ILLUSTRATIONS 
Fig. 
Fig. 
Fig. 
[Drawings and photographs by the author.] 
Plate I 
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 
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 
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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