212 Journal New York Entomological Society. t^'°'- ^^-^iv, 



■ Male. — Differs from the female as follows : Head with yellow 

 color at the base of the mandibles, on labrum, clypeus, frontal shield, 

 and more or less of the areas between the clypeus and eyes; yellowish- 

 white hairs on cheeks, vertex, and some on the face ; head not as wide 

 as in female and face much narrower ; mandibles narrowed with only 

 two teeth present ; labrum much larger ; clypeus a little convex, with 

 longitudinal carina perceptible and impunctate ; ocellar pits much 

 smaller and rather inconspicuous ; eyes much larger, vertex flatter. 

 Thorax with a great abundance of dense yellowish-white hair, mixed 

 with black, on the back and sides. Sides of abdominal segments more 

 closely punctuated. Tibial scale much smaller and of only one lobe. 

 A pair of cercus-like pieces (penicilli) are present on the tip of the 

 seventh dorsal segment. 



Type. — Probably in the British Museum. 



Distribution.^Ca.\ii.orn{3., Arizona, , Oregon, Nevada. 



This species can easily be distinguished from other species of the 

 United States. Dr. L. O. Howard, in The Insect Book, figures Xylo- 

 copa orpifex on plate II, fig. 26. 



Xylocopa micans Lep. 

 7 Apis nastita Christ, Naturg. d. Insect, p. 130, T. 8, F. 5» 1791. 



Xylocopa micans Lepeletler, Hist. Nat. Insect. Hymen., II, p. 208, n. 58, (^, 1841. 



Xylocopa vidua Lepeletier, ^Ilist. Nat. Insect. Hymen., II, p. 210, n. 61, 2, 1S41. 



Xylocopa purpurea Cresson, Trans. Am. Ent. Soc, IV, p. 284, 5, 1872. 

 IXylocopa purpurea Smith, Trans. Ent. Soc. London, p. 299, n. 121, J, 1874. 



Xylocopa micans Patton, Can. Ent., XI, p. 60, 1879. 



Xylocopa micans Maidl, Ann. Nat. Hist. Hof.— Mus. Wien, p. 309, 1912. 



Xylocopa binotata Maidl, Ann. Nat. Hist. Hof. -Mus. Wien, p. 310 (nee. 

 Perez), 1912. 



Length of female, 15-18 mm.; of male, 20-22 mm. 



Female. — Head almost as wide as thorax, black with deep blue and 

 purple reflections, especially on the vertex and cheeks; punctures of 

 face small, fine and close ; grayish white hairs intermingled with some 

 black occur on clypeus, lateral areas of frons between the clypeus 

 and eyes, between the bases of antennre, and on the cheeks; mandibles 

 with four teeth, two large ones at the apex and two small ones on 

 the upper margin, which are often worn off; color of mandibles black 

 with a green spot at the base in many; labrum small and black, con- 

 sisting of one triangular lobe whose upper margin is very elongate, 

 and a small one on each side but hidden below ; clypeus flat, greenish 



