1^- /'^3r 

 575. 



HALIAS QUERCANA. 



The Green or scarce silver-lines. 



Order Lepidoptera. Fam. Tortricidae. 



Type of the Genus, Tortrix Quercana Hiib. 

 Halias Treit., Dpnchl., Curt. — Cloephora Step. — Hylophila Hiib., 

 Step. — Earis Hub. — Pyralis Fab. — Tortrbc Linn., Haw. 

 Antenna inserted close to the eyes on the crown of the head, 

 capillary, rather short and slender, composed of oblong joints, 

 each with 2 bristles and 2 layers of scales outside, pubescent 

 within (1), basal joint stout and subturbinate, terminal one 

 ovate-conic, acuminated and pilose. 



Maxillce spiral and much longer than the palpi, the apex fur- 

 nished with tentacula (3). Palpi very minute (3 a). 

 Labial palpi porrected obliquely beyond the head, clothed with 

 short scales (4), distinctly triarticulate, basal joint long and 

 curved, 2nd linear not stouter, nor twice as long, 3rd more 

 slender, horny, subelliptic and compressed, with a calloua spot 

 at the apex (4 a). 

 Head transverse-ovate : eyes prominent and orbicular (7, head in pro- 

 file) : ocelli minute. Thorax clothed with rather long depressed 

 hairy scales. Abdomen conical at the apex, rather obtuse in the 

 males. Wings gently deflexed and forming a triangle in repose, 

 superior broad, the costa curved, apex truncated obliquely, cilia very 

 short ; inferior wings rather small, rounded, cilia short : tibiae, an- 

 terior with a broad internal spine, the others terminated by unequal 

 spurs, hinder very long and stout, with a pair of spurs also below the 

 middle : tarsi 5-jointed, posterior with series of spines beneath (8 f 

 hind leg) . 

 Larvae naked, slightly attenuated to the tail, with 6 pectoral, 8 abdo- 

 minal and 2 anal feet. 

 Pupae obtuse, inclosed in boat-shaped cocoons, closely and firmly made 

 with silk, upon the leaves of trees. 



Quercana Hiib. — Curt. Guide, Gen. 945. 2. 



In the Author's and other Cabinets. 



Mr. Stephens in his Illustrations says he has "adopted the 

 name employed by Hlibner (viz. Hylophila) in preference to 

 that of Treilschke( Halias), both on the score of priority, and 

 to avoid the confusion by using a word far too similar to Halia." 

 Mr. Stephens is singularly unfortunate in his corrections, for 

 Hiibner's name has been for many years employed by Mr. 

 Kirby to designate a genus of Hemiptera, which has been 

 adopted by Mr. Stephens in his Systematic Catalogue. 



These beautiful insects, which are the largest of the family, 

 cannot be surpassed in the charming combination of green and 

 white in which they are clothed. The caterpillars form com- 

 pact cocoons, like a boat, sometimes with the keel uppermost, 



