25 



linn equilaterally triangular, being remarkably lung and narrow, where in 

 other families it is transverse and about a third shorter than wide. 



Pleurum. — The epimera and episterna are narrow and rather long com- 

 pared with the Tineidce, while the coxce and troehantines aie of remarkable 

 length and slenderness. 



Tineidce (Scardia boleti Fabr., an European species, pi. 7, tig. 10, 10a). — 

 In this family the thorax is much shorter than in the Pterophoridce, and the 

 Hanks less oblique. 



Tergum. — Mesoseutum much larger proportionally than in Pterophorus, 

 and more scutellate in shape; scutellum short and small, the surface very 

 convex. Metathorax : scutum large, not separate, united for about half its 

 length by suture; the pnescutum large and distinct, triangular in shape. 

 The scutellum is of the shape usual in other families, but longer and narrower, 

 though still very different from that of Plerophorus. 



Pleurum. — While the thorax is still long and slender, it is much shorter 

 than in Pterophorus. The thoracic segments seen laterally are very oblique, 

 and the costa and troehantines of all these segments are very long compared 

 with the epimera and episterna". 



Tvrtrickhc (Tortrix, sp. undetermined, allied to T. rosaceana Harris, pi. 

 7, fig- 11, 11a). — Here the thorax is very short and subspherical. 



Tergum. — Mesoseutum very short, and rather broad; scutellum rather 

 large in proportion to the scutum, both cuds pointed much the same; meta- 

 praescutum obsolete ; scutum short, the two halves just touching on the median 

 line of the body; scutellum very short, but distinctly triangular. 



Pleurum. — The thorax is much shorter, more spherical than in the 

 Ti ne idee ; the flanks are much more vertical than in the Tlneidce, and are 

 in this respect much as in the higher families. The epimera and episterna 

 are broad and long in proportion to the coxae and troehantines united. The 

 latter are short and thick, somewhat swollen, much more so than in any of 

 the allied families. 



PyraliddB (Boti/s sp., pi. 7, fig. 12, 12a). — The thorax in this family is 



usually rather long and slender; that of Botys is selected as a mean between 



the extreme forms. 



Tergum. — Mesoseutum moderately long and large, much longer than in 



Tortrix; the scutellum very large, about as large in proportion to the thorax 



as in Pterophorus. it is slightly longer than broad, and nearly equilaterally 

 4 P u 



