'( Ixxxiv ) 



no idea of what the attraction was to give it an appearance so 

 remarkably different from that of the type. 



" Tlie plates show the appendages of Z. dryinus (n. sp.) and of 

 Celastrlna jyateana (liiubuhn;), of Everes dipora and argiades, 

 var. diporides, and figures of the several species photogi*aphed 

 in black and white. 



" Figures of the appendages of the other species will be found 

 in Proc. Zool. Soc. l. c. and Tutt's ' British Lepidoptera,' /. c. 

 from my specimens." 



Moth DESTRuexiON in Saxony. — Col. J. Yerbury drew the 

 attention of Fellows to the following extract from the " Times " 

 of current date, relating to the method of destruction applied 

 successfully at Zittau, Saxony, to the imagines of what appeared 

 to be Thaumetopoea {Cmthocampa, Stph.) pityocampa. 



"Satisfactory results have been recently obtained at Zittau, 

 Saxony, by an ingenious method of insect destruction. The 

 caterpillars of a certain kind of moth have been working great 

 damage during the last few years in the fir woods of Germany 

 where many thousands of acres have become a prey to the 

 voracious insects. 



"In the method employed for destroying them powerful 

 searchlights were erected, which throw their light on the 

 parts most frequently visited by insects from the neighbouring 

 forests. The insects were destroyed by a fan exhauster placed 

 close to the searchlights. A piece of wire gauze of about 1 cm. 

 mesh was stretched out in front of the discharging opening of 

 the exhauster, against which the moths are thrown. The 

 appai'atus used in connection with the definite tests comprises 

 two searchlights ; resistances for controlling the current ; and 

 flame arc lamps for further lighting the suction opening of the 

 fan. Thi'ee walls of the collector box consist of iron wire 

 gauze of 7'5 mm. mesh. After being filled until preventing 

 the passage of an adequate air current, the collector is removed 

 from the fan and emptied of its contents. 



" A point of special importance was to ascertain suitable 

 elevated points for installing the electrical apparatus whence 

 the most infested forests could be lighted as well as possible. 

 Those selected comprised the roof of the city electricity works, 

 the tower of the city hall, the roof of a municipal school, and 



