19U7J 
Barlli, XcsfiiHj Habits of Oori/lcs vuiialicul<ilns. 
147 
NEST NO. 4. 
July 17th, 1907. Nest found at the base of a tussock of 
grass. Wasp came at 9 : 47 : 10 with a hopper ; came again at 
9 : 54 : 10 with hopper. 
Entered at 9: 54: 45. 
Came, 10:21:00, with hopper; entered, 10:21:20; out, 
10: 21 : 32 ; away, 10: 21 : 45 ; closing rather careful. Locality 
study none. 
Came, 10:28:28, with hopper; entered, 10:28:35; out, 
10:28:55; away, 10:29:6. A few scratches. Locality study 
none. 
Came, 10:32:28, with hopper; entered, 10:32:37; out, 
10:32:40; away, 10:33:00. A few scratches. Locality study 
none. 
Came, 10:48:10, with hopper; entered, 10:48:15; out, 
; away, 10:48:20. A few scratches. Locality study 
none. 
Came, 11:13:10, with hopper; entered, 11:13:16; out, 
11:14:00; away, 11:14:2. A few scratches. Locality study 
none. 
Came 1 1 : 40 : 00, with hopper, and entered an Aphilanthops 
frigidus nest which was in the building close besides its nest. 
Seemed much puzzled by the change in the surface which the 
ejected sand of the Aphilanthops made. Hunted around, scratch- 
ing here and there, and finally found the entrance. 
Returned to post of observation at i p. m. Nest was very 
well closed. 
Came, i : 59 : 30, with hopper ; entered, 2 : 00 : 00 ; out, 
2 : 2 ; 00 ; away, 2 : 2 : 20. Rather careful closing. Locality study 
none. 
While the wasp was in the nest a Nysson fidelis (Cres.), iden- 
tified for me by Mr. Viereck) started to enter the open nest but, 
becoming aware of the presence of the owner, backed out and 
flew to a distance of a foot, there resting quietly on the sand and 
