122 IOWA ACADEMY OF SCIENCES. 



Anasa armigcra Say. Not abundant. 



Alydus eurinus Say. Common. 



Alydus ater Dallas. Variety of the preceding.? 



Alydus o-spi7ios2is. Not common. 



Alydus pluto \]h\.'> 



Protenor belfragei Hagl. 



FAMILY BERYTIDiE. 



Jalysus spinosus Say. Not common, or but seldom seen. 

 Corizus hyalinus Fab. 



Corizus nigristernum Sign. Common, often swept from low herbage. 

 Leptocorisa trivittatus Say. Common in the west part of the State, 

 sometimes destructive to Box Elder trees. 



FAMILY LYG.KID.E. 



Nysius angustatus Uhl. False Chinch Bug. Very abundant at times; 

 resembles chinch bug in size and form, but is of a light gray color, feeds 

 maioly on purslane, amaranths, etc., but may injure potatoes and other 

 crops. 



Orsillacis prodtictaVhl.t One specimen. 



Ichnorhynclms didymus Zett. Not common; appears to be more ^enti- 

 ful westward. 



Cymus angustatus Stal. Common. 



Cymodema tabida Spin. 



Isclmodemus falicus- Say. Common. 



Blissus leuco2yter7is Say. " Chinch bug." Very abundant at times. 



Geoeoris limbatus Stal. 



Qeocoris bullatus Say. Common; affects sugar beets. 



(Edancala dorsalis Say. Not common. 



Ligyrocoris sylvestris Linn. Common. 



Ligyrocoris constrictus Say. Several specimens from Des Moines.. 



Myodochn serripes Oliv. Rather rare. 



Pamera basalis Dallas. Common. 



Pamera bilobata Say. Rare. 



Cnemodus mavortius Say. 



Trapezonotus nebulosiis Fall. Common. 



Erablethis arenarius Linn. Not rare. 



Rhyparochromus minutus Uhl. (MSS.) 



Eremocoris fertis Say. Not common. 



Microtorna carbonaria Rossi. Not rare; Ames, Iowa City, Des Moines. 



Peliopelta abbreviata. Uhl. Common. 



Melanocoryphus bicrucis Say. Rare at Ames. 



Lygceus redivatus Say. Common. 



Lygmus turcicus Fab. Common. 



Oncopelttis fasciatus Dallas. Not common. 



FAMILY CAPSID^, 



Megaloccrcea dcbilis Uhl. Abundanr. 

 Megaloccrcea rubicunda Uhl. 

 Miris affinis Rent. Common. 



