522 Illinois State Laboratory of Natural History. 



Plea: 1 Gambusia patruelis, Sept. ; 1 Ictalurus punctatus, May. 



Corisa : 2 Perca lutea, yg. ; 2 Hadropterus aspro, Aug. ; 2 Per- 

 cina caprodes, July, Sept. ; 6 Micropterus dolomiei, yg. ; 5 

 M. salmoides, yg.; 4 Lepomis pallidus, June, July, Nov.; 4 

 yg.; 1 Lepomis megalotis, June; 5 L. cyanellus, yg.; 1 

 Chaenobryttus gulosus, Oct.; 1 yg. ; 1 Ambloplites rupestris, 

 yg.; 4 Pomoxys, Apr., May.; 4yg.; 1 Centrarchus irideus, 

 yg. ; 3 Aphredoderus sayanus, July, Sept. ; 1 Esox vermicu- 

 latus, 4 in., June; 1 Zygonectes dispar, July; 2 Z. notatus, 

 Sept., Oct.; 1 Dorosoma cepedianum July; 3 Semotilus 

 atromaculatus, July, Sept.; 1 Notropis megalops, Aug.; 1 N. 

 whipplei, July; 2 Ictiobus urus, July, Aug.; 2 I. cyprinel- 

 la, July; 1 Ictalurus punctatus, Apr.; 1 Amiurus nebu- 

 losus, Oct.; 1 Amia calva, June; 1 yg.; 1 Polyodon 

 spathula, Aug. 



C. alternate*: 1 Perca lutea, yg. ; 3 Micropterus salmoides, yg.; 

 1 Pomoxys, Apr.; 3 Zygonectes'notatus, Sept.; 1 Ictalurus 

 punctatus, Apr.; 1 Polyodon spathula, May. 



C. signata : 4 Micropterus dolomiei, yg. 



C. tumida: 2 Perca lutea, yg.; 1 Hadropterus aspro, Aug.; 8 

 Micropterus dolomiei, yg.; 3 M. salmoides, yg.; 1 Lepomis 

 pallidus, Nov.; 1 L. megalotis; 1 L. cyanellus; 1 yg.; 1 

 Chaenobryttus gulosus; 2yg.; 3 Ambloplites rupestris, yg. ; 

 1 Pomoxys, July; 1 yg.; 1 Centrarchus irideus, July; 1 

 Hyodon tergisus, 2| in., June; 1 Amiurus nebulosus, 3^ 

 in., June. 



Homoptera: 1 Gambusia patruelis, Sept.; 1 Coregonus artedi, 

 Oct.; 1, 6 in., Aug.; 1 Hyodon tergisus, Oct.; 2 Notropis 

 whipplei, Apr., Aug.; 1 Ictalurus punctatus, May. 



Tettigonince: 1 Labidesthes sicculus, Oct.; 1 Zygonectes nota- 

 tus, Oct. 



Diedrocephala mollipes: 1 Coregonus artedi, Oct. 



Typhlocyba: 1 Coregonus artedi, 2 in., Aug.; 1 Clupea chryso- 

 chloris, 2J in., Sept. 



Aphididce: 1 Gambusia patruelis, Sept.; 3 Zygonectes notatus, 

 Sept., Oct.; 1 Notropis, yg.; 3 N. atherinoides, July, Aug. 



Aphis: 1 Labidesthes sicculus, Oct.; 1 Zygonectes notatus, 

 Oct. 



Thrips: 1 Labidesthes sicculus, Oct.; 1 Zygonectes notatus, 

 Oct.; 1 Pundulus diaphanus, Oct.; 1 Moxostoma, yg. 



