254 [April, 



Genus 9. — Anceetx, Bd., Walker. One species. 



Legs long and slender ; fore-wings straight along the costa, acu- 

 minated, very oblique, and slightly denticulated along the hind margin ; 

 hind-wings slightly acuminated, hardly denticulated along the hind 

 margin. 



A. PINASTEI. Europe, generally distributed. Common in col- 

 lections. 



Genus 10. — Acheeontia. One species. 



A. Atropos. Generally distributed. Common in collections. 



Genus 11. — Laothoe, Fab. {Smerinthus, Ochs.) Five species. 



A. Proboscis distinct, but very short. 



B. Fore-wings with green markings, L. tili^. 

 BB. Fore-wings with no green markings. 



C. Hind-wings with a large eye-like spot. L. ocellatijs. 



CC. Hind-wings with a brick-red blotch. L. populi. 



CCC. Hind-wings with neither eye nor red blotch. L. tremul^. 



AA. Proboscis obsolete. L. querctjs. 



t' ■ [ Generally distributed. Common in collections. 



L. TEEMULJE, Fisch., 2" 4'". Brown, varied with green. Fore- 

 wing with a pale spot at tip, and with hind margin pale ; a row of three 

 blackish spots across the wing just within the disc. cell. Hind- wing with 

 the hind margins blackish, base darker than the rest of the wing, but no 

 basal blotch (H.-S.). 



Larva pale yellowish-green, spotted with black. Head dark green, 

 bordered with yellow ; stigmata yellow ; horn yellow above and rusty 

 beneath ; legs rosy, prolegs green, and seven pale blue oblong streaks 

 bordered below with white, which meet on the back (Fischer quoted by 

 Dup.). *0n Populus tremula. 



Central and northern Russia. Very rare in collections. 



L. TiLi^. Europe generally. Common in collections. 



L. QPEECUS, Fab., 3" 3"'-3" 9'". Fore-wings tawny-grey, with 

 several transverse reddish-brown lines running across them : the wings 

 suffused with reddish-brown outside the outer oucs and inside the inner 

 ones. A reddish-brown parallelogram on the inner margin near the 

 anal angle, and a round spot of the same colour above it. Hind-wing 

 fawn-colour, with an irregular white mark, with two dark spots below 

 it, near the anal angle. V. VII. 



A most difficult insect to describe. 



