62 INSECUTOK INSGITl^ MEKSTRTJUS 



upon two closely allied food plants, but from the imagoes it 

 is practically impossible to tell from which food plant they 

 have been reared. No under side mines were found ort 

 Ostrya, such as Miss Braun describes, but a single mine was 

 found on the upper side of Carpinus, which was in all respects 

 like the typical mine on the upper side of Osfrya. 



The writer wishes to here acknowledge his indebtedness to 

 Mr. August Busck for his generous help and advice upon 

 many occasions in the course of the preparation of this paper. 



TWO NEW LEPIDOPTERA FROM THE 

 ANTILLES 



By HARRISON G. DYAR 



Ctenucha hilHana, new species. 



Black ; occiput and palpi orange-red. Fore wing black with 

 blue-green reflection, strongest at base ; fringe narrowly white. 

 Hind wing black with very bright blue reflection. Abdomen 

 blue, last two segments above and half of venter orange-red. 

 Expanse, 40 mm. 



Type, male, No. 19331, U. S. Nat. Mus. ; Columbia, Isle of 

 Pines, April, 1914 (H. D. Hill). 



Laetilia portoricensis, new species. 



Gray; basal space light; inner line whitish, erect, inbent in 

 cell, followed with deep black, which forms a patch in the 

 indentation ; a whitish subcostal stripe from beyond inner line 

 to near outer, with a central black dash on costa and annular 

 black discal spot in its lower edge; black streaks more or 

 less distinct along discal and submedian folds ; outer line pale, 

 relieved by dark clouding, strongest subapically, gently outbent 

 in middle third; margin light, with indistinct terminal dots. 

 Hind wing dark fuscous. Expanse, 11 mm. 



Type, female. No. 19333, U. S. Nat. Mus.; Rio Piedras, 

 Porto Rico, November 23, 1913 (T. H. Jones). 



