METITLETT. 255 



The colour and tlio broad band in the wings readily 

 distinguish this pretty species. 



It does not appear to be very common. I have 

 seen it from the Glasgow district, Kinguessie, Braemar 

 (Sharp), and it has been recorded by Mr. McLachlan 

 from Rannoch. 



My specimens have always been taken on birch in 

 June and July. I believe the <$ is quite unknown. 



Continental distribution : Sweden, Germany, Franco, 

 Russia. 



22. BLENNOOAMPA BETULETI. 



Tcnthrcdo betuleti, King, Berl. Mag., viii, 57 ; Htg., Blattw., 



267, 4. 



Selandria betuleti, Ste., 111., vii, 50, 21. 

 Blennocampa betuleti, Thorns., Op., 283, 15 ; Hym. Scand., i, 



211, 10; Andre, Species, i, 316; 



Cat., 39,* 31. 



Black; head and thorax covered with a thick griseous pile; legs 

 testaceous ; coxa3, trochanters, and base of femora, black ; the apex of 

 hinder tibiae and the greater part of the tarsal joints fuscous. Antennae 

 filiform, longer than the abdomen, shortly pilose, the third joint a little 

 longer than fourth. Wings highly iridescent, with a faintly brownish 

 tinge ; costa and stigma dull black. The tr. radial nervure is received 

 near the third cubital ; the first tr. cubital is faint ; tegulaa black. The 

 saw is short, pilose at apex. 



Length 2 lines. 



There is no British species with which betuleti can be 

 readily confounded, but it has a wonderful resemblance 

 to Fcnusa betulce, which, however (exclusive of the 

 generic distinctions), may be known from the Blenno- 

 campa by its deeper coloured wings, pale tegulae, and 

 much more distinct branchial fork at base of lanceolate 

 cellule. 



Betuleti is a rare species. Stephens records it from 

 Darenth Wood, and Mr. Fletcher bred it at Worcester 

 from a larva which fed externally on birch ; this being 

 all that is known of its larval life. 



Continental distribution : Sweden, Germany, Hol- 

 land, France, Tyrol. 



