species of the genus Phalacrognathus. 9.25 
p. 181, the 3 being described on p. 474, with a descrip- 
tion of the genus. The generic characters which he 
gives as separating it from the genus Lamprima are as 
follows :—‘ Mandibles very long, porrect, and curving 
upwards, smooth, glabrous, and unarmed on the lower 
and inner edges. Basal joint of antenne scarcely cla- 
vate, and as long as the other joints combined. Fore 
tibie of ¢ without a foliate spur.” To this must be 
added :—‘* # differs from ? in having no tibial spurs to 
the medial and hind tibie. The @ is more densely 
punctured than the ¢, and the anterior cox are sepa- 
rated and do not touch.” 
As the trophi have not yet been examined, I cannot 
say whether it differs from Lamprima in those cha- 
racters. 
P. westwoodi, mihi, differs from muelleri, McLeay, 
in the following particulars:—Form broader, anterior 
sides of lateral margin of thorax more emarginate and 
curved upwards, increnulate and smooth ; teeth at the 
inner base of mandibles are more even, and the inner 
edge of mandibles is straight. The posterior margin of 
thorax is more evenly marked. 
A. Mandibles in g long, curved, with two horns, one at 
base and one at apex, short, as long as head and 
thorax together. Bright vivid golden green; 
femora very much thickened, sides deflexed at 
apex, anterior cox not united. Elytra nar- 
rower at apex, thickly punctured in 9? , glabrous 
and smooth in g. Scutellum roundish trian- 
gular. Posterior tibia armed with two spines in 
9, simple in g; g has no foliate spur to an- 
terior tibie. 
AA. Thorax with a very rounded and dilated emargi- 
nation on apical half of lateral margin; apical 
half, crenulate. Posterior lateral margin crenu- 
late, inner edge of mandibles smooth, not in- 
dented, and the teeth at base of inner margin 
even J. be 56 or re westwoodi, Shipp. 
BB. Thorax with a very slight rounded, scarcely di- 
lated, emargination on apical half of lateral 
margin deeply crenulated ; inner edge of man- 
dibles not smooth, slightly indentated. The teeth 
at the base of inner margin uneven .. muelleri, Mcleay. 
