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The publisher would like to draw the reader's attention to an error in the following article:

Watari Y (2003) Phase-shifting effects of a light pulse interrupting scotophase on locomotor activity rhythm and photoperiodic time measurement for diapause in the onion fly, Delia antiqua. Entomological Science6, 229–235.

On page 232, Figure 3a contained an error. A 1 h light pulse was missing at 9 h after lights off. The correct figure is shown below.

The publisher apologizes for this error and any confusion it may have caused.3

image

Figure 3. Effects of light pulses 3 h after lights off and before lights on on locomotor activity rhythm in Delia antiqua at 20°C. (a) Effects of 1 h light pulses (inline image , means of φA). (b) Effects of 15 min ( inline image, means of φA) and 1 min ( inline image, means  of  φA)  light  pulses.  The  results of 1 h night interruption (inline image) are also shown for comparison in (b). Sample size for each point ( inline image, inline image and inline image) is summarized in Table 1. The cycles from the third to the fourteenth days after eclosion were summed individually to determine φA (see Figure 2). Horizontal lines indicate standard deviation.

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