April, 1921] Notes on Elachista—II 207 



and lateral ridges pinkish. In general, the pupa belongs to 

 the elongate tapering type, but the median ridge is convex from 

 anal end to head when viewed from the side, extending out 

 on to the head, where it divides, a projecting ridge extending 

 on each side to the antennae, thus forming a pointed hood 

 which projects over the face. Lateral ridges also prominent, 

 with prominent lateral thoracic tubercles. The pupa is attached 

 by a median band of silk, and also enclosed in a few strands of 

 silk. 



The abrupt ending of the median fascia before it reaches the 

 dorsum, easily distinguishes this species from all other described 

 species. In the fore wing, veins 7 and 8 are long stalked and 

 vein 6 arises from the extreme base of 7; other points of the 

 venation as in the figure in Meyrick's Handbook. 



Elachista enitescens n. sp. 



Palpi and entire head dark leaden metallic, almost black; antennas 

 grayish black throughout. Thorax and base of fore wing leaden metallic, 

 with a reddish and purplish luster which is most decided at base of 

 dorsum, where the leaden color is sometimes replaced by metallic 

 golden or silvery scales like those of the fascia and spots. Fore wing 

 dark brown, faintly shining; a silvery or golden metallic fascia with 

 reddish and purplish luster before the middle of the wing, is oblique in 

 its costal half, broader and nearly perpendicular in its dorsal half with 

 a slight projection along the fold; at two-thirds a silvery or golden 

 metallic costal and an opposite dorsal spot; beyond them in the middle 

 of the wing near the tip a silvery or golden spot. Cilia dark gray. 

 Hind wings broad, dark brown. Legs dark gray, hind tarsi paler tipped. 

 Abdomen dark gray, underside yellowish. Expanse: 7-7.5 mm. 



Type (cf) and four paratypes ( cf and 9), reared from 

 larvae mining leaves of the bulrush, Scirpus atrovirens, near 

 Cincinnati; imagoes May 13 to June 8. 



The larva makes a long transparent mine in a basal leaf, 

 extending from the base of the leaf upwards. In March and 

 the early part of April, they are mining in the old leaves, 

 indicating that feeding began in the preceding autumn. Later 

 the larva enters a new leaf at its base where it is not visible 

 unless the old outer leaves are torn away. . Each mine may be 

 four or five inches in length. The larvae feed at night only at 

 the upper end of the mine, retreating in day time down to the 

 base of the leaf, (sometimes beneath the surface of the water). 

 The larva is yellow, with an ill-defined irregular darker patch 



