24 WORKS ON NORTH AMERICAN ENTOMOLOGY. 



Lewis, H. W. — Vespinse of the United States and Canada. < Trans. 

 Amer. Ent. Soc, xxiv, pp. 169-192, 1897. 



von Dalla Torre, K. W. — Fam. Vespidse. <Gen. Ins., Fasc. 19, pp. 

 108, pis. 6, 1904. 



ANTHOPHILA (aNDRENID^ AND APID.F,). 



Cresson, E. T. — A list of the North American species of the genus 

 Anthophora. with descriptions of new species. < Trans. Amer. 

 Ent. Soc, ii, pp. 289-293, 1868-1869. 



Catalogue of North American Apidae. < Trans. Amer. Ent. 



Soc, vn, pp. 215-232, 1878-1879. 



A synonyinical reference list of the species. 



Patton, W. H. — Generic arrangement of the Bees allied to Melissodes 

 and Anthophora. <Bul. U. S. Geol. and Geog. Surv., v, pp. 

 471-479, 1879. 



Cresson, E. T. — On the North American species of the genus No- 

 mada. <Proc Ent. Soc Phila., n, pp. 280-312, 1863. 



On the North American species of several genera of Apidse. 



<Proc Ent. Soc Phila., n, pp. 373-411, 1864. 



List of the North American species of Bombus and Apathus. 



<Proc Ent. Soc. Phila., n, pp. 83-116, 1863. 



On the North American species of the genus Osmia. <Proc 



Ent. Soc. Phila., in, pp. 17^3, 1864. 

 Descriptions of new North American Hymenoptera in the 



collection of the American Entomological Society. Family 



Apida?. < Trans. Amer. Ent. Soc, vn, pp. 61-136, 201-214, 



1878-1879. 



Robertson, C. — North American bees. Descriptions and synonyms. 



< Trans. Acad. Sci. St. Louis, vn, pp. 315-356, 1897. 

 Synopsis of the North American species of the genus Oxy- 



belus. < Trans. Amer. Ent. Soc, xvi, pp. 77-85, 1889. 

 Descriptions of new species of North American bees. < Trans. 



Amer. Ent. Soc, xvm, pp. 49-66, 1891. 

 Table of local Andrena. 



Cockerell, T. D. A. — On some Panurgine and other bees. < Trans. 

 Amer. Ent. Soc, xxv, pp. 185-198, 1898. 

 Table of Calliopsis and Pamirginus. 



Baker, C. F. — American bees related to Melecta. < Invert. Pacif., 

 i, pp. 142-145, 1906. 

 Table of Eriocrocis. 



