no. 2087. DESCRIPTIONS OF NEW HYMENOPTERA, 9— CRAWFORD. 5 79 



with more or less of the propodeum fulvous. The species varies con- 

 siderably; as some specimens have the mesonotum and part of the 

 plurae fulvous, and the black on the abdomen is also sometimes 

 almost lacking. In none of the females of the series before me are the 

 scutellum and metanotum black and in only two males is this true. 

 In a few males these sclerites are only obscurely reddish. 



PANURGINUS PIERCEI Crawford. 



Mr. O. A. Stevens has this species from Fargo, Dickinson, and 

 Valley City, North Dakota, taken on Helianthus annuus, H. petiolaris, 

 H. maximiliani, H. scaberrimus, and Grindelia squarrosa. Of the 

 four males taken, three have normal face markings, but the fourth 

 had the dog-ear marks yellow. In two of these specimens the 

 depressed median line on the clypeus is not very distinct 



PANURGINUS MALVASTRI Swenk and Cockerell. 



Dickenson,, North Dakota., on Malvastrum coccineum July 4, 1912, 

 two females (C. H. Waldron, collector) in the collection of Mr. O. A. 

 Stevens, one of which has been given to the United States National 

 Museum. 



PANURGINUS SIMULANS Swenk and Cockerell. 



Fargo, North Dakota, on Helianthus annus (cultivated), H. maxi- 

 miliani, 9 males, 11 females; on Taraxicum taraxicum 1 male, Dick- 

 inson, North Dakota, on H. petiolaris 1 male. All from the collection 

 of O. A. Stevens. Of the 10 males only 3 have any yellow on the 

 front of the scape. 



PANURGINUS RENIMACULATUS Cockerell. 



Mr. Stevens took the sexes of this species together, and the male 

 is not the one assigned to the species by Swenk and Cockerell. The 

 true male resembles that of P. nebrascensis very closely but has the 

 flagellum light yellowish-red beneath (in nebrascensis it is dark or at 

 most obscurely reddish). 



Mr. Stevens took 30 females at Fargo, North Dakota, on Aster 

 exiguus, A. chinensis, A. paniculatus, Grindelia squarrosa, and Boltonia 

 asteroides and one at Grand Forks on 67. squarrosa; 15 males at 

 Fargo and one at Grand Forks on 67. squarrosa; also one at Dickinson 

 on H. petiolaris. 



PANURGINUS INNUPTUS Cockerell. 



There is in the collection of the United States National Museum 

 one male which I collected at West Point, Nebraska, on Bidens, which 

 has the labrun yellow. Mr. Stevens took this species and also P. 

 nebrascensis at Fargo, North Dakota. 



In his collection there are also some females which do not belong 

 to any of the above species, so that there are still some forms to be 

 recorded from his region. 



