NOTES ON ELACHISTA. II. (MICROLEPIDOPTERA). 



Annette F. Br.\un, 

 Cincinnati, Ohio 



This paper is a continuation of "Notes on Elachista with 

 Descriptions of New Species," which appeared in the March, 

 1920, number of this journal. Further rearing from mines 

 during the past season in the vicinity of Cincinnati has resulted 

 in the discovery of the life histories of several species pre- 

 viously known only in the adult stage, and in the addition of 

 two new species. 



Elachista cucuUata n. sp. 



Palpi white, second segment dark brown outwardly, third some- 

 times with fuscous shading outwardly. Antennse black. Face and 

 head white, except the collar, which is black. Thorax and extreme base 

 of fore wing black; a silvery fascia almost at base, broadest on the 

 dorsum; remainder of wing very dark brown; a silvery fascia just 

 before middle, curved or slightly angulated on the middle of the wing, 

 extends beyond the fold, but ends abruptly before reaching the dorsal 

 margin; a silvery triangular spot at tornus and a little beyond it, a 

 longer, usually oblique, costal silvery streak. Cilia dark brown. Hind 

 wings and cilia dark grayish brown. Legs dark brown, basal segments 

 in the male, and the tips of segments and a band around the hind tibiae 

 in both sexes silvery. Abdomen blackish, silvery beneath. Expanse: 

 8-9 mm. 



Type (cf) and twenty-seven paratypes, reared from larvas 

 mining leaves of Carex Jamesii, Cincinnati, Ohio; imagoes 

 May 13 to June 5. 



The mine made during the antumn on the overwintering 

 leaves is a narrow linear tract running down alongside the 

 midrib, not at all or but very little enlarged until spring. 

 Toward the end of March, the larva begins to feed actively 

 again, and the mine becomes transparent and occupies most 

 of the breadth of the leaf, which is inflated, due to the elevation 

 of the midrib into a ridge on the upper side. Mines were 

 collected March 31 and April 10; on the latter date most of the 

 larvae were full grown. 



The larva is red; head brownish red, thorax with mid- 

 dorsal line, abdomen with mid-dorsal and lateral lines pinkish. 

 The coloration of the larva is retained in the pupa, with median 



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