2036 Insects. 



with a bundle of hair. Perhaps for so slight a difference he would have done better 

 in making it only a division in the genus Gracillaria."— (Dup. Cat. p. 372). 



The three species alluded to in the above extract are, — quercetellum, ligustrinel- 

 lum and citrinellum. Duponchel places his Alaudella in the genus Elachista, but it 

 seems out of place there, and probably belongs to this genus, to which Mr. Curtis has 

 referred it. Citrinellum appears in the second edition of Messrs Evans' and Haw- 

 ley's Catalogue (Gracillaria citrinella, Fischer), but I believe there is no instance on 

 record of its capture in Britain. 



Coriscium Alaudella, Duponchel. " Expansion of wings 4| lines. Anterior wings 

 are above of a reddish-gray, with three little transverse bands and several spots of a 

 deep brown, bordered with whitish. The three bands are placed obliquely, equidistant 

 from one another, between the base and the middle of the wing, and the spots occupy 

 the remainder of its surface. The cilia reddish-gray. The underside of these wings 

 is gray-brown. Both surfaces of the posterior wings are of a deep brown, with the 

 cilia a shade paler. The head, thorax and antennae are of the colour of the anterior 

 wings. The abdomen and the legs of the colour of the posterior wings." — (Dup. vol. 

 xi. p. 525). 



Duponchel says nothing of its habits, time of appearance, &c.,but that he obtained 

 it from the ' Departement du Nord.' 



Coriscium quercetellum, Zeller. " Expansion of wings 3-g- lines. The anterior 

 wings above are of an ashy-gray, dotted with blackish atoms, which by their union 

 form several spots or irregular bands. Their extremity is bordered by a blackish arch, 

 the outer side of which is turned towards the base of the wing. Cilia concolorous 

 with the disk. The underside of these wings is blackish. Both surfaces of the pos- 

 terior wings are of a leaden-gray, with the cilia rather paler. Autennae very long." — 

 (Dup. Sup. vol. iv. p. 470). 



Duponchel says, " head and thorax, as well as their appendages, are of the colour 

 of the wings," not mentioning whether he means the anterior or posterior wings. 

 From his figure I conclude he means the anterior wings ; the abdomen is more of the 

 colour of the posterior wings. In a former number (Zool. 1895), Mr. Curtis records 

 both these species as having been taken in England. — Id. 



Note. — Since writing the above I find, from the second volume of the * Linn&a 

 Entomologica ' (a work I would recommend to all entomologists), that ligustrinellum 

 of Zeller is identical with alaudella of Duponchel, which latter name has priority. 

 Zeller says of it, " This species is widely spread, but little known : it occurs in Swit- 

 zerland, at Baiern, near Augsburg, where Freyer found the larva? abundant on the 

 privet. Mann took, so he writes me, several specimens in the neighbourhood of 

 Vienna, in a wood near Mauer, on the Tann, in which, for aught I know (I made an 

 excursion thither with Mann), no privet grows. A specimen which I possess was 

 taken near Cologne, on the Rhine, on the 14th of September, on beech. Lastly, this 

 species also occurs near Kokenhusen, in Livonia, and I have three Livonian specimens 

 before me to make use of in the description. I can give no precise period of flight 

 besides September. It is very probably double-brooded." 



I cannot imagine Duponchel's insect to be the quercetellum of Zeller. It cer- 

 tainly but little resembles Zellcr's figure, which is moreover figured in Duponchel as 

 Elachista Curtisella. This insect being one of several species of doubtful location, 

 which will be figured and described in my Monograph of the British Argyromiges 



