76 THE ENTOMOLOGIST. 



shoots of Genista thctoria, near Preston, about the beginning 

 of June, and are easily bred. 



Gelechia dijffiniella, along with G, tenehrella and G. tene- 

 hrosella, are plentiful wherever the little sheep's sorrel {Rumex 

 acetosella) grows, and are best obtained by taking away a 

 small bag-full of the plant, which is so plentiful that there is 

 no fear of extermination. I cannot help thinking that the 

 difference between the two latter species is only sexual; 

 they are always together wherever I have taken them. 



G. viscariella is scarce ; but by nipping off suspicious- 

 looking Lychnis heads, and examining them at home, a few 

 were bred. Lychnis diurna appears to be the favourite plant. 



G. ligulella or G. vorticella, from Lotus corniculatus. 

 What is the difference between them ? I shall be obliged by 

 information from anyone, or would gladly exchange insects 

 for a specimen of each. — J. H. Threlfall; 4, East CUff, 

 Preston, December, 1876. 



ANSWERS TO CORRESPONDENTS. 



J.T.Willis. — Complpjte List of Exotic Lepidoptera. 

 — Would you kindly inform me, through the pages of the 

 'Entomologist,' if there is published a complete list of exotic 

 Lepidoptera, and where I could obtain it ? 



[We are not aware of any complete list o^ Lepidoptera of 

 the world. There is one of the butterflies of the world, — a 

 perfect monument of patient labour, — by Mr. W. F. Kirby, 

 of the Royal Dublin Society, to whom we cannot do better 

 than refer our correspondent. — Ed.] 



S. G. — We use, and recommend, a ' Manual of British 

 Botany,' by Professor Babington, of Cambridge. Seventh 

 edition, 1874. London: Van Voorst. Price lOs. 6f/. For those 

 who are not proficient botanists we, in addition, suggest an 

 'Illustrated Manual of Botanic Terms,' by Dr. M. C. Cooke. 

 London : Hardwick & Co. Price 2^. Qd. Also, a ' Manual 

 of Structural Botany,' illustrated, by Dr. M. C. Cooke. 

 London: Hardwick & Co. Price Is. We take this opportunity 

 of reminding many of our correspondents how exceedingly 

 useful is even a limited knowledge of Botany to those who 

 study Entomology. — Ed. 



