126 INSECUTOR INSCITI.^ MKNSTRUUS 



sqiiarrosa, O. A. Stevens, collector. Other localities in North 

 Dakota (all taken by Mr. Stevens and all on G. squarrosa) are 

 McKenzie, August 5, 1913, 1 female; Minot, August 32, 1915, 

 3 females; Drake, August 24, 1915, 3 males; Williston, Aug- 

 ust 9, 1915, 1 female, 1 male. From Nebraska: West Point, 

 September 6, 1900, on Solidago rigida, 1 female; Lincoln, 

 September 2, 1901, on G. squarrosa, 1 male ; both collected 

 by the author. From Alberta, Canada: Medicine Hat, one 

 pair, J. R. Malloch, collector. 



Type, Cat. No. 199G9, U. S. Nat. Mus. 



This is the species which I and others have recorded from 

 the above-mentioned localities as Neopasites illinoiensis. 



I take great pleasure in naming this species after Mr. O. A. 

 Stevens, in recognition of his interest in the Apoidea. 



Holcopasites texanus, new species. 



Male. Length 5.5 mm. Head and thorax black, abdomen 

 red, legs brown, darker basally ; tibial spurs whitish ; antennae 

 brown, darker above and more reddish beneath toward base; 

 tegulse and tubercles ferruginous ; head and thorax closely 

 rather coarsely punctured; labrum with a thorn-like projection 

 medially near base ; sixth dorsal abdominal segment medially 

 on apical margin with a pygidium-like projection ; transverse 

 median vein interstitial ; first recurrent vein received by first 

 cubital cell near apex. 



Type locality, Cotulla, Texas. 



Type, Cat. No. 19970, U. S. Nat. Mus. 



Type taken May 10, 1906, on Verbesina encelioides ; para- 

 type taken May 9, 1906, on Monarda punctata, both by F. C. 

 Pratt. 



While this species resembles acanthochilus in having a spine 

 on the labrum, I do not think they can possibly be the same 

 species, especially since the location of the first recurrent vein 

 is different and in this character I have found no such variation, 

 although the venation of the different species is quite variable. 



Date of publication, December ii, 1915. 



