296 ENTOMOLOGICAL NEWS. [July, '07 



2. Bombus pennsylvanicus (De Geer). (=fervida Fabricius.) 

 Present over the entire State, but common only in the higher 



parts, especially in Sioux County, where it is abundant from 

 the middle of May to the middle of September. Eastward, 

 it has been captured at Lincoln, Omaha, Weeping Water, 

 West Point, Neligh, Spring-view and Gordon. It has been taken 

 principally on Astragalus, Rubus, Petalostemon, Monarda, 

 Mentha, Carduus, Solidago and Helianthus. 



3. Bombus americanornm Fabricius. 



Distributed as Bombias auricomus, which it so much resem- 

 bles but everywhere more common, probably our commonest 

 Bombus. Lincoln, Omaha, South Bend, Cedar Bluffs, Weep- 

 ing Water, Nebraska City, West Point, Neligh, Broken Bow 

 and Brown, Rock and Hitchcock Counties. Not yet captured 

 in Sioux County. Season as that of Bombias auricomus. Our 

 plant records for this species include Astragalus, Rubus, Mains, 

 Petalostemon, Verbena, Carduus, Cassia, Psoralea, Monarda, 

 Solanum, Vernonia, Solidago, Carduus and Helianthus. 



4. Bombus virginicus (Olivier). 



Eastern Nebraska, common. Specimens are from Lincoln 

 Omaha, South Bend, Cedar Bluffs, Weeping Water, Meadow, 

 Nebraska City, Falls City and Nemaha City. This is the first 

 Bombus to appear in the spring, flying about April 20 on 

 Primus and Ribes. Later it is found commonly on Rnbus, 

 Cassia and Petalostemon. 



5. Bombus ridings!! Cresson. 



South Bend and Omaha, May 17-20 on Rubus occidcntalis, 

 several female specimens. We have never taken workers or 

 males in the State. 



6. Bombus consimilis Cresson. 



Entire State, specimens from Lincoln, Omaha, South Bend, 

 Weeping Water, Meadow, Cedar Bluffs, West Point, and 

 Sioux County. Found principally on Rubus, Lonicera and 

 Petalostemon. All of our old Nebraska records of B. vagans 

 refer to this species. 



