Séance du 16 Avril 1924 
119 
examining the upper surface of these 6 cases, it is 
quite obvious that the emergence was only partial, 
whereas fertilized egg-cases show very distinct marks 
of an evenly distributed and general hatching, except 
in a few cases of late egg-cases from which only a few 
or even no young at all emerged. As the smallest 
number of young from the fertilized egg-cases in¬ 
cluded in ‘X’ is 35 , it is certain that none of them 
can be among the last 6 in that line. For this reason 
also, the very small egg-case cannot belong to sec¬ 
tion c a\ 
Of the very small egg-cases, the great majority 
were either the last or neaidv the last laid or else 
t/ 
were 9 or 10 mm. long, so that in many cases they 
could have been included in the next larger group. 
This applies to the two laid by N° 17 and to the one 
laid by N° 88; which were respectively 10, 9 and 
10 mm. long. The 6th egg-case of N° 126 was only 
6 mm. long, but as it was made the day before the 
7th, is not finished and gave only i 3 young, it should 
really be considered as the beginning of the latter, 
the construction of the complete egg-case having been 
interrupted owing to some disturbance. 
Considering only such egg-cases as were indivi¬ 
dually labelled, we find the following distribution:— 
Bull. Soc. R. Entomologique 
9 
