I have been done some work for my experiment discussed about FA wing size of Eriborus argenteopilosus Cameron (Hymenoptera: Ichneumonidae) from cabbage field and reared from caterpillar Crocidolomia pavonana (Lepidoptera: Pyralidae).
Eriborus argenteopilosus is one of parasitoids usually parasitizes effectivelly some of cabbage and corn caterpillar such C. pavonana, Spodoptera litura, and Helicoverpa armigera in the field.
I used TPSdig 2 ( Rohlf 2004) program to measure wing size and FA of parasitoid.
I digitized landmark in each dot wing venation BY TPSdig 2 program.
To get the finally FA size, I used formula :
Centroid x = ∑ (x1-xn) / 13 ; Centroid y = ∑ (y1-yn) / 13
Explanation :
x1 = first size dot from X.
xn = n size dot from X.
y1 = first size dot from Y.
yn = Nn size dot from Y.
n = number all of dot.
Distance n = SQRT [ (xn - centroid x)2 + (yn-centroid y)2 ]
Explanation :
xn = size of n dot from X.
yn = size of n dot from Y.
Finally, we can get FA :
FA = │ wide of right wing-wide of left wing │
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