188 
Psyche 
[October 
Nortonia 
of 
5 “ 
0 
“ 0 %. 
Pachymenes 
of 42 
0 
“ 0 %. 
Monohia 
of 52 
0 
“ 0 %. 
Alastor 
of 33 
0 
“ 0 %. 
Pterocheilus 
of 43 
0 
“ 0 %. 
Stenogaster 
of 
5 “ 
0 
“ 0 %. 
Belonogaster 
of 104 
2 
“ 1.9%. 
Ropalidia 
of 160 “ 
2 
“ 1-3%. 
In addition, 217 specimens of Synagris were examined rather 
summarily but none was observed to be stylopized. 
To give detail of the sex, number, and position of the para- 
sites in the various species of hosts would require more space 
than is at our disposal, but the general conditions are indicated 
by the following analyses of the parasitism in four of the better- 
known genera, 
Odyn&rus (sens. lat.). 
51 specimens (29 d\ 22 9 ) 
carrying 1 parasite 
(15d% 35 9,1?) 
13 
“ ( 6d% 79) 
2 parasites 
( 5d% 219). 
3 
“ ( 39) 
3 
( 3cT, 69). 
2 
" ( 2d) 
“ 4 
( 3c? , 59), 
l 
" ( 1<?) 
M 6 “ 
( 2c?, 49). 
70 
“ (380% 32 $ ) 
“100 
(28c?, 71 9 , 1?) 
(< 
Average infestation: — 1.43 parasites per host. 
99 parasites (28 cf, 719) situated as follows: — 42 on the right, 
56 on the left, 1 median ; 
under the 2nd. 3rd. 4th. 5th. abdominal segments, 
cf parasites . 1 21 6 
$ parasites 6 45 19 1 
In this genus of hosts the female parasites prefer a position 
anterior to that of the male. 
