+
+
+
+Parabalta bicornis
+
+ |
+
+
+Parabalta reedii
+/
+Parabalta cristobalia
+
+ |
+
+
+Cx IV: prolateral apophysis |
+bifid, short, diagonally oriented |
+simple, curved tip, points backwards |
+
+
+TrIV: prolateral apophysis |
+small, ax-like |
+
+bilobate, distal lobe is short and parallel to border (
+
+P. reedii
+
+) or large, finger-like, pointing sideways (
+
+P. cristobalia
+
+)
+ |
+
+
+TrIV: apical prodorsal finger-like apophysis |
+large, oriented upwards, inclined medially |
+
+oriented sideways, either short (
+
+P. reedii
+
+), or long and parallel to the former apophysis (
+
+P. cristobalia
+
+)
+ |
+
+
+FeIV: prodorsal basal apophyses |
+1–2, conic + acute granules |
+none |
+
+
+FeIV: retrodorsal apophysis |
+large; followed by small apophyses of decreasing size |
+
+either large (
+
+P. reedii
+
+) or small (
+
+P. cristobalia
+
+), it is only followed by granulation on the medial side
+ |
+
+
+FeIV: proventral row of tubercles / apophyses |
+only a row of tubercles, no subapical apophysis |
+a large subapical apophysis pointing sideways, either alone or with 2–3 smaller ones in a row |
+
+
+PaIV: ventral acute apophyses |
+two |
+
+one (
+
+P. reedii
+
+) or two (
+
+P. cristobalia
+
+)
+ |
+
+
+Ti IV: ventral acute apophyses |
+one basal, three distal, a large gap in between (2–3 rudimentary tubercles may exist) |
+one basal, three distal, in between one or two additional |
+
+
+