TINEID^E. 355 



thread-like lines next the eye-like black dot, near which arises 

 a slender pencil of long hairs. Below the costa the wing is 

 spotted with gold, and there is a broad oblique golden dark 

 band directed outwards and reaching to the middle of the 

 wing. The costa is golden on the outer third of its length. 

 The wings expand .36 of an inch. 



Lyonetia is closely allied to the preceding genus, and may 

 be distinguished from it by the head being smooth, the scales 

 being broad and flattened down. Mr. F. G. Sanborn first 

 drew our attention to this moth, having reared it from cocoons 

 found on the apple. From the singular habit of the larva in 

 making a case instead of living in a mine in leaves, we would 

 call it the Lyonetia saccatella (Plate 8, fig. 18 ; 18 a, the larva ; 

 186, the larva with its case, all a little enlarged). The moth 

 is a perfect gem ; its head and short antennae are pale gray 

 and its fore wings are light slate gray on the basal half, and 

 beyond bright orange, enclosing two white bands, one costal 

 and the other arising from the inner edge, both nearly meeting 

 in the middle of the wing, and edged externally with black. 

 There is a square, black, very conspicuous spot near the fringe, 

 in which is a long pencil of black hairs, not shown in the 

 figure. The outer angle of the wing is dusky. It expands 

 .20 of an inch. The larva is a little flattened green worm, 

 and constructs a flattened oval case of the skin of the leaf 

 which it draws about. The case is open at each end, and 

 is roomy enough for the larva to turn around in. It be- 

 comes fully grown by the last of August, and in Octo- 

 ber we have found the cocoons attached to the bark of the 

 tree, where they may also be seen through the winter and in 

 the spring. 



The last important genus, Nepticula, contains the smallest 

 known lepidopterous insects. "Many of them are excessively 

 beautiful, resplendent with burnished copper, gold and silver 

 scales. They may be observed in May and June, sitting on 

 the trunks of trees or palings ; but to see these atoms requires 

 an experienced eye. Most of the species appear to be double- 

 brooded, and are easily collected in plenty in the larva state. 

 A nut-leaf, containing from twenty to thirty larvae of Nepticula 

 microtheriella, is no unusual sight. In Nepticula the antennae 



