NEW SPECIES OF ANBRENA FROM NORTH AMERICA. 307 



pale instead of fuscous or black, and the face is not so broad. 

 The fimbriata used for comparison is from Hartford, Ct., Septem- 

 ber "l5th, 1895 (S. N. Dunning). A. electrica, the other New 

 Mexico species having dark hair at the apex of the abdomen, 

 differs at once by the pale pubescence of the tarsi, and the dis- 

 tinct though minute and sparse punctures of the abdomen. 



(4.) Andrena mentzeli^, n. sp. 

 ? . Length 12i mm. ; black, the pubescence pale yellow, rather 

 long and dense, whitish ou thorax beneath, legs, and abdomen. Cly- 

 peus naked except at extreme sides, very shiny, impunctate in middle, 

 punctured at sides ; flagellum dark, with the faintest coffee-brown tint 

 beneath ; facial depressions covered by minute appressed pubescence ; 

 vertex sparsely but distinctly punctured ; hair of occiput and cheeks 

 long and abundant ; process of labrum broad and truncate ; mesothorax 

 dull, minutelij tessellate, practically uirpunctate; enclosure of metathorax 

 minutely roughened, ill-defined ; tegulae obscure testaceous, appearing 

 black in some lights; wings dull hyaline, apical margin somewhat 

 dusky ; stigma ferruginous with a dark margin ; nervures fuscous ; 

 legs black, small joints of tarsi rufescent; abdomen only feebly shiny, 

 minutely tessellate, with minute very sparse punctures ; margins of 

 all the segments with bands of long pale hairs ; apex with slightly 

 yellowish hair. Venter with white hair. 



Hab. At flowers of Mentzelia mida, Santa Fe, New Mexico, 

 August 3rd (CklL, 4132). 



Cresson's description of A. miserabilis nearly applies to A. 

 meiitzel'KB, but the nervures of miserabilis are honey-yellow, and 

 the abdomen is " shining, extremely minutely punctured." Pro- 

 vancher, who recognized miserabilis in a female caught at Ottawa, 

 says the abdomen is " brilliant," and that the hair bands on the 

 second and third segments are more or less interrupted. A. 

 hirticincta differs from mentzelice by the brown pubescence of the 

 tibiae and tarsi and the black hairs of the end of the abdomen. 

 A. permitis differs at once by the densely punctured abdomen. 

 A. texana is only known in the male, but it is not likely to belong 

 with our insect, on account of its shining abdomen. From A. 

 apacheoriim the present species is known by its larger size, and 

 the light pubescence at the end of the abdomen. 



(5.) Andrena grandior, n. sp. 

 ? . Length 11 mm. ; black, with short sparse ochraceous pube- 

 scence. Belongs to Eobertson's second group (Tr. Am. Ent. Soc, 

 1891, p. 50). Facial quadrangle about as broad as long ; lateral facial 

 depressions well-marked, covered with appressed pubescence ; a patcii 

 of white hair on each side of the antennae ; clypeus exposed, shining, 

 strongly and closely punctured, with no distinct smooth line ; vertex 

 with extremely large punctures ; mesothorax with very large and 

 strong, close punctures ; -scutellum and postscutellum with very large 

 punctures ; enclosure of metathorax very distinct, very strongly longi- 



