The Phylogeny of the Hymenopteran Brain

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TextFig. 4A.
TextFig. 4A.

Oblique section from back-top to front-bottom through the brain of Bombus agrorum ♀. Oc.med medial ocellus, Oc.lat lateral ocelli, Tr Trachea, Ca.i inner calyx, Ca.e outer calyx, L.pr Protocerebral lobes, Po.int Pons intercerebralis, P.i Pars intercerebralis, C.c cordon commissural (Viallanes, 1887a). Scale: 1:75 B. Section through the brain of Camponotus herculeanus ♀. Scale: 1:145.

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