28 Myron Harmon Sivenk 



Hamilton county (F. H. Snow) seem to be vegana. At Nichol- 

 son, southeastern North Dakota, O. A. Stevens took a typical 

 vegana July 4, 1913, on Liniim rigidum (No. 5532), while the 

 occurrence of both forms at Valley City, a little to the northwest, 

 has already been recorded {antea, XII, 1O6-07) ; two additional 

 males from that locality taken June 29, 191 3, on Gaillardia aristata 

 (O. A. Stevens, 5437 and 5438) seem from their size to be 

 modesta. An additional locality record for vegana is from Gran- 

 ville, North Dakota, July 8, 1914, on Petalostemum oligophyllum 

 (O. A. Stevens, 8307), ^. 



Nomada (Micronomada) texana Cresson. 



Additional Nebraska records are from Omaha, July 30-August 

 30, 1913, on Chamaechrista fasciculata and Helianthiis annuus 

 (L. T. Williams), 2 J, 9 J*, and from Fairmont, August 9, 1913 

 (G. W. Deming), 10 5> 2 J*. A female from Omaha, July 28, 

 1914, on Asclepias syriaca (L. T. Williams), forms a color 

 variety with the whole propodeum, except enclosure, bright red. 

 Kansas records are from Douglas county (F. H. Snow), 2 5> 

 Elhs county, July 17, 1912 (F. X. Wilhams), i J*, and Lane 

 county (F. X. Williams), thus indicating a distribution over 

 practically all of that state. 



Nomada (Micronomada) texana crucis Cockerell. 



Oak creek cayon, Arizona, 6,000 feet, July (F. H. Snow, 365 

 and 1882) I $, and August (366) i ^, and (1880), i t^. This 

 is the form recorded as N. texana by Viereck in Trans. Kansas 

 Acad. Sci., XX, part 2, p. 12. 



Nomada (Micronomada) simplicicoxa n. sp. 



?. Length 6.5-8 mm. Black, the mandible bases, rather small lateral 

 face marks lying midway between the inferior and superior ends of the 

 anterior orbital margin and occupying about one-half of its length, very 

 short postorbital lines above, collar, tubercles, tegulae, lobes of meso- 

 scutellum, band on metanotum, small anterior and larger posterior meso- 

 pleural spots which are sometimes narrowly connected, small spots on 

 posterior mesosternum, spots on last four coxae, elongated spots on base 

 and apex of posterior tibiae behind which are sometimes almost con- 

 nected to form a line, and abdominal maculations, pale whitish yellow. 



182 



