Three Genera of Papuan Passalid Coleoptera. 
By F. H. Gravely, M.Se., Asst. Supdt., Indian Museum!'). 
With six figures in the text. 
THE three senera of Passalidae, which form the subject of this 
paper, belong to the sub-family G@naphalocneminae (see GRAVELY, 1913). 
During a visit to the Hamburg Naturhistorisches Museum I have 
been engaged on a revision of the genera of this subfamily; and I have 
to thank Prof. KRAEPELIN and the staff of the Entomological section of 
this museum for their kindness in permitting me to work there, and giving 
me free access to all their collections. Through the kindness of the 
authorities in the Berlin Kgl. Zoologisches Museum, the Deutsches 
Entomologisches Museum, the Stuttgart Kgl. Naturaliensamm- 
lung, and the British Museum, I have received from these museums 
fine series of specimens of Gnaphalocneminae for examination, and I take 
this opportunity of thanking them for their help. 
For a complete revision of the species of this subfamily much more 
time that I can at present devote to it would be needed. But as a new 
genus is required for the species trzgonophorus, ZANG, which was doubt- 
fully referred by its author to the genus Kaupiolus, a fuller description 
of this than has yet been published appears to be called for. The genus 
Hyperplesthenus, KUWERT, is also very imperfectly described, so much so 
that HELLER has failed to recognise in the species gracilis, which he 
doubtfully referred to the genus Labienus, KAUP, another member of it; 
so as I have before me the types both of KUWERT’s and of HELLER’S 
species, as well as a specimen of a new species, it seems desirable that 
all three forms should be described together here. And to the account 
of these two genera I am adding an account of the small genus Omegarzus, 
KUWERT, of which I have before me examples of both the known species, 
neither of which has yet been adequately described. 
Genus Kaupioloides, n. gen. 
Anterior margin of head approximately symmetrical; outer tubercles 
not acute, but scarcely truncate or complex, about as far from oneanother as 
') Published by permission of the Trustees of the Indian Museum. 
