40 Dr. Malcolm ee Revision of the Genus Diplatys. 
Antennae with about 25 segments, yellowish, 3rd segment rather 
short, barely twice as long as broad, 4th and 5th very short, no 
longer than broad, 6th a little longer, 7th about equal to 3rd, the rest 
gradually lengthening. 
Head brick-red ; frons tumid, occiput depressed, the posterior 
keels sharp and distinct. 
Pronotum yellowish red, a little narrower than the head, about as 
broad as long, convex anteriorly, narrowed posteriorly, the sides and 
posterior margin straight, the angles rounded. 
Elytra very ample, tawny near the base, darker towards the 
apex. 
Wings long, pale straw-coloured. 
Legs slender, yellowish. 
Abdomen brick-red. 
Last dorsal segment scarcely wider than the abdomen, about as 
wide as long. 
Penultimate ventral segment truncate posteriorly, somewhat 
narrowed towards the apex, the angles themselves rounded. 
Forceps brick-red, darker at the base ; depressed but triquetre, 
subcontiguous and parallel, attenuate towards the apex, and gently 
incurved at the apex; inner margin finely denticulate in basal 
portion. 
Keypr: Cairo. 
This species resembles D. jacobsont and D. rufescens in 
the straight forceps, narrow anal segment, and truncate 
penultimate ventral segment with rounded angles; it 
differs from the former in having the penultimate ventral 
segment distinctly narrowed apically, in this respect some- 
what approaching D. rufescens, but in that species the 
angles are not rounded. The pronotum is a little shorter 
and more rectilinear than in D. rufescens, and the colour 
red or tawny. It is decidedly larger than D. jacobsonc. 
The African species which come nearest to it are 
D. licolor (aw which the pronotum is rounded), D. vosseleri 
(a much larger, darker, and more robust insect), but in 
both these the penultimate ventral segment is more or less 
sinuate. 
Type in Madrid (?). 
26. Diplatys jacobsoni, sp. n. 
Statura minore; segmentum ultimum dorsale abdomine vix 
latius ; segmentum penultimum ventrale rectangulare, truncatum ; 
orcipis bracchia recta, depressa ¢. 
