278 REY. H. 8. GORHAM ON [June 6, 
PHILHEDONUS RUGULOSUS, sp. 1. 
Niger, nitidus, pube erecta nigra vestitus ; prothorace rufo, plaga 
magna discoidali marginem basalem haud attingente nigra, 
parcius irregulariter punctato,; elytris saturate ceruleis, 
ruguloso-coriaceis ; scutello nigro ; corpore Unive cum pedibus 
nigris; antennis nigris, acute serratis. Long.5'5millim. @. 
Mas, antennis longionibus: acute serratis, capite intra oculos 
inequaliter impresso. 
Femina, antennis brevioribus, minus acute serratis, fronte plana. 
Hab. Willowmore, Cape Colony (Brauwns). 
Rather like P. sericeus. Head, mouth, antenne, palpi, legs, and 
body beneath black. The head is uneven and impressed between 
the eyes, the base is nearly smooth and shining; the antenne have 
the first three joints testaceous beneath, from the fourth to the 
tenth the joints are longer than wide, acutely produced at 
their inner apices. The thorax has a large black and square 
patch on the disk and front margin; this is somewhat produced 
behind, but does not reach the hind margin; the disk is smooth 
in front, but punctured and rugose at the sides. The form is 
like that of P. sericeus, transverse, rounded at the sides and base, 
without angles ; finely margined, and a little elevated in front. 
The disk and the elytra are ‘clothed with long upright black hairs. 
The elytra are of a deep violaceous or indigo-blue, uniformly 
rugulose ; the rugosities are tuberculous. They are widest a little 
before their apices, the apex broadly rounded. In addition to 
the black erect hairs there is a white, shining, pruinose 
pubescence, arranged in fascize (but not very evidently so). 
The legs and underside are wholly jet-black. 
The male has the head unevenly impressed between the eyes, 
the antennze more acutely serrate, and of course the front tarsi 
four-jointed. The elytra cover the abdomen in all of the four 
specimens before me; in the female the segments of the abdomen 
when distended appear narrowly margined with red. 
HEDONISTES, gen. nov. 
Labrum cornewn. 
Tarsi antici quinque-articulati; caput maris eroso-excisum, 
Semine fronte plana; antenne maris articulo basali quinto 
et sexto ampliatis, septimo ad undecimum simplicibus ; femince 
articulis ommibus simplicibus. 
Hab, Africam meridionalem. 
A genus recalling by the curious sexual characters of the 
antennee in the male the genera Zaius from Australia and Collops 
from the New World, and by its excavated and cornuted head 
in the male the genus Hedybius, with which it might have 
been associated; but I think although the enlarged fifth and 
sixth joints of the antenne are only a sexual character, it is one 
so similar to what is found in Laiws and Collops that it will be 
well to keep insects of this family possessing it in a separate 
