1- jn^ 



,336. 



ARCTURUS SPARSHALLI. 



The long-tailed Bombyx. 



Order Lepidoptera. Fam. Arctiidae Leach. 



Type of the Genus, A. Sparshalli Curt. 

 Arcturus Curtis's Guide, Gen. 816. 



AntenncE inserted on each side the crown of the head close to 

 the eyes, composed of numerous joints, covered with scales above, 

 each joint in the male, producing 2 long rays ciliated and ter- 

 minated by a bristle (1). 

 Trophi undiscovered. 

 Head clothed with short scales in front, and with long hairy scales on 

 the crown. Eyes large globose and lateral {7, front view of the head 

 with the antenncB and fore legs). Thorax densely clothed with very 

 long decumbent hairs. Abdomen short, completely covered withdown, 

 the apex producing a fascicle of hairs as long as the body, in the male. 

 Wings deflexed when at rest, densely clothed with scales, superior 

 sublanceolate, rounded at the apex ; inferior rather small and sub- 

 orbicular, very hairy at the base. Cilia thick and entire. Legs almost 

 concealed by fine long pubescence. Thighs short. Tibiae short, an- 

 terior broad (8), probably producing a spine on the inside, the others 

 spurred at the apex. Tarsi 5-jointed, anterior very short (S), the 

 others rather long (Sf, the hind tarsus and apex of the tibia). Claws 

 and Pulvilli j9er/*ecf, but concealed abov?. 

 Caterpillar unknown. 



Sparshalli Curtis. 



Male, cream colour : rays of antennae ochraceous : eyes cinereous, 

 surrounded with black : anterior portion of the Thorax pale red- 

 dish brown : tuft of hair at the apex of the abdomen pale yellow : 

 wings glossy, with the nervures of a dull and pale purplish tint, 

 especially in the superior towards the base : anterior tibiae in 

 front, as well as the basal joint of their tarsi deep brown j all the 

 tarsi beneath ochreous : pulvilli brown. 



In the Cabinet of the Author. 



The cultivation of waste lands, the extinction of woods and 

 gardens, and the erection of extensive buildings, may have co- 



