Lepidoptera of New York and Neighboring States 165 



Pupa 



1. Prothorax crested, and four times as long on sides as on middle line. 



2. Dorsum of abdominal segments with only one size of spines; the segments 

 not crested behind. 

 3. Spined areas the whole length of the segments. 



4. Tongue extending seven-eighths way to apex of fore wing or farther; 



spines obsolescent 3. Acrocercops (venustella) . 



4. Tongue one-third of the length of the fore wing; spines small but 



distinct 5. Leucanthiza. 



3. Spined areas a fourth as wide as the length of the segments. 



4. Head without a prominent crest ( cocoon cutter ) ; tongue extending 



more than half way to apex of fore wing .6. Marmara. 



4. Head with a prominent crest (cocoon cutter) ; tongue extending less 



than half way to apex of fore wing 8 Cremastobombycia. 



2. Spines of two sizes; the posterior edge of the segments usually crested. 



9. Lithocolletis. 



1. Prothorax depressed and neck-like, not more than twice as wide on side as 



on mid-dorsal line. 

 2. Spines very coarse, sometimes with fine ones intermixed. 



3. Head with a ventral cutting-plate, which is usually serrate; maxillae as 



long as mid-legs 2. Gracilaria. 



3. Head prominent, but without cutting-plate; maxillae shorter than mid- 

 legs 1 . Parornix. 



2. Spines very numerous and all minute 7. Parectopa. 



1. PARORNIX Spuler 



(Ornix Treitschke, in part) 



Vertex strongly roughened; front smooth; antennae as long as fore wing, with- 

 out pecten; palpi moderate, smooth; third segment somewhat shorter than second; 

 maxillary palpi fairly large, similar to labials. Hind tibiae smooth. Fore wing 

 lanceolate (fig. 116); five veins running to costa, and four to inner margin; 

 R x arising a third way out on cell; accessory cell usually preserved and R B and 

 Mj stalked. Hind wings narrow-lanceolate; tip of R x free but Sc coincident for 

 a considerable distance with costal edge; venation nearly complete. M-stem 

 usually forked; fringe three times as wide as membrane. 



Larva of cylindrical type with normal legs (except when very young) with two 

 curved bands of hooks, enclosing a straight row. 



The larvae leave their mine when well grown and form a nest by folding over 

 the edge of a leaf, usually flatly. The pupa is formed in a similar nest. Most 

 species feed on Rosacea? and Amentiferae. The moths rest with head raised, and 

 fore and middle legs displayed. They fly freely in the afternoon. The species 

 resemble each other closely, and are indeterminable if at all rubbed. The pupa 

 hibernates. 



Key to the species 



1. Ground evenly brown, shining, with white or yellow marginal spots. 



2. A complete fascia; head concolorous. 



3. Five costal spots, outer half of apical fringe gray 3. preciosella. 



3. Five costal spots followed by a white bar in apical fringe; longer fringe- 

 scales at apex pale, and black-tipped 2. kalmiella. 



