AUSTRALIAN BEES OF THE GENUS EURYGLOSSA. 213 
‘“‘they were all head downwards from 4 p.m until darkness. 
These groups I stayed to watch, and in every case they reversed 
their position to head upwards at dark. In fact, they hardly 
waited for it to get quite dark.’ This habit he has often 
previously noticed. 
I recently turned down some icarus on large plants of 
flowering grasses, upon which they rested each evening in the 
usual way, head downwards, and remained so until darkness set 
in, when they turned round and rested head upwards, which 
position they retained for the night. No doubt other species of 
“blues”’ act in a similar way. 
It is considered that these butterflies rest for the night head 
downwards so as to defeat the attacks of birds which would be 
unlikely to inflict an injury on the vulnerable thorax, and would 
only grasp the wings if they attempted to seize a resting butter- 
fly, and when darkness has compelled the birds to sleep, the 
butterfly can safely resume a normal resting attitude. 
_ Possibly this may be so, but such is mere conjecture, and it 
is most unsatisfactory to theorize on natural phenomena. When 
butterflies have taken up their resting attitudes, it seems 
somewhat improbable that they are attacked by birds to any 
appreciable extent, or very seldom. I cannot remember having 
seen an instance of such, but have occasionally seen birds pursue 
butterflies on the wing, but directly the latter settled with closed 
wings the birds were eluded and gave up the chase. 
AUSTRALIAN BEES OF THE GENUS EURYGLOSSA. 
By T.-D. A. CockERELL. 
Euryglossa calliopsiformis, Cockerell. 
3. Differs from description of female as follows: clypeus all 
yellow except a minute spot on each side; supraclypeal mark large, 
broadly triangular, with a spear-head shaped prolongation from its 
apex; lateral face-marks pointed at end; yellow band on posterior 
orbits rather narrow, its upper end diverging from the orbit; 
antenn long, scape yellow in front; pleura with additional yellow 
markings ; abdominal bands yellow. 
Hab. Mackay, Queensland, at flowers of Leptospermum, 
October, 1898 (Turner). British Museum. This male is easily 
known from that of E. calliopsella by the colour of the scutellum. 
Euryglossa altitudinis, sp. n. 
g. Length 4mm.; black, with the clypeus (but no supraclypeal 
or lateral marks), labrum, mandibles (except red apices), scape in 
front, and tubercles, all light yellow ; flagellum long, light ferruginous 
beneath ; head broad; face with long white hair; front dull; meso- 
