LEPIDOPTERA 



615 



Fig- 753.- 

 ler.) 



-Wings of Solenobia. (After Spu- 



upon lichens. Figure 753 represents the venation of the wings of a 

 European species of this genus. 



Family TISCHERIID^ 



The vertex of the head 

 is clothed with erect, broad, 

 and short scales. The an- 

 tennas are long, with the 

 first segment small. The 

 maxillae are longer than the 

 head and thorax. The max- 

 illary palpi are small or ab- 

 sent. The labial palpi are 

 short, porrect, and without 

 bristles on the outer side of 

 the second segment. In the 

 front wings (Fig. 754), the 

 costal margin is strongly 

 arched, the apex is pro- 

 longed into a sharp point, 

 the discal cell is long and 

 narrow, the accessory cell is 

 very long, and the base of 



media is preserved. The hind wings are long and narrow and with 

 greatly reduced venation. (Fig. 754). The hind tibiae are very hairy_ 



Nearly all of our spe- 

 cies belong to the genus 

 Tischeria. The larvae 

 lack thoracic legs; most 

 of them make blotch 

 mines in the leaves of 

 oak; but the following 

 one infests apple; and 

 some other species infest 

 blackberry and rasp- 

 berry. 



The trumpet-leaf 

 miner of apple, Tischeria 

 malifoliella. — This spe- 

 cies infests the leaves of 

 apple over the Eastern 

 half of the United States and Canada, and sometimes does serious 

 injury. The larva makes a trumpet-shaped mine just beneath the 

 epidermis on the upper side of the leaf; the first half of the mine is 

 usually crossed by crescent-shaped stripes of white. There are two 

 generations annually in the North, and several in the South. The 

 larvae pupate in their mines. The larvae of the last generation line 

 their mines with silk and pass the winter in them. They transform 



2d A 



Fig. 754. — Wings of Tischeria marginea. 

 Spuler.) 



(After 



