148 POPULAR ENTOMOLOGY. 



beline/ These insects seem to prefer still, dull evenings for 

 their flight, at which time the humming noise they make is 

 very considerable. 



COLEOPTEEA. 



LUCAMJS. 



Generic Distinctions. Antenna, the four terminal joints project 

 on one side ; head as wide as the thorax ; maxillce terminating 

 in a slender lobe ; mandibles very large. 



LTJCANUS CEEVTJS. (Plate II.) The male of the Stag- 

 Beetle is about two inches in length, including the man- 

 dibles ; it is entirely of a brownish-black colour, the surface 

 shining and covered with small punctures ; near the fore leg 

 is a patch of golden-coloured hair, which seems to be used 

 for the purpose of cleaning the antennae. The female is 

 considerably smaller than the male ; the mandibles are also 

 short, and the head much smaller. 



The very formidable mandibles of this Beetle are em- 

 ployed in wounding the bark of trees, in order to feed on 

 the sap. Mr. Waterhouse kept one alive for many weeks, 

 feeding it on sugar and water ; it also seemed fond of the 

 juice of raspberries and other sweet substances. The perfect 



