rHUYSOCLiSTA] ELACHISTIDAE G77 



terminal shorter, acute. Posterior tibiae rough-haired. Fore- 

 wings Avith scale-tufts on surface; lit furcate, 5 absent, 7 and 8 

 stalked or coincident, 7 to costa. Hindwings |, lanceolate, 

 cilia 3-4 ; 5 and 6 or G and 7 sometimes stalked, transverse vein 

 sometimes partl}^ absent. 



A small genus, at present not satisfactorily identified outside 

 the European region. Imago with forewings elongate-lanceolate. 

 Larva feeding in bark, fruit, or shoots of trees or shrubs. 



1. Forewings partly orange . . . .2. 



,, not orange . . . . -3. 



2. Costa broadly black to about middle . 1. Itimacidella. 



„ only black at base . . .2. linneella. 



3. Head orange-j^ellow . . 3. aurlfrontella. 



,, not yellow . . . . .4. 



4. Head white .... 5. nira. 



,, not white . . . . '). 



5. Forewings with four large scale-tufts . 6. o-hdinnidla. 



,, ,, two scale-tufts . . 4. vinolentella. 



1. C. bimaculella, Hw. 10-12 mm. Head and thorax metallic 

 brassy-black. Antennae with apex white. Forewings bronzj'- 

 blackish ; an elongate orange blotch towards base below middle; 

 a large orange blotch occupying apical half of wing except 

 margins, extending to costa at f ; silvery-metallic scale-tufts 

 above dorsum before middle, below middle of costa, and beyond 

 tornus. Hindwings dark bronzy-fuscous. 



England to Westmoreland, scarce and local ; (jcnnany, 

 Austria ; 6, 7. 



2. C. linneella, CI. 10-13 mm. Head and thorax metallic 

 brassy-black. Antennae with apex white. Forewings bright 

 oi'ange ; base black, emitting a fine silveiy-metallic costal streak 

 to -g-, and a shorter projection in disc ; dorsum slenderly, termen 

 and apical \ of costa more broadly bronzy-blackish; a silvery- 

 metalhc scale-tuft above dorsum before middle, another below 

 middle of costa, and a third bej^ond tornus ; a silvery-metallic 

 costal dash about |. Hindwings dark bronzy-fuscous. 



Kent, Middlesex, Gloucester, N. Ireland, very local but 

 common where it occurs ; C. Europe, Asia Minor ; 7, 8. Larva 

 yellow - whitish ; head pale brown: in hark oi Tilia, especially 

 in towns ; 10-5. The imago rests on the trunks. 



3. C. aurlfrontella, Hb. {flavkaput, Hw.) 11-14 mm. Head 

 orange-yellow. Palpi yellow, basal half blackish, terminal joint 

 very short. Forewings purplish-black ; plical and second discal 

 stigmata black, raised. Hindwings dark fuscous. 



