Lepidoptera of New York and Neighboring States 



145 



Family 11. TISCHERIID^l 



(Tineidae, in part) 



Vertex with a rather . smooth, spreading, flat tuft covering base of 

 antennas; front smooth-scaled, high, tapering strongly below. Ocelli 

 absent ; maxillary palpi obsolete ; tongue weak, scaled ; labial palpi 

 smallish to minute, somewhat roughly scaled, but without bristles, not 

 upturned. Antennas with scape smallish, a third the width of the eye, 

 with a small, modified, scaly pecten. Segments of shaft slender, and 

 ciliate below, with outer whorl of scales perceptibly raised. Eyes large 

 and naked. Hind tibias hairy, the upper spurs well toward base. Fore 

 wing lanceolate (fig. 106)- more or less caudate, with large discal and 

 accessory cells and all veins arising from them short. All radials pres- 

 ent ; R x arising before the middle of, the cell ; R 5 running to costa ; 

 one or more dorsal veins lost, and those present very short; the last 

 cubital running directly across to inner margin. Hind wing normally 



LPsp) 



107 



K LeB 



0u 



Figs. 106-107. tischeriid.^ 

 106, Tischeria, venation; 107, Tischeria malifoliella, seta map of larva 



hardly half as wide as fore wing, in a few males about as wide, pointed ; 

 female frenulum of 2. bristles. Venation reduced and cell open. 



Larva (fig. 107) less specialized than the Lyonetiidas and Opostegida?, 

 strongly flattened ; epicrania with an obscure lateral keel, with the nor- 

 mal seta? preserved, the epicrania extending a third their width behind 

 the vertex. Hypostoma well developed, with divergent lateral sutures. 

 Labrum with well developed pilifers; front reaching vertex, but some- 

 times narrowed to a point behind. Ocelli preserved, . equal in size. 

 Mouth parts small, normal. Mandibles of the biting type, the larva 

 eating the parenchyma. Thoracic legs wanting. Abdominal segments 

 slightly lobed laterally ; prolegs with transverse bands of rudimentary 

 hooks. 



The larva is a leaf-miner, usually making a large blotch. Some- 

 times the feeding is all on one side, leaving the beginning of the mine 



