96 IOWA ACADEMY OF SCIENCES. 



ORDER HEMIPTERA. 

 FAMILY CAPSID.^. 



PiBcilocapsus liaeatus, Fabr. Very plentiful. 



FAMILY COCCID^E 



Pulvinaria innumerabilis, Rathvon. 



FAMILY THRIPID.E. 



Thrips tritici, Fitch. 



ORDER ORTHOPTERA. 

 FAMILY ACRIDID.E. 



Caloptenus femnr-rubrum, De G. Very pleutifnl. 

 Calopteuus bivittatus, Say. Common. 

 Caloptenus differeutialis, Thos. Plentiful. 



ORDER THYSANURA. 



FAMILY PODURID.E 



Smynthurus arvalis, Fitch. Swarms in clover in May and June. Cannot 

 be found in late summer and autumn. Perhaps not very injurious. 



ORDER ACARINA 



Bryobia pratensis, Garman. Very plentiful, and doubtless injurious in 

 the spring. 

 Additional list of known and doubtful feeders. 

 ORDER LEPIDOPTERA. 

 J^AMILY NOCTUID.E. 



Plusia precationis. Guen. Adults very abundant in clover in September. 

 Doubtless an injurious insect. 



FAMILY DELTOIDES. 



Hypena humuli, Harr. Adults captured in clover in September. Doubtful. 



FAMILY PYRALID^. 



Nomophila uoctuella, S-V. Adults very abundant in clover in Septem- 

 ber. Very doubtful. 



ORDER OOLEOPTERA. 

 FAMILY CHRYSOMELID.E. 



Diaehus auratus, Fabr. (Authority ot Osborn.) 



Disonycha triangularis, Say. Swept from clover and very probably feeds 

 upon it. 

 Psylliodes punctulata, Welsh. Plentiful in May. ' 

 Pachybrachys othonus, Say. Taken sweeping. 

 Pachybrachys infaustus, Hald. Taken sweeping. 



FAMILY MELOID.E. 



Epicauta pennsylvanica, De G. Not often taken in clover. 



FAMILY OTIORHYNCHIDJB. 



Tanymecus confertus, Gyll. One specimen taken. A probable foe. 



