146 
not as pronounced the w orld over as has been thought. The two 
Philippine Cerceris studied show that some of these insects may 
wander well outside family limits in selecting beetles. 
Cerceris angularis Cockerell. 
Length 16-21 mm.; black and red; wings dark. 
This fine, stoutly-made wasp (Fig. 76) haunts the shaded 
ravines of the Makiling forest, where I found it nesting as a 
well-defined and old-established colony, in a vertical bank com- 
posed of a sort of fine loose conglomerate, whose lower portion 
had an area perforated here and there by the wasps’ tunnels. 
De 
TS ’ mH t 
DEAS ime Ml Us Be Me i eT ape ri 
Wp HW N j | amt nt i 
ee (gi. \ & WZ fie oD) 


ia mnt ) an > UT mown 
ti a a as py 
Fig. 76. Cerceris angularis, 9, X 3. 
My attention was first drawn to this nesting site on seeing a large 
wasp flying heavily laden with a brilliant blue- black and red long- 
horn beetle which she clasped beneath her. Subsequently I saw 
other beetles, different species of Lamiinae, in transport to this 
bank. 
Setting to work with the trowel revealed at a horizontal depth 
of 6-12 inches several fresh Cerceris burrows and a quantity of 
old and deserted cells, containing cocoon and beetle debris. The 
galleries appeared to be largely stuffed with soil, but I located 
numerous cells quite close together; this would indicate that 
each female had a many-celled tunnel. These cells were of 
