BIOLOGY OF PARACOPIDOSOMOPSIS. 47 



in the two types of spermatogenesis outlined above, yet there is 

 great uniformity in their interpretations of the general character 

 of the processes involved. Our own work on Paracopidosomopsis 

 indicates that the spermatogenesis of this species is very similar, 

 not only as regards the general character of the process, but also 

 as regards many details, to the maturations of the European 

 hornet, Vespa crabro, as shown by the work of Meves and Dues- 

 berg. 



AUSTIN, TEXAS, 



February 6, 1917. 



REFERENCES. 

 Armbruster, Ludwig. 



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 Doncaster, L. 



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