Fig. 6

Expression of hth2 in prosomal appendages of Cupiennius salei. a Weak expression of Cs-hth2 in the chelicera during late inversion. Expression of Cs-hth2 in the pedipalp (b) before inversion, (c) at early inversion and (d) at late inversion. The arrow points to the proximal Cs-hth2 ring which broadens during inversion (indicated by the bar). The arrowhead points to the medial Cs-hth2 ring, which broadens during inversion (bar in (c)) and splits at late inversion (two arrowheads in (d)). The asterisks mark the distal Cs-hth2 ring. Expression of Cs-hth2 in the walking legs (e) before inversion, (f) at early inversion, (g) at late inversion, and (h) at dorsal closure. The arrows mark the proximal Cs-hth2 ring and its descendent. The arrowheads mark the splitting medial Cs-hth2 ring and the asterisks mark the splitting distal Cs-hth2 ring. Bars always indicate broadening of the ring expression before splitting