68 THE OPEN BOOK OF NATURE 
ing-ground for the insect collector! But, alas! 
insect collectors—that is, human ones—did not 
Spirifera striata (Carboniferous). 
Producta semireticulata Terebratula hastata 
(Carboniferous). (Carboniferous). 
Spirifera Walcottii  Rhynchonella rimosa Terebratula numis- 
(Jurassic). (Jurassic). malis (Jurassic), 
Fig. 19.—Some Fossit Bracurorops. 
live then, and the modern insect hunter has to be 
content with Miocene specimens in a fossil form. 
I have no doubt, however, that insects in all 
