Table 3.

Volumes of Main Neuropil in Four Lepidoptera

Neuropil	Godyris zavaleta Mean volume			Danaus plexippus Mean volume			Heliothis virescens Mean volume			Manduca sexta Mean volume
	abs. (μm3)	% Σ neuropil 1	% Σ midbrain	abs. (μm3)	% Σ neuropil 1	% Σ midbrain	abs. (μm3)	% Σ neuropil 1	% Σ midbrain	abs. (μm3)	% Σ neuropil 1	% Σ midbrain
	Antennal lobe 2	8.540 × 106	4.99	10.29	1.559 × 107	3.14	9.41	1.274 × 107	8.64	11.38	6.780 × 107	8.33	15.80
AOT	1.011 × 106	0.59	1.22	3.659 × 106	0.74	2.21	9.980 × 105	0.68	0.89	4.358 × 106	0.54	1.02
Peduncle + lobes	1.558 × 106	0.91	1.88	9.678 × 106	1.95	5.84	2.750 × 106	1.86	3.42	1.467 × 107	1.80	3.42
Calyx	2.398 × 106	1.40	2.89	1.274 × 107	2.57	7.69	4.760 × 106	3.23	4.33	1.859 × 107	2.28	4.33
Central body	8.099 × 105	0.47	0.98	2.387 × 106	0.48	1.44	1.690 × 106	1.15	1.03	4.415 × 106	0.54	1.03
Medulla	6.957 × 107	40.65	—	2.782 × 108	55.99	—	2.570 × 107	17.42	—	2.800 × 108	34.40	—
Lobula	1.334 × 107	7.79	—	3.506 × 107	7.06	—	7.010 × 106	4.75	—	6.295 × 107	7.73	—
Lobula plate	5.273 × 106	3.08	—	1.791 × 107	3.61	—	2.850 × 106	1.93	—	4.185 × 107	5.14	—
Total midbrain	8.298 × 107	48.48	—	1.657 × 108	33.34	—	1.119 × 108	75.89	—	4.292 × 108	52.73	—
Total neuropil	1.712 × 108	-	—	4.968 × 108	—	—	1.475 × 108	—	—	8.140 × 108	—	—

¹Volumes expressed as a percentage of the total neuropil volume excluding the lamina, which was not measured in H. virescens.

²For Heliothis the AL was measured without the CFN, the data presented are “corrected” to estimated total AL volume using the ratio of total glomerular volume/total AL volume from G. zavaleta. This correction does not affect the results of interspecific analyses.