72 One Thom>*nd Objects 



branch again plumed with rigid hairs, and terminating 

 in a pair of bristles. In all these instances, males should 

 be selected. 



534. ANTENNA OF SCALLOP-BAR (Scodiona belgiaria). 

 This has also plumose antennae, as well as the Bordered 

 Grey (Selidosema plumaria), the Oak Beauty (Amphidasis 

 prodromaria), and the males of many others of the 

 Geometers. (PI. VII., fig. 39.) 



535. ANTENNA OF GNAT (Culex pipiens). The plu- 

 mose antenna of the male gnat, and the still finer antenna 

 of another species, called the Plume Gnat, maybe mounted 

 in situ. 



536. END OF ANTENNA. The end of the antennae of 

 'che larva of the Cockchafer is furnished with a number of 

 erect spines. (PI. VII., fig. 25.) 



537. CLAW OF SPIDER (Epeira diadema). In many 

 species of spider, the concave side of the claw of the 

 foot is serrated, or toothed like a comb, more distinct in 

 some than in others. (PI. VII., fig. 20.) 



538. EYES OF WATER-SPIDER (Argyroneuta aquaticd). 

 The eight eyes are arranged according to a different plan 

 in nearly all the genera of spiders a useful guide io 

 determining the genus to which a spider belongs. (PI. 

 VII., fig. 18.) 



539. THREAD OF SPIDER'S WEB (Epeira diadema). 

 These glutinous threads have spherical beads at regular 

 distances, with intermediate smaller ones. (PI. VII., 



fig- 5-) 



540. LANCET OF WASP (Vespa vulgaris). The lancet 

 of wasp-sting, extruded, with its toothed barbs, is a 

 common but very instructive object. (PI. VII., fig. 

 10.) 



541. TONGUE OF BLOW-FLY (Musca vomitoria). This 

 very common and beautiful object is often figured and 

 described as flattened and contorted by mounting. It is, 

 however, a beautiful object when seen in its natural 

 condition. 



542. FOOT OF FLY (Musca domestica}. The foot is 

 hardly less interesting than the tongue. The claws and 



