LEPIDOPTERA OF NEW YORK AND NEIGHBORING STATES 149 



doubtfully belongs to this family. Ocelli absent. Antennae with scape 

 enlarged and flattened; with eye-cap except in a couple of species of 

 Phyllocnistis. Shaft with two nearly equal whorls of scales to a seg- 

 ment. Hind tibiae with long bristly hair above, becoming a row of 

 strong bristles in Phyllocnistis; upper spurs attached well above the 

 middle. Fore wing lanceolate, often caudate (with a slender pro- 

 longation of the apical membrane), R 5 running to costa; radials often 

 reduced to three; R x leaving cell well toward base of wing, except in 



FlGS. 108-112. LYONETIID^E 



108, Paraleucoptera albella, venation (after Heinrich) ; 109, Bedellia 

 somnulentella, venation; 110, Bucculatria;, venation; 111, Lyonetia, 

 venation of fore wing; 112, Phyllocnistis, venation 



Phyllocnistis, or lost. Not more than four dorsal veins. Vein 1st A 

 weak, free ; 2d A variable, even within the genus Cemiostoma. Hind 

 wing linear or lanceolate, its fringe much wider than itself, the mem- 

 brane abruptly narrowed near or before middle of costa. Sc short, 

 running close to costal edge, or even fused with it ; sharply diverg- 

 ent from the R-stem from the base as in the Elachistoidea ; R-stem 

 running, to apex, with one or two medials given off from its lower 

 side ; Cu separate, simple except in Philonome ; anal region extremely 

 reduced, often without distinct veins. 



Egg flat. Larva with both true legs and prolegs present; 16 legs, 

 except in Phyllocnistis. Body nearly cylindrical. Head much flat- 

 tened in the normal series, with strong lateral keels and reduced mouth 

 parts. Ocelli, six, in two groups ; some setae lost. Front quadrangular ; 

 hypostoma as in the Tischeriidae. Setae iv and V on abdomen remote, 

 i nearer the middle line than ii; setae of prothoracic wart widely 

 separated ; setae of prolegs uniordinal in a complete ellipse ; rarely with 

 traces of a second row. 



Pupa with all appendages soldered together and no free segments; 

 labial and maxillary palpi not visible; labrum a separate sclerite; 

 appendages nearly as long as the body; antenna} longer than wings; 

 prothorax narrow, especially on the middle line, the dorsal head piece 



