Note 8 — Chapter ii · THE SPOTTED LARINUS

When completed, on the approach of the nymphosis, the abode of the Larinus is an oval cell measuring fifteen millimetres in length by ten in width.8 Its compact structure almost enables it to resist the pressure of the fingers. Its main diameter runs parallel with the axis of the thistle-head. When, as is not unusual, three cells are grouped on the same support, the whole is not unlike the fruit of the castor-oil-plant, with its three shaggy husks.