;/ 



471. 



ADACTYLUS BENNETII. 



The sea-side Plume. 



Order Lepidoptera. Fam. Tineidae. 



Type of the Genus, Alucita adactyla Hub. 



Adactylus Curt. — Alucita Hilb., Treit. 



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

 rather short and slender, composed of numerous joints clothed 

 with scales ahove, and very pubescent beneath in the male (1 (J) ; 

 less so in the female. 



Maxilla slender spiral and nearly as long as the antennae (3). 

 Labial Palpi curved, densely clothed with scales and truncated, 

 giving them a triangular form towards the apex, mth the 3rd 

 joint just visible (4) ; triarticulate, basal joint long and broad, 

 2nd short and broad sublunulate, 3rd minute, ovate and trun- 

 cated obliquely (4 a). 

 Head small, subglobose, with a conical tubercle on the forehead thickly 

 clothed with short scales (7). Eyes small lateral and orbicular. 

 Thorax small, globose and trilobed. Abdomen very long, linear in 

 the male with the apex thickened and lobcd ; stouter in the female 

 and subfusiform, being narroioed at the base and somewhat conical at 

 the apex. Wings plaited together and erected when at rest, lanceo- 

 late, inferior the smallest. Legs slender. Coxae long. Thighs 

 short. Tibia?, anterior the shortest, clavate, with a short spine and 

 brush of scales on the inside near the apex, the others spurred at the 

 apex, posterior very long, with a minute j)air of ufiequal spurs below 

 the middle. Tarsi very long, 5 -jointed, basal Joint very long, 5th 

 not very short. Claws minute but distinct (Sf, hind leg). 



Bennetii Curt. Guide, Ge?i. 1039''. 



In the Author's Cabinet. 



The Alucita adactyla Hub. having undivided wings, as the 

 latter name implies, I was led to a careful examination of an 

 Insect closely allied to it, when I found its structure so widely 

 different from that of Pterophorus (pi. 161.) that I was under 

 the necessity of establishing a genus to comprise them. I 

 have therefore adopted the specific name of Hiibner's Insect 

 for the genus, and propose substituting that of the excellent 

 Lepidopterist who first made it known, to designate liis spe- 

 cies. 



Adactylus is distinguished from Pterophorus by its undi- 

 vided wings, the form of the palpi, which are obtuse and 



