Séance du 18 Juin 1924 
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317 
segment of male genitals with stout bristles on pos¬ 
terior margin. Stigmata of fifth abdominal segment 
of female not visible; this segment coloured red io 
Fig. 1 — Ç S. haemorrhoidalis Mg. 
orange, the tergile with a dorsal cleft on posterior mar¬ 
gin, its marginal bristles a little weaker, but 3/4 
