The Glow- Worm and Other Beetles 



the head. This head is pale, soft, like the 

 rest of the body, and very small compared 

 with the rest of the creature. The antennae 

 are excessively short and consist of two 

 cylindrical joints. I have vainly looked for 

 the eyes with a powerful magnifying-glass. 

 In its former state, the larva, subject to 

 strange migrations, obviously needs the sense 

 of sight and is provided with four ocelli. In 

 its present state, of what use would eyes be 

 to it at the bottom of a clay cell, where the 

 most absolute darkness prevails? 



The labrum is prominent, is not distinctly 

 divided from the head, is curved in front and 

 edged with pale and very fine bristles. The 

 mandibles are small, reddish toward the tips, 

 blunt and hollowed out spoonwise on the in- 

 ner side. Below the mandibles is a fleshy 

 part crowned with two very tiny nipples. 

 This is the lower lip with its two palpi. It 

 is flanked right and left by two other parts, 

 likewise fleshy, adhering closely to the lip 

 and bearing at the tip a rudimentary palp 

 consisting of two or three very tiny joints. 

 These two parts are the future jaws. All 

 this apparatus of lips and jaws is completely 

 immobile and in a rudimentary condition 

 which is difficult to describe. They are bud- 

 ding organs, still faint and embryonic. The 



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