NAMES APPLIED TO THE NORTH AMERICAN BEES OF 

 THE GENERA LITHURGUS, ANTHIDIUM, AND ALLIES.^ 



By T. D. A. COCKERELL, 



Of the University of Colorado. 



The Anthidiine and Lithurgine bees, representing two groups of 

 Megachiiidae, are interesting on account of their habits, and fre- 

 quently well-marked or even very peculiar structural characters. 

 The Anthidiines, nearly always spotted or banded with yellow on 

 the abdomen, are very well represented in our fauna, and are even 

 to be found in the IMiocene deposits of Colorado. Lithurgus, on the 

 other hand, has only a few species in our fauna, although it is an 

 old genus, found in the European Miocene, and widely spread over 

 the earth, even to Australia and the islands of the Pacific. 



LIST OF SPECIES. 



Genus ANTHIDIUM Fabricius, 



A genus of many species, found in most parts of the world, but 

 absent from Australia and New Zealand. 



The females use cottony fibers in making their nests, and are called 

 by Fabre "Cottoniers." 



For a discussion of the Palearctic genera and groups included by 

 authors in Anthidium, see Entomologist's Record, vol, 21, No. 12. 



Tables. 



(1) Cockerell, Bull. So. Cal. Acad. Sci., vol. 3, 1904, pp. 56-58. (Males.) 



(2) Cockerell, Proc. U. S. Nat. Mus., vol. 40, 1911, p. 249. 



(3) Friese, Daa Tierreich, Megachilinae, Uef. 28, 1911, pp. 379-381. 



(4) Friese, Das Tierreich, Megachilinse, Uef. 28, 1911, pp. 391-392. 



(5) Cockerell, University of Colorado Studies, vol. 4, 1907, pp. 249-250. 



(6) Swenk, University [of Nebraska] Studies, vol. 14, no. 1, 1913, pp. 9-11. 

 americanum Friese, 1911. Tab. 4. 



New name for A. maculatum Smith, preoccupied. 



1 The asterisk (*) indicates that the species is in the collection of the United States National : 

 Some species sent to the United States National Museum by Prof. T. D. A. Cockerell labeled "cotypes," 

 are herelisted as "paratypes," since Professor Cockerell ases the name "cotype" in the sense in which 

 the museum uses "paratype." The museum has considerable material in the Anthidiine group and 

 when this material is all determined the number of species in its collection will be considerably increased. 

 Of the 107 names (fossil species omitted) in this list in the Anthidiine bees, 47 are represented by speci- 

 mens in the collection. Of this 47, 20 are types or paratypes.— J. C. Crawford. 



Proceedings U. s. National Museum, Vol. 47— No. 2045. 



87 



