550 
Philippine Journal of Science 
1919 
Specimens were also collected on Dinagat Island, and these 
show no appreciable variation from those from Surigao. How- 
ever, the species was not collected on Siargao and Bucas Islands, 
but it appears as if the above species is replaced or represented 
in the last-mentioned islands by a form which I shall designate as 
Pachyrrhynchus virgatus subsp. insulanns subsp. nov. 
Uniformly shiny black, without any spots or markings. In 
general form, stouter in build than P. virgatus, and the elytra 
appear more inflated and more broadly rounded apically. 
Siargao and Bucas Islands (my collector). 
A careful search made on numerous perfect specimens for 
traces of scales or spots resulted negatively. 
Pacliyrrhynchus ardentius sp. nov. Plate I, fig. 7, $ . . 
Glossy, glowing, purplish red with pale green markings and 
spots. Rostrum as broad as long, a strongly pronounced cross 
groove at the middle, from which there extends to the front 
a shallow depression, the lateral edges of which are strongly 
raised. Front densely and finely punctured. Sides of head with 
a scale spot. Prothorax slightly broader than long, with a 
posterior submarginal groove. A small triangular scale spot 
at the middle laterad, and a large oblong patch at each lateral 
margin. Elytra with very faint traces of rows of punctures. 
Each elytron with the following markings: Three spots at the 
base, one of which, near the lateral margin, is large and oblong; 
at the middle a small spot discally and a band extending later- 
ally; along the margin a large oblong spot, almost confluent 
with a small triangular spot at the apex; beyond the middle at 
the suture a small spot; another sutural spot near the apex. 
Between the last-mentioned spots, somewhat laterad, a long dash ; 
and laterad of the latter two other spots. Femora with a scale 
spot apically below. 
Length, 16.5 millimeters; width, 7.8. 
Siargao Island (my collector) . Type in my collection. 
The spots on the elytra in this species seem to vary, since in 
the above-described type, the only perfect specimen I received, 
the second basal spot on the left elytron is absent. 
Paehyrrhynehus absurdus sp. nov. Plate I, figs. 3, 3a, ? ; fig. 4, $ . 
Dark, glossy, glowing red, with bands of pale green scales. 
The sexes pronouncedly different from each other in general form 
and in markings on the prothorax. Rostrum sparsely punctured, 
with a strongly pronounced, oblong depression from the middle 
extending to the front, where it becomes shallow. The depres- 
