4^8 CATALOGUE OF MOTHS. 



SPHECIA, Hub. 



16. Sphecia Apiformis, (Linn.). Poplar Clearwing. 



Sphecia Apiformis. Staint. Man., vol. i., p. 102. 

 Sesia ,, JS'ewm. Brit. Moths, p. 106. 



jSphcecia ,, Barr. Lep. Brit. Is., vol. ii., p. 106. 



JEgeria ,, Meyr. Hdbk. Brit. Lep., p. 563. 



Laeva. Buck., vol. ii., pi. xxvii., fig. 1 ; 0. Wils., pi. ix., 



fig. 7, 7a. 

 The only record I have found of the occurrence of this species 

 in our district is in Wailes' Catalogue, p. 45. '' Once near High 

 Force, Teesdale." W. Backhouse, Esq." 



17. S. Bembeciformis, Hub. Willow Cleaewing. 



Sphecia Bembeciformis. Staint. Man., vol. i., ip. 102. 



Sesia ,, Kewm. Brit. Moths, p. 16. 



Sphcecia ,, Barr. Lep. Brit. Is., vol.ii., p. 103. 



^geria crabroniformis. Meyr. Hdbk. Brit. Lep., p. 563. 



Larva. Buck., vol. ii., pi. xxvii., fig. 2 ; 0. Wils., pi. ix., 



fig. 6. 

 Wailes says of this species, " common throughout the district, 

 and especially so around I^ewcastle. There is scarcely a Willow 

 (^Salix Caprma) of ten years' growth in the fences of our suburban 

 gardens that is not perforated by the larvse, and ultimately so 

 weakened that the first gale of wind blows it down. In July, 

 the remains of the pupa cases may be observed protruded through 

 the bark in great numbers, though the insects are seldom seen. 

 This species abounded in some Willows in a garden at the West- 

 gate some twenty -five years ago, and I was accustomed to sur- 

 round their trunks with gauze at the proper season, and so 

 secured the Moths. Twizell. P. J. Selby. ' In Ronnie's Lane.' 

 Ornsby's Durham." 



Mr. Wailes appears to have had the idea, which is very gener- 

 ally held, that the larva of one of these feeds only on Poplar, 

 and the other only on Willow or Osier. (See Stainton's Manual, 

 vol. i., p. 102, T^ewman's Brit. Moths, p. 16, Meyrick, Hdbk. 

 Brit. Lep., p. 563, etc.). This is certainly not so. Mr. Barrett 



