South American Micro- Lepidoptera. 241 



Enteucha, n. g. 



Head rough -haired ; tongue absent. Antennae f, in cj simple, 

 basal joint forming a very large oblong eyecap, much longer than 

 eye. Labial palpi moderate, thickened with scales, drooping and 

 appressed between legs, second joint with scales somewhat project- 

 ing laterally, terminal joint rather longer than second, tolerably 

 obtuse. Maxillary palpi obsolete. Posterior tibiae shortly rough- 

 scaled above. Forewings with apex somewhat upturned, cell well- 

 marked, long, its margins coincident towards base, 2 from angle, type 

 of neuration apparently as in Opogona but with some veins absent, 

 not made out. Hindwings }, linear-lanceolate, cilia 4; neuration 

 not determined. 



A very interesting genus, intermediate in character be- 

 tween Opogona and Opostega; the fusion of cell-margins 

 towards base probably explains the process of formation of 

 the simple median vein of Opostega, in which the fusion is 

 complete. 



Enteucha cyanochlora, n. sp. 



cj, 6 mm. Head, palpi, and antennae light yellow-ochreous, collar 

 and thorax deep indigo-blue. Abdomen dark grey. Forewings 

 broad-lanceolate ; deep indigo-blue ; a small oblique-triangular pale 

 ochreous spot on costa beyond middle ; a round pale yellow-ochreous 

 blotch occupying apex and terminal cilia, rest of cilia deep indigo- 

 blue. Hindwings dark purple-grey ; cilia dark grey. 



British Guiana, Bartica, in February (Parish) ; one 

 specimen. 



Phyllocnistis dorcas, n. sp. 



$. 5 mm. Head, palpi, antennae, thorax, and abdomen silvery- 

 white. Forewings narrow-lanceolate, apex caudate ; silvery-white ; 

 apical fourth suffused with light yellow; a short very fine oblique 

 grey strigula from costa beyond middle; two opposite transverse 

 fine grey strigulae at |, not meeting; a large round black apical 

 dot in cilia, nearly preceded by a fine transverse dark grey strigula : 

 cilia white, on termen with basal | light yellow limited by a faint 

 grey line, on costa with a short fine oblique grey strigula preceding 

 the praeapical one. Hindwings and cilia white. 



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

 specimen. 



Phyllocnistis sciophanta, n. sp. 



(J. 5 mm. Head, palpi, thorax, and abdomen white. Forewings 

 narrow-lanceolate, caudate; shining white; oblique grey strigulae 

 TRANS. ENT. SOC. LOND. 1915. — PART II. (AUG.) R 



