Table 1.

Individual genic and global genotypic tests of significant isolation relative to host plant (S. altissima or S. gigantea) for allozyme loci assayed for Copidosoma gelechiae in three sympatric populations. (N_alt and N_gig indicate the number of individuals sampled relative to host for each population. Values are p-values (bold indicates significance at p=0.05) and n.s. indicates p>0.1.)

locus	Milaca (Minnesota, USA)	Toronto (Ontario, Can.)	Fredericton (New Bruns., Can.)
Nalt/Ngig	71/66	88/82	44/58
ACOH	0.000	n.s.	0.027
G3PDH	n.s.	0.012	n.s.
HADH3	0.014	n.s.	n.s.
HK	—	n.s.	n.s.
IDH	0.000	n.s.	0.075
LDH	n.s.	0.007	n.s.
MDH	0.001	0.001	n.s.
PGI	n.s.	0.083	0.001
PGM	n.s.	n.s.	0.076
overall (genotypic)	0.000 (${\chi }_{16}^2=52.3$)	0.001 (${\chi }_{14}^2=36.2$)	0.033 (${\chi }_{18}^2=30.5$)
Fst	0.0139	0.0510	0.0015