1927] 
Notes on the Strepsiptera and their Hosts 
189 
Polistes. 
29 specimens (3d 1 , 26$)carryin g 1 parasite (21 cf, 8$). 
11 “ (Id 1 , 10 9) “ 2cf parasites (22 cf). 
2 “ ( lcf, 1 9) 
6 “ ( 6 $) 
6 “ ( 6 9) “ 
2 “ ( 2 9) 
2 “ ( 2 9) “ 
.1 “ ( 19 ) 
2 “ ( 2 9) “ 
1 “ ( 19 ) 
3 “ ( 3 9) 
65 “ (5cf, 60 9) 
29 
“ 
(4 9). 
lcf, 1 9 
“ 
( 6cf, 69). 
3 cf 
a 
(18 cf). 
2 cf , 1 9 
u 
( 4<f, 2 9). 
lcf, 2 9 
a 
( 2cf, 49). 
4cf 
u 
( 4cf). 
5 cf 
a 
(.10 cf). 
7 cf 
a 
( 7 cf ). 
larval 
a 
118.. larval 
a 
(94 cf, 24 9). 
Average infestation of wasps carrying adult parasites: — 1 .9 para" 
sites per wasp. 
118 parasites (94 cf, 24 9) situated as follows:- — 54 on the right, 
63 on the left, 1 median; 105 dorsal, 3 lateral, 10 ventral; 
under the 2nd. 3rd. 4th. 5th. abdominal segments, 
cf parasites 1 44 41 8 
9 parasites 1 2 21 
The normal position for the male is here obviously under the 
3rd. and 4th. segments. In the eight cases in which a male was 
found under the 5th. segment, only once was it the only parasite; 
twice it was one of two, twice one of three, once one of four, and 
twice one of five parasites, and may be considered to have been 
crowded from its normal position. On the other hand, the 
female usually occurs under the 5th. segment; where it was 
under the 3rd. it was one of three parasites, where it was under 
the fourth it was one of two or one of three parasites. This con- 
dition, in which the males normally lie anterior to the females in 
the body of the host, is exactly the opposite of that in Odynerus 
where the females lie anteriorly, the males behind. 
Chloralictus 
313 specimens (276 cf, 37 9 ) carrying 1 parasite. 
161 
‘ (142c?, 19 9) 
2 parasites. 
45 
' ( 44c?, 19) 
“ 3 
1 
‘ ( 1c?) 
“ 4 
520 
(463 cf, 57 9 ) 
774 
Average infestation: — 1.5 parasites pei; host. 
