134 Psyche [August 
by Jacoby in his description; unless the specimen is held at a cer- 
tain angle the points spoken of are easily overlooked. 
Frontalis, Baly, |. c., p. 182, describes the third joint of the an- 
tenn “‘twice as broad as long.”” Comparison with a specimen in 
my collection labeled “‘type ex Baly”’ seems to show the words to 
be accidentally transposed so they should read “twice as long as 
broad.” : 
Borrei Baly (pectoralis Jac) is described as having the thorax 
impunctate (Ann. Mus. Gen. 1886, p. 50); the types now in my 
collection all have the surface near the anterior angles punctured, 
so the description should read, “‘impunctate except the anterior 
angles.” Mr. Blackburn in describing his A. Richmondensis Proc. 
Zobl. Soc. N. S. W. vol. v, 1890, p. 360, relies upon Mr. Jacoby’s 
description to separate the two forms, which seem identical; in 
Mr. Jacoby’s second collection he has under the name pectoralis 
specimens from N.S. W. (square purple label) which exactly agree 
with the description of Mr. Blackburn’s species. 
A. celebensis Jac. 1. ¢., p. 52, typically has basa] and ante-apical 
spots, what seems an extreme variety, has the elytra entirely black, 
except for a small flavous spot at the apex, or a slight margin in 
the middle of the side, the latter very like (flavo-marginata Duv.). 
All come from Toli-Toli, No. Celebes (Fruhstorfer). 
Aulacophora blackburni sp. nov. 
Reddish, castaneous, labrum, face and antenne flavous, mandibles, eyes, tibize 
and tarsi blackish, femora fuscous at apex, the joints 3, 4, 5 of the antenne dilated 
in the male like denticornis Jac. 
Type: 1 & Manila (coll. Bowditch). Length, 5 mm. 
Head impunctate with two almost circular, deep fovee, one on either side of the 
vertex above the eye, antenne a little more than half the length of the body, first 
joint clavate, second joint very small, rounded, with a minute point externally in 
the middle, third joint in the shape of a long pointed perpendicular tooth, the fol- 
lowing two joints broadly dilated acutely pointed at their anterior angles, the fol- 
lowing joints elongate nearly equal, thorax twice as broad as long, finely punctured, 
very sparsely and finely on the disk, sulcation nearly straight, abbreviated on either 
side, elytra strongly depressed below the base, showing very lightly punctulate, 
last abdominal segment longitudinally lightly concave or sulcate. 
The above specimen was in the second Jacoby collection mixed 
with examples of s¢milis Oliv. Denticornis Jac. is the only other 
species known to me with the peculiar dentate antennal third 
joint, and this form should be placed next it. 
