408 The Philippine Journal of Science 1921 
Genus AMORPHOSOMA Castelnau 
Amorphosoma marmoreus Deyrolle. 
I have determined two specimens as of this species ; one from 
Mount Banahao, Luzon ( Baker 8353), and the other one from 
Butuan, Mindanao ( Baker 8352). 
These two specimens differ slightly in a number of ways, but 
the markings are identical and they are probably only sexes of 
the same species. Deyrolle gives this species as having a wide 
distribution in the Malaysian islands, but the specimens before 
me do not quite agree with his description in regard to the ely- 
tral tips. In his figures 7 he shows this species as having the 
elytral tips strongly spinose at the sutural angles, but in his 
description he gives the following: 
L’extremite qui est tronquee, denticulee et fortement epineuse a peu 
de distance de la suture, cette forte epine disparaissant chez certains 
exemplaires de taille mediocre. 
The specimen from Butuan measures 11 millimeters in length, 
with the tips of the elytron slightly rounded at the angles and the 
margin evenly, strongly dentate, the lamellselike scales on elytra 
quite prominent and with six gibbosities on the pronotum ; while 
the specimen from Mount Banahao measures only 8.5 milli- 
meters in length, the dentations on tips of elytron are larger and 
more separated, the lamellaelike scales on elytra are not very 
prominent, and with eight gibbosities on the pronotum, two 
of which are not very prominent. 
Genus SAMBTJS Deyrolle 
Key to the species . 8 
1. Head with vertex distinctly gibbose S. gibbosus sp. nov. 
Head with vertex not distinctly gibbose 2. 
2. Surface of elytra bicolored - 3. 
Surface of elytra unicolored - 4. 
3. Elytra with a reddish purple spot along lateral margin. 
S. bakeri sp. nov. 
Elytra with irregular black and green designs S. parallelus sp. nov. 
4. Elytra bronzy — - - 5. 
Elytra blue or black 6. 
5. Pubescence on elytra uniform, not forming distinct designs. 
S. confusus sp. nov. 
Pubescence on elytra forming distinct designs, especially on apical part. 
S. ornatus sp. nov. 
7 Ann. Soc. Ent. Belg. 8 (1864) pi. 4, fig. 14. 
8 Sambus auricolor, described by Saunders from Luzon, has not been 
seen by me. 
