MB. J. S. BALT ON SOME SPECIES OP GALERUCINiE. 
15 
Foem. Abdominis segmento anali apice rotundato, medio processu ob- 
longo retrorsum producto armato ; pygidio apice emarginato. 
Sab. Gilolo ; Amboyna (Wallace). 
Antennse filiform. Thorax nearly twice as broad as long ; sides 
parallel from tbe base to beyond the middle ; disk convex, deeply 
impressed with a large transverse excavation, which terminates on 
either side some distance before reaching the lateral margin ; this 
excavation is less deeply impressed in the female ; in this sex on 
either side, between the excavation and the lateral border, is a 
small fovea. Elytra oblong, dilated posteriorly, convex, finely 
and rather closely punctured. 
20. Aulacophora Wallacii. Subelongato-ovata, postice ampliata, 
convexa, flava, nitida, pectore abdomineque nigris, scutello femoribus- 
que posticis quatuor nigro-piceis ; thorace transversim sulcato ; ely- 
tris subnitidis, minute punctatis. Long. 4 lin. 
Mas. Thoracis sulco medio profunde excavato ; antennis filiformibus, 
articulo prime sat valde incrassato ; abdominis segmento anali tri- 
lobato, lobo intermedio oblongo, profunde excavato. 
Foem. Abdominis segmento anali apice emarginato, incisuril transverso- 
quadrata, basi angulato-producta. 
Sab. Timor (Wallace). 
Antennse filiform, about four fifths the length of the body, 
basal joint strongly thickened in the male ; anterior half of 
labrum nigro-piceous. Thorax nearly twice as broad as long; 
sides more or less distinctly sinuate and slightly diverging from 
the base to beyond the middle, thence obliquely rounded towards 
the apex ; upper surface finely but distinctly punctured on the 
sides, impressed across the middle with a nearly straight trans- 
verse sulcation, which is of nearly equal depth for its whole course 
in the female, but which is much broader and more deeply exca- 
vated on the middle disk in the male. Elytra subnitidous, not 
distinctly excavated below the basilar space, minutely punctured. 
This insect in coloration closely resembles A. similis, but 
the four posterior thighs alone are nigro-piceous, the middle disk 
of the thorax is more deeply excavated in the male, and the 
emargination at the apex of the abdomen in the female is of an 
entirely different form. I only know three specimens, two males 
and one female, all from Timor. 
21. Aulacophora cornuta, Baly , Gist. JEnt. ii. p. 445. 
Oblonga, postice paullo ampliata, convexa, flava, labro, pectore abdomi- 
