ILLUSTRATIONS 



[Drawings and photographs by the author.] 



Plate I 



Fig. 1. Five-chambered mine of Endelus bakeri Kerrem., in Asplenium 

 leaf, showing crescentic mass of excreta used to close the 

 entrance to chamber 5, and zigzag line of frass left by the larva. 



2. Two-chambered mine of Endelus bakeri, showing two exit holes 



gnawed by an adult in emerging from the leaf. 



3. Mine made in laboratory by Endelus bakeri, showing daily progress 



of a larva. Point 1 was reached two days after hatching; point 

 2, the next day; and so successively until one month thereafter 

 point 12 was reached. 



4. Leaf of Asplenium sp. with serpentine mine of Endelus calligraphus 



sp. nov., on both sides of the midrib. The total length of the 

 mine is 111 centimeters. The dots represent excreta, and the 

 enlarged chamber at the base of the leaf is the point of pupation, 

 with the exit hole of the adult. 



5. Leaf of Asplenium sp. with mine of Endelus calligraphus entirely 



on one side of the midrib. This mine was 89 centimeters long. 

 Note the digression of the mine around a hole near the base 

 of the leaf. Note also that the eggs were laid in these two 

 leaves near the apex and the pupal chambers were made near 

 the base. 



6. Egg of Endelus bakeri, very greatly enlarged. 



7. Unusual style of mine made by Endelus bakeri, in which the larva 



has turned back and excavated its pupal chamber near the 

 point where the egg was laid. 



Plate II 



Fig. 1. Endelus bakeri Kerrem., half outline of adult. 



2. Endelus calligraphus sp. nov., half outline of adult. 



3. Endelus bakeri, larva, dorsal aspect. 



4. Endelus bakeri, larva, ventral aspect of abdomen. 



5. Endelus bakeri, adult, profile of head and thorax. 



6. Endelus calligraphus, adult, profile of head and thorax. 



7. Endelus bakeri, adult, ventral aspect of head and thorax. 



8. Endelus calligraphus, adult, ventral aspect of head and thorax. 



9. Endelus calligraphus, adult, antenna. 



10. Endelus bakeri, adult, antenna. 



11. Diagram, showing facial angle of Endelus bakeri. 



12. Diagram, showing facial angle of Endelus calligraphus. 



Plate III 



Fig. 1. Leaf of Asplenium nidus L., showing eggs and blotch mines of 

 Endelus bakeri. 

 2. Leaf of Asplenium nidus L., showing, in addition to mines, white 

 spots caused by feeding of adult beetles of Endelus bakeri. 



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