/3^ /^ ^^ 



599. 

 BACTRA PAUPERANA. 



The Spotted Drab. 



Order Lepidoptera. Fam. Tortricidae. 



Type of the Genus, Tortrix plagana Haw. 

 Bactra Ste. — Aphelia Guide. — Toxtriyi Hub., Haw. 



Antenna; inserted close to the eyes, on the fore part of the crown, 

 setaceous, sometimes short, composed of numerous small joints, 

 scaly above, very hairy beneath, at least in the males (1), basal 

 joint stout. 



Maxillce not longer than the palpi, spiral, composed of 2 com- 

 pressed lobes, pubescent outside at the base (3). 

 Labial palpi rather large, slightly drooping or porrected hori- 

 zontally considerably beyond the head, appearing very dilated 

 from being densely clothed with scales which perfectly conceal 

 the apical joint (4), triarticulate, basal joint short, hatchet- 

 shaped, being slender and curved at the base, 2nd joint very 

 long and inflated, narrowed at the base, ovate at the extremity, 

 3rd joint slender, subelliptical, a little longer than the 1st (4 a). 

 Head small, rough with scales : eyes orbicular : oceUi 2, distinct (7 * 

 head in profile). Thorax rather small with depressed scales. Ab- 

 domen short linear and tufted in the male; longer and conical, with 

 a small tuft in the female. Wings somewhat decumbent, in repose 

 lying one over the other; superior long, narrow and lanceolate; in- 

 ferior ovate lanceolate. Tibiae, anterior very short, the others with 

 a pair of unequal spurs at the apex, posterior long with a pair of 

 spurs also a little below the middle, one very long (8 f) .• tarsi long and 

 b-jointed. 

 CEconomy unknown. 



Favvbuan A Haw. —Curt. Guide, Gen. 958. 2. 



Whitish-ochre ; superior wings freckled, with numerous irre- 

 gular ferruginous rays running obliquely from the costa, which 

 is spotted with black, as well as the interior margin ; apex 

 orange tipped with fuscous, with 2 fine black transverse lines 

 and 3 or 4 dots at the base of the cilia ; a large subtrigonate 

 brown spot near the base and an elbowed one in the centre : 

 inferior wings and abdomen pale grey ; cilia ochreous- white. 

 In the Author's and other Cabinets. 



This genus makes a near approach to our Cnephasia (fol. 1 00.), 

 and I have httle doubt that the 2 species given as the Ablabia 

 of Hiib. belong to that group, for akhough they have in some 

 measure the habit of Bactra their trophi agree with those of 

 Cnephasia. 



It is very doubtful if the first 4 species be distinct, for 2 of 

 them vary almost ad vifi,7iitu7n, and they make so near an ap- 

 proach to each other, that it is difficuh to draw the line of se- 

 paration, although nothing is more easy than to distinguish 

 the marked type of each. 



