct. The hairs being minute and not 

 very dense, entirely different from the vittae of bishopi. Consequently 

 to the naked eye the greater part of the pronotum in dorsal aspect 

 appears greyish on a red surface, the grey color divided by a narrow 

 darker line. Antennae with the setae very dense, black and bristly. 

 The base of the elytra is very densely, rugosely punctured, consitlerably 

 more so than in several examples of hishopi, with which it was directly 

 compared. Size of bishopi. Probably closer to viciinis, which has a 

 black pronotum and differs in other respects. So far as 1 can judge 

 without dissecting, the examples are males. 



Hab. — N. Kona, Hawaii, about 3C0O ft., on Pelea sp. Per- 

 haps no more than a local race of z'icinus. The tvpe is in my 

 collection. 



Plagithmysus decorus sp. n. 



Black, the femora entirely red (except for the j)aler basal stalk) 

 as in P. elegans, the antennae dark red basally, the more apical joints 

 of a dark fuscous color, the setae on the basal joints not strongly 

 developed. 



Pronotum black on about the middle third or more in dorsal aspect, 

 the rest densely covered with minute yellow hairs, the dorsal and 

 lateral vittae of ordinary species having merged into one broad band 

 as in elegans; on the sides beneath this band the surface is bare and as 

 densely punctured as possible. Elytra very densely and rugosely 

 punctuate on the basal part, more so than in vitticollis, which the species 

 considerably resembles in the pattern of spots, and with this sculpture 

 extending farther back, the white spots along the upturned lateral 

 margin much more developed and almost forming a continuous line. 

 Size probably less than the average of vitticollis. 



