173 
Lahiduruhtc, a fumihj of the Dermaptcro. 
widened posteriorly, sides straight ; prozona soniewluit tumid, 
separate<l by a transverse depression from the metazona. 
Meso- and metanota typical. 
Sternal plates typical, pale yellow. 
Legs yellow, femora broadly banded with black ; tarsi very slender. 
Abdomen punctulate, gradually and gently widened towards the 
apex ; sides of 7th, 8tb, and 9th segments in ^ convex but not 
acute. Last dorsal segment quite smooth, shining, transverse, 
with a sharp low keel on each side in correspondence with the outer 
edge of the forceps, and a slight protuberance on each side of the 
hinder margin, in correspondence with the upper edges of the 
forceps; between these two points, tlie hinder margin is subconical ; 
in female similar, but decidedly narrowed apically and simple. 
Penultimate ventral segment broadly rounded, in ^ rather 
obtusely triangular. 
Pygidium narrow, comj)ressed. 
Forceps with the branches remote, stout, trigonal, unarmed, 
straight at first and tapering ; apical third smooth and arcuate ; 
in $ nearly straight, contiguous, stout, trigonal, and tapering. 
Java (c.m.), Buitenzorg (c.in.), Malang (e.rn.), Am- 
barawa (c.m.). 
This species has invariably been considered to be de 
Bormans’ G. javana, but the penultimate ventral segment 
of that species is absolutely distinctive. Under the 
common name of G. javana it has been confused with G. 
electa, but the gradually and gently dilated abdomen and 
longer body give it a totally distinct appearance. 
It is structurally nearest to G. snmatrana ; the deep 
red-black colour, black-banded femora, and pale ringed 
antennae give it a different appearance ; it is smaller in 
size and slenderer in build ; the sculpture of the abdomen 
is coarser; the abdomen also is less pubescent; the forceps 
in G. oblita are arcuate, that is, bent inward at a curve, 
whereas in G. snmatrana, they are more usually bowed, 
that is, bent at an angle. 
This species has a strong superffeial resemblance to 
G. woodwarcli, but differs in the totally unarmed forceps, 
apart from the different penultimate ventral segment of 
the male. 
It appears to be common in -Java. 
De Bormans himself confused it with G. javana, as I 
possess a female which came from that collection under 
that name. • 
