10 THE CANADIAN ENTOMOLOGIST. 



ARGYRESTHIA. 



A. oreascUa. Clem. 



Mr. Stainton states in his edition of the Clemens papers that this is 

 the European A. andereggiella. It is the only species of the genus hereto- 

 fore described from this country. I have never met with it in this locality 

 but have received from Mr. Wm. Saunders several specimens with the 

 information that they were all taken whilst resting on the leaves of a 



thorn bush ( Cratcpgtis 7). In my specimens there is nothing 



that can be called an ' eye cap ' only a few long scales pendant over the 

 eyes from the elongate basal point of the antenniB, and the body, wings 

 and antennas more slender than in the species described below as A, 

 uudulateUa. The neuration of the wings in orcasclla is exactly that given 

 by Mr. Stainton (Ins. Brit. Lep. Tin., v. j) for A. fiitiddla. 



A. undulatdla. N. sp. 



Not having recognized this as a true Argyresthia formerly, it was 

 labelled in my cabinet Chalciope undiilatcUa, and has been distributed to 

 some correspondents under that name, and also under the names Polyxo 

 tindulatella and Albunea ujidulatella. 



It is more robust than orcasella, the primaries are wider, the tuft on the 

 vertex is larger, the basal joint of the antennas is enlarged and has a 

 -distinct eye cap ; the antennas are much more robust and each joint is 

 clothed with rather spreading scales so that it is enlarged towards its apex, 

 the succeeding joint being inserted in the centre of its apex. 



The neuration of the primaries is like that of oreasel/a, but in the 

 secondaries the discal vein is absent from the subcostal to the first branch 

 of the discal, so that the cell is partly unclosed. 



I have named the species nndulatclla from its habit of ' see-sawing' on 

 its middle legs before it comes to rest in the attitude of the other species 

 of the genus, resting on its head with the apex of the body and wings 

 projecting at an obtuse angle to the object on which it rests. It is very 

 sluggish and not easily disturbed. It is found in considerable numbers 

 in May resting on the trunks of Elm trees. The larva is unknown. 



A. iindulatella. N. sp. 



Palpi brownish, at base white ; face white around the mouth, brownish 

 above. Tuft and eye caps snowy white. Antennae checkered with 

 alternate black and white spots. Thorax and dorsal half of the primaries 



