14 LONG. 



This seems probable also from the fact that the segments encased 

 in the larval skin are smooth, with none 'of the spines or bristles 

 which appear on the free portions. The tips were observed to 

 be divergent in life but the exact position of the " fingers " could 

 not be determined on account of their being concealed under the 

 larval skin. The dorsal bristles of each of the five species (see 

 Fig. 6, <?) are the most characteristic and distinguishing features 

 of the larvae, thus affording a sure and easy means of separating 

 the species. In no case is there any material variation in 

 these bristles for a given species ; even when the habitat varies 

 considerably, as in C. bnunalis, which lives under dung, under 

 rotten wood and in the nests of ants (Eciton coccnni}, the spin- 

 ous ornamentation is constant, and the imagines are identical. 



