73-/^3^ 



607. 



INCURVARIA MASCULELLA. 



The feathered Diamond-back. 



Order Lepidoptera. Fam. Tineidae. 



Type of the Genus, Tinea Masculella Wien. Verz. 



Incurvaria Haw., Curt. — Esperia Hub. — Adela Och. — Tinea Fab., 

 Hub., Haw. 



Antenna inserted in front of the crown, near to the eyes, rather 

 long and setaceous, pectinated inside in the male, each joint 

 producing at the apex a spoon- shaped branch, clothed with 

 scales (1); simply covered with scales in the female. 

 Maxilla spiral (3), rather stout and not half the length of the 

 Palpi, which are as long as the labial, incurved, scaly and 6- 

 jointed, 3 basal joints stout, 1st ovate, 2nd elongated, 3rd as 

 long but broader, 4th very long, slender and clavate, 5th not 

 longer than the 1st, subclavate, 6th as long but slender and 

 attenuated (3 a). 



Labial Palpi small, rather drooping, projecting beyond the 

 head (4), triarticulate, basal joint elongate and a little clavate, 

 2nd twice as long, rather thickly clothed with scales, but slen- 

 derest in the middle when denuded, 3rd joint as long as the 1st, 

 but very slender and fusiform (4 a) . 

 Head subglobose, densely tufted and woolly in front and on the crown : 

 eyes small, lateral and globose. Thorax smooth. Abdomen very 

 short and linear in the male, the apex furnished with 2 large horny 

 processes, surrounded with elongated scales, the penultimate joint 

 bristly; attenuated in the female (A, the apex): ovipositor exserted, 

 horny, incurved and acute (o) . Wings very much deflexed in repose 

 (N); superior twice as long as the body, lanceolate, inferior much 

 shorter, sublanceolate : cUia moderate. Tibiae, anterior short, the 

 others spurred at the apex, hinder pair the longest and very hairy 

 outside, with a pair of spurs near the middle (8 f).- tarsi 5-jointed, 

 basal joint elongated : claws and pulvilli minute. 



Masculella Wien. Verz. — Curt. Guide, Gen. 1035. I. 



Fuscous, shining ; head ochreous, superior wings purplish, 

 freckled with orange and ferruginous scales, with a nearly or- 

 bicular yellowish-white spot near the centre of the interior 

 margin and a subtrigonate one near the posterior angle : infe- 

 rior wings with a bluish tint freckled with orange. 

 In the Author's and other Cabinets. 



The genus Incurvaria of Haworth was found to include the 

 following species, and was characterized by the inflection of 

 the maxillary palpi ; the /. tripuncta^ which was included in 

 the Guide in accordance with Mr. Stephens's views, is inad- 

 missible, since the head is clothed with depressed scales and 



