POOD HABITS OP MALLARD DUCKS. 



27 



Table II. — Items of animal food identified in stom,achs of mallard ducks and the number 

 in which found — Continued. 



Kind of food. 



Total number of stomachs examined 



Class Insecta (Insects) — Continued. 

 Order HETEROPTERA (True Bugs)— Continued. 



Belostomatidse (giant water bugs). 



Zaitha sp 



Unidentified 



Naucoridee. 



Pelocoris femoratus 



Pelocoris sp 



Reduviidae (assassin bugs) 



Gerridse (water striders). 

 ■ Gerris marginatus 



Gerris sp 



Unidentified 



Saldidse (shore bugs). 



Salda sp 



Vehidae (water walkers). 



Mesovelia mulsanti 



Metrobates fiesperius 



Microvelia sp 



Unidentified 



Lygseidse. 



Myodocha senipes ^ 



Coreidse. 



Corizus sidx 



Leptoglossus phyllopus 



Leptoglossus sp •. 



Metnpodius terminalis 



Pentatomidae (stink bugs). 



Euschistus sp 



Nezara sp 



Unidentified 



Scutelleridse (shield bugs) 



CydnidEe. 



Geotomus robustus 



Unidentified 



Order HOMOPTERA. 



Membracidee (tree hoppers). 



Atymna sp '. 



Ceresa sp 



Platycotis sagittata 



Unidentifted 



Fulgoridse 



Delphacidse 



Jassidse (leafhoppers) 



Aphididse (plant-lice) 



Order MEGALOPTERA (Stoneflies). 



Chauliodes sp. (Do^son larvae) 



Corydalis sp. (Dobson larvae) 



Order PHRYGANOIDEA (Caddisflies). 



Mblanna sp 



Common 

 mallard. 



1,725 



33 



104 



1 



1 

 2 

 1 



Unidentified caddisflies and larvae. 



Black 

 duck. 



622 



Southern 

 black 

 duck. 



