Table 6. Cyanogenesis in flea beetles and Heliconius: μM of HCN gas produced by crushing.
Species	# insects, pooled into one sample	pooled weight (mg)	μM HCN/g insect	(limit of detection)
Yellow-tibia Parchicola	7	18	0	<0.106
Monomacra violacea	10	30	0	<0.064
Ptocadica bifasciata	5	37	0	<0.052
Red Ptocadica	6	35	0	<0.054
Parchicola DF-2	7	11	0	<0.176
Red Pedilia	6	88	0	<0.023
Red Pedilia larvae	9	132	0	<0.015
Heliconius sara adults	2	68	.415
H. sara larva	1	136	.892