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Published online by Cambridge University Press: 31 May 2012
Cone of the vertex smooth on the margins, apex mucronate. Mesosernum bidentate. Green: labrum, clypeuss and underside of the cone yellow.
Male and, Female. Cone of the vertex standing obliquely forward, apex mucrornate, the minute spine slightly deflexed, especially in the female; the sides parallel from the base a little above the first joint of the antennæ, where they are slightly angulate; not serrated or granulated on the margins; front side has, near the base, a prominent tubercle; there is also a tubercle below this between the antennæ