The Glow-Worm and Other Beetles 



on the line dividing it from the first segment. 

 Then follow eight pairs, one on each seg- 

 ment of the abdomen except the last, making 

 in all nine pairs of stigmata. The last pair, 

 that of the eighth abdominal segment, is the 

 smallest. 



The anal extremity displays no peculiarity. 

 The cephalic mask comprises eight cone- 

 shaped tubercles, dark red like the tubercles 

 of the legs. Six of these are arranged in two 

 lateral rows; the others are between the two 

 rows. In each row of three nipples, the one 

 in the middle is the largest; it no doubt cor- 

 responds with the mandibles. The length of 

 this organism varies greatly, fluctuating be- 

 tween 8 and 15 millimetres. 1 Its width is 

 from 3 to 4 millimetres. 2 



Apart from the general configuration, it 

 will be seen that we have here the strikingly 

 characteristic appearance of the pseudo- 

 chrysalids of the Sitares, Oil-beetles and 

 Zonites. There are the same rigid in- 

 teguments, of the red of a cough-lozenge or 

 virgin wax; the same cephalic mask, in which 

 the future mouth-parts are represented by 

 faintly marked tubercles; the same thoracic 

 studs, which are the vestiges of the legs ; the 



1 .3i2 to .585 inch. Translator's Note. 

 2 .117 to .156 inch. Translator's Note. 

 148 



