On the Genera of Hapalide. 247 
A smaller and less robust species than the last, but 
agreeing with it in the absence of apical abdominal spines. 
Phanerotoma nova-guineensis, Szép. 
Phanerotoma nova-guineensis, Szép. Termes. Fiizetek, xxiii. p. 59 
(1900). @. 
A single specimen from Mackay, Queensland, taken in 
August 1900, answers well to the brief description of this 
species. 
Phanerotoma leeuwinensis, sp. n. 
do. Brunneo-ochraceus ; mesonoto lateribus, mesopleuris, segmento 
mediano, segmentisque dorsalibus lateribus nigris; segmento 
dorsali tertio fusco, pedibus pallide testaceis; tibiis posticis basi 
albids apice pallide brunneis; alis hyaliuis, venis fuscis, 
pie 
wung, 2°5 mm. 
3. Antennze 23-jointed, a little longer than the insect ; 
the whole surface finely granulate, clothed on the head and 
thorax with very short and delicate white pubescence ; 
sutures between the tergites finely crenulated, the third 
tergite distinctly longer than the second. Recurrent nervure 
interstitial with the first transverse cubital nervure; first 
abscissa of the radius as long as the second, but distinctly 
shorter than the second transverse cubital nervure. Median 
segment without a carina. Posterior ocelli a little further 
from the lind margin of the head than from each other, 
Hab. 8.W. Australia, Yallingup (Zurner), November 
1913. 
Hasily distinguished from nova-guineensis by the very 
different shape of the second cubital cell ; in that species, as 
in most of the species of the genus, the second abscissa of the 
radius is much longer than the second transverse cubital 
nervure. ‘The colour is probably variable as to the extent of 
the dark markings. 
yiP XXVII.—The Genera of Hapalide (Marmozets). 
Mf 
By R. I. Pocock, F.R.S. 
Introduction. 
MANy attempts have been made in the past to classify the 
marmozets generically, notably by Wagner, Lesson, Reichen- 
bach, and Gray; but the distinctive characters employed 
have appealed so little to the judgment of modern zoologists 
