1 68 NEW YOKK STATE MTSEUM 



face of the last abdominal segment is protected by a dark brown, heavily 

 chitinized, subtriangular plate. 



The delicate buff colored and gray marked moth has a wing spread of 

 nearly ; , inch. Tlie fore wings have a nearly white costal border and are 

 tipped with dark buff. Both pairs are beautifully margined with long, hair- 

 like scales. The antennae are setaceous, white, ringed with brown. The 

 normal resting position of this moth is with the wings slighth" diverging and 

 sloping a little from the median line, the antennae being appressed and 

 extended forward in a straight line. 



Remedial measures. 1 his species, like tlie more common cigar case 

 bearers on our fruit trees, should be easily controlled by early spraying with 

 an arsenical poison, making the application at the time the leaves begin 

 to start. 



Maple trumpet skeletonizer 

 Thiodia sigiiata)ia Clem. 



Red maple leaves folded in August or September, containing a long, tapering, 

 blackish trumpetlilce tube, with the adjacent tissues of the underside skeletonized, are 

 very characteristic of this insect. 



This species is one whicli has attracted comparatively little attention 

 in economic literature, though it seems to be a rather common form on the 

 red, and to a much smaller extent, on the sugar maples of Nassau X. \'. 

 It was also abumlant on ma])lcs at Onteora X. Y. in 1904. This form is 

 probably overlooked as a rule because it appears on the trees so late that 

 the injury is very slight, even though the caterpillars be abundant. The 

 work of this insect is very characteristic. The larger leaves are invariably 

 folded to form an irregular, loose retreat with the under surface, on which 

 the caterpillar feeds, inside. The folded, partly skeletonized leaves can be 

 detected at a considerable distance, and on o|)ening them there is a 

 conspicuous tapering, frequently crooked larval tube sometimes nearly 

 2 inches in length. This structure is composed of web with excrement on 

 the outside, and increases in size with the develo])ment of the caterpillar. 



Description. The nearlv full grown caterpillar is about '2 inch in 



