252 Mr, E. Mey rick's Descriptions of 



Opogona leptynta, n. sp. 



9. 12 mm. Head and thorax shining pale yellow-ochreous. Palpi, 

 antennae, and abdomen whitish-ochreous. Forewings broad-lance- 

 olate, apex slender, caudate, upturned; light yellow-ochreous, 

 deeper along fold and towards apex ; a small dark fuscous spot on 

 dorsum at ^; a very oblique cloudy fuscous dash above tomus; an 

 extremely fine straiglit fuscous line from f of costa to base of apical 

 projection ; a blackish praeapical dot : cilia pale ochreous. Hind- 

 wings brassy-grey, apex ochreous-tinged ; cilia pale greyish-ochreous. 



British Guiana, Mallali, in March {Parish); one 

 specimen. 



Opogona hemidryas, n. sp. 



$. 11-12 mm. Head and thorax pale brownish-ochreous, face, 

 fillet, antennae, and palpi ochreous-whitish. Abdomen greyish- 

 bronze. Forewings rather broad-lanceolate, apex produced, acute ; 

 brownish-ochreous ; dorsal third or half of wing more or less wholly 

 suffused with dark brown, upper portion of this sometimes forming 

 a darker median streak throughout ; a slender sufEiised fuscous supra- 

 median longitudinal line more or less developed ; some dark fuscous 

 suffusion along apical fourth of costa : cilia pale ochreous-grey, 

 towards base pale ochreous, with a dark brownish subbasal shade 

 round costa and upper part of termen. Hindwings bronzy -grey; 

 cilia grey. 



British Guiana, Bartica, in December and January 

 {Parish) ; Peru, Pacaya, in June {Mounsey) ; three speci- 

 mens. 



Syncrobyla, n. g. 



Head with appressed scales, face retreating, forehead with a raised 

 fillet, with frontal projecting tufts from just before and behind this ; 

 tongue short. Antennae nearly 1, in (^ simple, basal joint very long, 

 rather stout, without pecten. Labial palpi moderate, slender, sub- 

 ascending, second joint with two or three projecting lateral bristles 

 at apex, terminal joint nearly as long as second, obtuse-pointed. 

 Maxillary palpi several-jointed, slender. Posterior tibiae mth ap- 

 pressed hairs. Forewings with apex downtumed; 2 from angle, 



3 absent, 4 from near 7, 5 and 6 out of 7, 7 to costa, 8 out of 7, 

 9 from near 7, 11 absent. Hindwings J, narrow-lanceolate, cilia 3; 



4 absent, cell open between 3 and 5, 5-7 approximated at base. 



Related to Opogona and Oinophila. 



