182 
ME. J. S. BALY ON SOME GENERA 
following joints thickened and dilated, trigonate, the third 
nearly twice as broad as long, its outer edge strongly com- 
pressed, carinate, the fourth and fifth nearly equal in length, 
each rather shorter than the third, the upper and outer angle 
of the fifth emarginate, bidentate. Thorax rather more than 
one half broader than long ; sides nearly straight from the base 
to the middle, thence slightly rounded and converging towards 
the apex; disk transversely sulcate immediately behind the 
middle, very distantly and minutely punctured, the puncturing 
rather closer on the sides. Elytra oblong, dilated posteriorly, 
convex, transversely excavated below the basilar space, finely 
punctured. 
The three similarly coloured species described above are readily 
separated in the male sex by the position and form of the frontal 
tubercles. The females are not known to me. 
10. Aulacophora fraudulenta, Jacoby, Annal. del Museo Civ. 
di Storia Natur. di Genova, vol. iv. p. 52 (1886). — Auguste oblonga, 
postice ampliata, eonvexa, flava, nitirla, autennis exti orsum infuscatis ; 
oculis, metasterno elytrisque nigris, his fascia lata prope medium 
flava. Long. 3 lin. 
Mas. Capitis fronte, utrinque prope oculum tuberculo oblongo magno, 
longitudinaliter posit.o, instructo ; antenuarum articulis tertio, quarto 
quintoque ampliatis, trigonatis ; abdominis segmento anali trilobato, 
lobo intermedio oblongo-quadrato, apice lilobato, disco leviter longi- 
tudinaliter concavo. 
Sab. New Guinea. 
Front on each side in the S with a strongly raised oblong 
tubercle, placed longitudinally close to the inner margin of the 
eye, apex of the tuberosity torulose, slightly incurved ; antennae 
in the same sex with the basal joint thickened, its outer edge 
concave-emarginate ; the third and two following joints dilated, 
trigonate, the third and fifth equal in length and breadth, the 
fourth longer than either of the two others, but less broadly 
dilated; in the specimen before me, sent by Mr. Jacoby, the 
outer half of the antennas is stained with fuscous (the author 
describes these organs as entirely flavous)*. Thorax nearly 
* The $ of this insect is unknown to me, the specimen sent by Mr. Jacoby 
as belonging to that sex proving to be the J of a similarly coloured species 
having simple antennae. 
