( S4(j ) 
IX. Third Paper on the Tetriginae (Orthoptera) in the 
Oxford University Museum. By J. L. Hancock, 
M.D., F.E.S. 
[Read March 2nJ, 1910.] 
Plate XLIX. 
The present studies are mainly founded on a series of 
forty-seven specimens of Tetriginae (Orthoptera) recently 
acquired by the Oxford University Museum. I am indebted 
to Professor E. B. Poulton and Mr. R. Shelford for the 
privilege of examining them. They have enabled me to add 
supplemental data to my two former papers published in 
the Transactions of the Entomological Society of London. 
These studies are made still more complete by the 
inclusion of notes founded on material in my private 
collection. 
The section Cladonotae is represented by ten known 
genera in Africa; the following diagnostic table based on 
their distinctive characters may prove useful in separating 
them. Bolivar* recognised in his “Essai” (1887) species 
belonging to three genera, namely : Xcrophyllum, Trachy- 
tettix, and Pantelia. Later Karschf (1890) added species 
of Acmo-phyllum, Trypophylhim, Hippodes, Hypsaeus, and 
still later Piezotettix,^ making eight genera recognised up 
to that time. I have recently added another genus, Clado- 
ramus,^ and in the present paper supplemented a new one, 
Medinophylluin, bringing the whole number up to ten now 
known and differentiated in the table herewith presented. 
In each genus the type is given. The genus Hypsaeus 
and Piezotettix also occur in the Oriental region, while the 
other eight genera are confined to Africa. 
* Ann. Soc. Entorn. Belg. xxxi, 1887. 
I Entoniol. Nachricht. 1890. 
J Berl. Entom. Zeit., xxvi, p. 196. 
§ Trans. Entom. Soc. London, p. 217, 1907. 
TRANS. ENT. SOC. LOND. 1910.— PART III. (NOV.) 
