SUPERFAMILY TINEOIDEA 149 



cylindrical or cigar-shaped. The anterior end is round, 

 slightly funnel-form and bent downward so that the plane 

 of the opening forms an acute angle with the long axis of 

 the case. The posterior end has such a shape as might be 

 given the end of a plastic cylinder by pinching it between 

 two fingers and the thumb, the three lobes neatly closing 

 the opening (see pi. 2, fig. 8). 



After making these cases the larvae mine from their 

 shelters for about a month. Though they consume even 

 a larger quantity of food their work is probably less injuri- 

 ous at this time than when they are mutilating the buds. 



About the middle of June when the larvae become full-fed 

 they are from 5 to 5.3 mm. in length and 1.16 mm. in great- 

 est width. The ground color of the body is reddish-orange. 

 The usual sort of plates occur on the three thoracic and on 

 the anal segments. There are also small lateral plates on 

 the thoracic segments. 



Before pupation the cases are firmly sealed to the branches 

 and stand out from them almost at right angles. The larvae 

 then turn around with their heads towards the anal valve 

 and in a day or two transform to typical Coleophora pupae. 

 These are attached by the lateral spine projections of the 

 last segment to the button of silk on the twigs. The pupal 

 stage lasts from ten to twelve days. 



The yellowish steel-gray adults make their escape by 

 pushing between the three lobes which close the posterior 

 opening of the case. According to Mr. A. G. Hammer they 

 emerge most often in early afternoon and then for several 

 hours sit on the cases in a characteristic pose, facing away 

 from the branch with their wings folded over their bodies 

 and down over the sides of the case, their long slender an- 

 tennae pointing directly forward. Though they become 

 restless towards evening and fly about they return to 

 perch upon the cases. 



