336 



JOURNAL OP ECONOMIC ENTOMOLOGY 



[Vol. 3 



Riker Mounts 



We use two sizes of these mounts, one 8 x 12 inches, the other 

 6^ X 81/2 inches. For inflated larva? used in the Rikers we use an 

 improvised ''sarcophagus" or small glass tray like the one shown in 

 the illustration, Fig. 2, PI. 23, to prevent them from being crushed. 

 This is made with glass slips, cut to proper size with a glass cutter and 

 fastened at the edges and corners with strips of black passe partoat 

 or strips of lantern slide binding. The mounts are set by pairs into 

 frames made for the purpose, as shown in Fig. 2, PI. 22. 



The framework of the frames is convex or rounded, as seen from 

 the front, and is painted with black carriage paint and varnished. 

 The back is exactly the same as in picture frames. 



These mounts are set up on racks exactly like those used for the 

 insect cases, except that they are somewhat smaller. Quite a common 

 arrangement of these mounts for exhibition is shown in Fig. 3, PL 22. 



A partial list of the mounts is as follows : 



Large Mounts. 8 x 12 



So far as possible the complete life series of each insect named is 

 shown. 



Frame 1 (2 mounts to each frame). 



fVelleda Lappet Moth. 



/Tobacco Worm and Moth. 



Bagworm or Basket Worm. 

 Frame 2. 



Fall Canker Worm. 



Elm Leaf Beetle, 

 Frame 3. 



Grapeberry Worm. 



Raspberry Byturus. 

 Frame 4. 



Winter Forms of Insect Life. 



Winter Forms of Insect Life. 

 Frame 5. 



Gypsy Moth. 



Brown-Tail Moth. 

 Frame 6. 



Texas Fever Tick. 



Cotton Boll Weevil. 



Frame 7. 



Winter Forms of Insect Life. 



Question Sign Butterfly. 

 Frame 8. 



f Walnut Datana. 



1 Apple Datana. 



Elm Leaf Beetle. 

 Frame 9. 



Cotton Boll Weevil. 



Spring Canker Worm. 

 Frame 10. 



Abbott Sphinx. 



Colorado Potato Beetle. 

 Frame 11. 



Cecropia Moth. 



Promethea Moth. 



Small Riker Mounts. 6U. x 8 1/2 



Frame 1. 



Question-sign Butterfly. 



Imported Cabbage Butterfly. 

 Frame 2. 



lo Moth. 



Pipevine Swallowtail Butterfly. 



Frame 3. 



Apple Datana Moth. 



Striped Cucumber Beetle. 

 Frame 4. 



Saddleback Caterpillar. 



Catalpa Sphinx Moth. 



