al 
34 Dr. Malcolm Burr’s Revision of the Genus Diplatys. 
emarginations on the penultimate ventral segment, but 
the emarginations are far deeper and stronger than in 
that species, and more rounded, with a consequently more 
prominent median lobe, which has the angles more 
rounded. The form resembles that of D. siva, but this is 
a much smaller and weaker insect. 
13. Diplatys siva, Burr 
Diplatys siva, Burr, (1904°) p. 278 and 283, (1906*) 
p. 387, (1907°) p. 508, (1910!) p. 49. 
This is a large, dull grey-brown North Indian species, 
well characterised by the peculiar form of the penultimate 
ventral segment of the male. 
Type in the Paris Museum. 
14. Diplatys flavicollis, Shiraki 
Diplatys flavicollis, Shir., (1907) p. 104. 
» > Burr, (1909*) p. 339 and 340. 
This species is described by Shiraki from Formosa on 
the model of the old-fashioned descriptions of de Bormans, 
D, flavicollis. 
with practically no reference to structure; so from his 
work alone it is impossible to determine its true position 
with accuracy. 
Fortunately, I possess a male from Taiwan, Formosa, 
which agrees in every respect with Shiraki’s description, 
and I have no hesitation in identifying it as D. flavicollis. 
The chief feature is the very characteristic form of the 
penultimate ventral segment, in the middle of the posterior 
