116 CARL J. DRAKE Vol. XXII, No. 4 



Miss. In company with P. harnedi the writer collected spec- 

 imens of Ranatra fusca P. S. (Bueno & Montd.), Notonecta- 

 hoiuardi Bueno, Corixa n. sp. (fide Hungerford), Benacus griseus 

 (Say), Belostoma flumineum Say, Belostoma lutarium (Stal), 

 Pelocoris femoratus (P. B.). The following species were quite 

 common upon the surface of the water: Mesovelia mulsanti 

 White, Hydrometra martini Kirk., Hydrometra australis Say, 

 Gerris canalicidatus Say, Tenagogonus hesione Kirk., Trepobates 

 pictus (H. S.), Microvelia hinei Drake, Velia hrachialis Stal, and 

 Merragata brunnea Drake. Micracanthia humills (Say) was 

 captured upon some floating aquatic plants and Gelastocoris 

 cidatus Fabr. was quite common upon the moist ground 

 bordering the pond. 



