Taxonomic utility of niche models in validating species concepts: A case study in Anthophora (Heliophila) (Hymenoptera: Apidae) Author Orr, Michael C. Biology Department, Utah State University, Logan, Utah, 84321, USA. Author Koch, Jonathan B. Biology Department, Ecology Center, Utah State University, Logan, Utah, 84321, USA. E-mail: jonathan. koch @ usu. edu Author Griswold, Terry L. USDA-ARS Pollinating Insects Research Unit, Logan, Utah, 84321, USA. E-mail: terry. griswold @ ars. usda. gov Author Pitts, James P. Biology Department, Utah State University, Logan, Utah, 84321, USA. text Zootaxa 2014 2014-08-04 3846 3 411 429 journal article 5353 10.11646/zootaxa.3846.3.5 1363c785-b3e0-4322-9283-a6d272748735 1175-5326 4928631 1C5284B7-982C-4DE3-B36C-E765169E9C7A Anthophora curta and A. squammulosa are separated as follows: 1 First submarginal cell lacking pubescence, except sometimes a small number of setae directly on vein where the cell borders the stigma ( Fig. 3a ); integument of male scape dark; unworn females with light setae of terga white ( Fig. 1a ); United States , Baja Peninsula, and northern tier of mainland Mexican states on United States border......................... A. curta - First submarginal cell of forewing pubescent near the border with the stigma (may be absent in worn specimens, Fig. 3a ); integument of male scape lightly maculated, at least in part, usually fully maculated from top to bottom of underside; fresh female specimens with the light setae of the terga golden ( Fig. 1a ); Nicaragua north to the Mexican states of Sinaloa and Durango................................................................................... A. squammulosa