C. G. Hewitt 
165 
of whicli the first, or pseudocephalic segment, is often withdrawn into 
the second or prothoracic segment, as shown in the figure. The posterior 
end of the body is very obliquely truncate. The full-grown larva 
measures -5 to 6 mm. in length. The three series of pairs of spiniferous 
flagelliform processes, or appendages, are arranged as follows : A dorsal 
series consisting of ten pairs of processes commencing with an antenna¬ 
like pair of processes at the anterior border of the prothoracic segment 
(segment II) and slightly increasing in size posteriorly. A latero-dorsal 
series of ten pairs of processes which commences on segment III and is 
continued to the posterior end of the body. A latero-ventral sei’ies 
