272 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.43. 



pimella C'ockerell, 1906. Arizona. 



A small species resembling agilis. 

 pinguis Cresson, 1878. Mexico (Sumichrast). Tab. 1. 



New description. — Trans. Amer. Ent. See, vol. 24, p. 157. 

 pinguis velutinella Cockerell, 1897. San Rafael, Mexico (C. H. T. Townsend). 



The abdominal pile yellowish white, 

 praelauta Cockerell, 1905. Oak Creek Canon, Arizona (Snow). Tab. 1. 

 puUata Cresson, 1865. Cuba. Tab. 1. 

 pygmaea Cresson, 1872. Texas (Belfrage). Tab. 1, p. 91. 



* raphaelis Cockerell, 1896. San Rafael, Mexico (Townsend). Tab. 1, 2. 

 Quirigua, Guatemala (W. P. Cockerell). 



Type.—QoX. No. 3355, U.S.N.M. 

 rivalis Cresson, 1872. Texas (Belfrage, Boll). Tab. 1. 



* rufodentata Smith, 1854. St. Vincent, Grenada. 



* ruldosensis Cockerell, 1896. Ruidoso Creek, New Mexico. 

 Same as confusa. 



Cotype.— Cat. No. 3361, U.S.N.M. 



* rustica Say, 1837. Indiana. 



saponellus Cockerell, 1908. Soap Lake, Grand Coulee, Washington. 



Female; looks like Xenoglossodes imitatrix. 

 semitristis Cockerell, 1905. Oak Creek Canon, Arizona (Snow). Tab. 1. 

 senilis Smith, 1854. Mount Pleasant, Ohio. 



Same as denticulata. Provancher records it from Ottawa, Canada. 

 simillima Robertson, 1897. Illinois (Robertson). Tab. 2, 4. 



Comparison with perplexa; Psyche, October, 1906, p. 111. 

 smithii Dalla Torre, 1896. 



Notes on type. — Trans. Amer. Ent. Soc, vol. 31, p. 328. 



* snowii Cresson, 1878. Colorado (F. H. Snow). Tab. 1. 

 Pubescence white. 



Comparison with M. agilis and aurigenia; Tucker, Trans. Kansas Acad. Sci., 1909, 

 pp. 278-281. 



* sphseralcese Cockerell, 1896. Santa Fe, New Mexico (Cockerell). Tab. 1. 

 Male clypeus black. 



Paratype.— Cat. No. 3360, U.S.N.M. 

 spissa Cresson, 1872. Texas (Belfrage). Tab. 1. 



* stearnsi Cockerell, 1905. Los Angeles, California (Davidson). Tab. 1. 

 Paratype.—C&t. No. 15070, U.S.N.M. 



snavis Cresson, 1878. Colorado (Morrison). Tab. 1, p. 91. 



"A very pretty little species, the abdomen (female) appearing white with four 

 narrow shining black bands." (Cresson.) Flagellum rufo-testaceous beneath. 



* suffusa Cresson, 1878. Texas (Belfrage, Heiligbrodt). Tab. 1. 

 See M. petulca suffusa. 



tenuitarsis Cockerell, 1905. Arizona (F. H. Snow). Tab. 1. 

 tepaneca Cresson, 1878. Mexico (Sumichrast). Tab. 1. 

 tepaneca aschenbomiana Cockerell, 1912. Guatemala (W. P. Cockerell). 

 tepida Cresson, 1878. Nevada (Hy. Edwards). Tab. 1, p. 85. 

 texana Cresson, 1872. Texas (Belfrage, Boll). Tab. 1. 

 texana flaverise Cockerell, 1906. Roswell, New Mexico (Cockerell). 

 Visits Flaveria. 



* thelypodii Cockerell, 1905. La Cueva, Organ Mountains, New Mexico (Townsend). 



Tab. 1, 3. 

 townsendi Cockerell, 1896. Las Cruces, New Mexico (Townsend). Tab. 1. 

 Male large and robust, the abdomen covered with fulvous hair. 



* trifasciata Cresson, 1878. Porto Rico (Krug). Tab. 1. 



"This may prove to be the female of mimica." (Cresson.) Jamaica, 



