Fig. 9
From: On springtails (Hexapoda: Collembola): a morphofunctional study of the jumping apparatus
The musculature connected to BP1 in Orchesella cincta. Muscles M.IVa-dvm1, M.IIIa-ldvm1, M.IIIa-ldvm2 and M.IIIa-istrm1 (reconstruction of IIa-Va, seen from dorsal). A Muscles M.IVa-dvm1, M.IIIa-ldvm1, M.IIIa-ldvm2 and M.IIIa-istrm1. B Comparative schematic view of the functioning of the muscles connected to BP1 with furca extended and flexed. (1) Posterior region of the 4th abdominal segment. (2) Middle of the 4th abdominal segment. (3) Anterior region of the 4th abdominal segment. (4) Middle region of the 3rd abdominal segment. BP1: basal plate 1; BP2: basal plate 2; BR: basal rods; Rt: retinaculum; M: manubrium