iiaupella] OECOI'HOHIDAK 



if bright yellow ; a streak along basal \ of costa, a straight 

 transverse streak bounding the yellow basal area, and a trans- 

 verse mark in disc at § deep purple. Hindwings dark fuscous. 

 Monmouth, Durham, very local ; C. Europe, Asia Minor ; 6, 

 7. Larva grey; head pale brown ; plate of 2 blackish, bisected : 

 in decayed wood ; 2-4. 



18. Oecoi'uoua, Latr. 



Tongue developed. Antennae ;,', thickened above with rough 

 scales on basal half, in cj fasciculate-ciliated (1£), basal joint 

 without pccten. Labial palpi long, second joint with approssed 

 scales, terminal shorter. Forcwings : 7 to costa. Hindwings 

 1, elongate-ovate, cilia £; 3 and 4 connate or stalked. 



Includes only a few species, attached to the European 

 region. Imago with forewings elongate, apex rounded, termer) 

 very oblique. Larva in decayed wood. The species fly actively 

 in the sunshine ; in repose the antennae are usually porrected. 



Hindwings yellow . . . .2. sulphurella. 



,, not yellow . . .1. oliviella. 



1. 0. oliviella, F. 14-17 mm. Forewings purple-blackish, 

 posterior half thinly strewn with yellow-whitish scales ; a large 

 triangular spot touching base, and a fascia before middle pale 

 yellow ; a streak above basal spot, a slender transverse fascia 

 beyond it, and a curved transverse streak beyond middle not 

 reaching dorsum purplish-leaden-metallic. Hindwings dark 

 fuscous. 



Kent to Hants and Essex, local ; C. and S. Europe, Asia 

 Minor; 6, 7. Larva in decayed wood of oaks ; 12-4. 



2. 0. sulphurella, F. 12-KS mm. Forewings bronzy-brown, 

 thickly strewn with oehrcous-yellow scales ; veins from base to 

 beyond middle marked with bright iridescent-metallic lines; a 

 yellow subcostal streak from bast' to middle ; a triangular 

 yellow spot before tornus, and a smaller whitish -yellow costal 

 spot beyond this; a pale golden -metallic spot between these. 

 Hindwings ochreous-yellow, irregularly margined with dark 

 fuscous except on lower half of termen. 



Britain to the Clyde, Ireland, common; C. and S. Europe, 

 Asia Minor; 5, (1. Larva grey- whitish.;- dots blackish; head 

 and plate of 2 reddish-brown : in decayed wood ; 12-3. 



11. A.COMPSIA, lib. 

 Tongue developed. Antennae |, in $ ciliated (1-2), basal 



