The Glow- Worm and Other Beetles 



wallets of Megachile sericans, made with 

 little round disks of the leaves of the com- 

 mon acacia; in the third place, from the cells 

 which Anthidium beUicosum ^ builds with par- 

 titions of resin in the shell of a dead Snail. 

 This last Anthidium is the victim also of 

 the Unarmed Zonitis. Thus we have two 

 closely-related exploiters for the same victim. 

 During the last fortnight of July, I wit- 

 ness the emergence of the Burnt Zonitis from 

 the pseudochrysalis. The latter is cyHn- 

 drical, slightly curved and rounded at both 

 ends. It is closely wrapped in the cast skin 

 of the secondary larva, a skin consisting of 

 a diaphanous bag, without any outlet, with 

 running along each side a white tracheal 

 thread which connects the various stigmatic 

 apertures. I easily recognize the seven ab- 

 dominal stigmata; they are round and dimi- 

 nish sHghtly in width from front to back. I 

 also detect the thoracic stigma. Lastly, I 

 perceive the legs, which are quite small, with 

 weak claws, incapable of supporting the 

 creature. Of the mouth-parts I see plainly 

 only the mandibles, which are short, weak 

 and brown. In short, the secondary larva 



1 For the Cotton-bee, Leaf-cutter and Resin-bee men- 

 tioned, cf. Bramble-bees and Others: passim. — Trans- 

 lator's Note. 



i8o 



