Add to ORKGIn various papers published during the past five years the senior author has called attention to the injuries caused in grass lands and pastures by the numerous species of Jassidae, which swarm, often by millions to the acre, upon various species of grasses
Studies on the Insect Fauna of Iowa Prairies. George O. Hendrickson pages 49-180 Clarification of Mi...
This paper represents the results of a study of some of the Thripidae of Iowa, and is based upon an ...
This widely distributed European species has been found in New York, Michigan and Iowa; and this sea...
The additions to my list of two years ago presented in this contribution number thirty and I have a ...
I desire here to make a few additions and corrections to the list of Hemiptera presented in last rep...
In various papers published in these Bulletins during the past five years attention has been called ...
During the past five years while the author was engaged primarily in a survey of insects his attenti...
Observations upon the grass feeding species of Jassidae have been directed particularly throughout t...
While the writer was connected with the Iowa Agricultural Experiment Station the potato leafhopper (...
The Parasites of Some Lepidopterous Stalk Borers in Iowa. George C. Decker pages 567-580 Eimeria bec...
The average person usually refers to almost any· kind of insect as a bug but, employing the latter...
From the difference in geological and floral conditions of the northwestern part of the state, we mi...
The following notes are extracted from Bulletin 32 of the Iowa Experiment Station, and embrace such ...
During the past season we have given especial attention to grass and clover insects, the importance ...
The grasshoppers and other Orthoptera of Iowa. Richard C. Froeschner 163 Blattidae 171 Mantidae 1...
Studies on the Insect Fauna of Iowa Prairies. George O. Hendrickson pages 49-180 Clarification of Mi...
This paper represents the results of a study of some of the Thripidae of Iowa, and is based upon an ...
This widely distributed European species has been found in New York, Michigan and Iowa; and this sea...
The additions to my list of two years ago presented in this contribution number thirty and I have a ...
I desire here to make a few additions and corrections to the list of Hemiptera presented in last rep...
In various papers published in these Bulletins during the past five years attention has been called ...
During the past five years while the author was engaged primarily in a survey of insects his attenti...
Observations upon the grass feeding species of Jassidae have been directed particularly throughout t...
While the writer was connected with the Iowa Agricultural Experiment Station the potato leafhopper (...
The Parasites of Some Lepidopterous Stalk Borers in Iowa. George C. Decker pages 567-580 Eimeria bec...
The average person usually refers to almost any· kind of insect as a bug but, employing the latter...
From the difference in geological and floral conditions of the northwestern part of the state, we mi...
The following notes are extracted from Bulletin 32 of the Iowa Experiment Station, and embrace such ...
During the past season we have given especial attention to grass and clover insects, the importance ...
The grasshoppers and other Orthoptera of Iowa. Richard C. Froeschner 163 Blattidae 171 Mantidae 1...
Studies on the Insect Fauna of Iowa Prairies. George O. Hendrickson pages 49-180 Clarification of Mi...
This paper represents the results of a study of some of the Thripidae of Iowa, and is based upon an ...
This widely distributed European species has been found in New York, Michigan and Iowa; and this sea...