84 AIyro)i Harmon Sivenk 



Type. — Harrison, Sioux county, Nebraska, August 20, 1912 

 (R. W. Dawson), ^. 



A very distinct and beautifully marked species. In Cockerell's 

 table {Bulletin 94, Colorado Exp. Sta., pp. 70-75) it runs to A^". 

 aquilaruin Ckll., to which it is related, but is very much larger 

 and otherwise different. It is even closer to A'^. dacotensis, de- 

 scribed on a subsequent page, but differs from that species also 

 in many ways. It is named after Mr. R. W. Dawson, its collector, 

 in recognition of his work on the blister-beetles (Meloidae). 



SPECIES FROM OUTSIDE NEBRASKA 



Nomada (Holonomada) flavopicta n. sp. 



?. Length 7.5 mm. Black; the clypeus, broadly triangular lateral face 

 marks which end in a point slightly above level of insertion of antennae, 

 labrum, basal two-thirds of mandibles, line under eye, scape in front, 

 collar, tubercles, round pleural spot beneath tubercles, tegulae, large spots 

 involving lobes of mesoscutellum, line on metanotum, legs (except the 

 coxae, trochanters, broad lines on first four femora above and all of 

 posterior femora except a broad line on anterior face, broad lines on tibiae 

 behind, and a narrow line on hind basitarsi behind, all of which points are 

 contrastingly black), broad complete bands on' tergites 1-6 which are 

 gradually narrowed toward the middle on anterior margins of 1-3, and 

 whole of venter except the first sternite, bright lemon yellow. Head and 

 thorax coarsely and closely punctured. Antennal joint 3 distinctly longer 

 than 4, the flagellum dark red with a black line above. Wings uniformly 

 slightly shaded, the nervures and stigma ferruginous, the basal nervure 

 slightly basad of transverso-medial, both the second and third sub- 

 marginal cells greatly narrowed above. Head and thorax with rather 

 copious, short, erect grayish white hair. 



Type. — Pullman, Washington, May 14, 1898 (collector ?), 5- 

 This species is apparently related to A^. edivardsii Cresson, but 

 differs in the lack of yellow lines or spots on the sides of the 

 mesoscutum or stripes on the disk of the mesoscutum, black 

 posterior orbits, lack of a yellow spot in front of middle ocellus, 

 etc. From A^. pecosensis Ckll, it dift'ers in the wholly black 

 propodeum, lack of a supraclypeal mark, small pleural spot and 

 more abundant thoracic hair. It is, in fact, closely related to N. 

 superba Cresson, but is much smaller, lacks the angles on the 

 sides of the propodeum above, has the legs wholly yellow and 



84 



