BEES OP THE FAMILY ANDRENIDAE— TIMBERLAKE 399 



those on dorsal margin fully as long as width of tibia. Facial 

 foveae chocolate brown, or varying to reddish ochreous, when 

 viewed from above, sometimes appearing entirely black in frontal 

 view, moderately narrow, ending very bluntly at level of anten- 

 nae, and somewhat narrowed and ill-defined above, where they 

 cover about half the space between eye and lateral ocellus. Process 

 of labrum with the sides very oblique and the apex rather nar- 

 row, rounded, or subtruncate. Head and thorax dull, without evi- 

 dent punctures. Clypeus almost opaque, impunctate, slightly 

 roughened at apex. Frons substriate. Thorax minutely tessellate, 

 subopaque in some views, more shiny in others. Basal area large, 

 triangular, finely tessellate, the tessellation slightly coarser than 

 that on remainder of dorsal surface of propodeum. Abdomen 

 minutely tessellate, dullish, impunctate. Stigma moderately broad. 

 First abscissa of radius a little less than half as long as the 

 second. Second submarginal cell subquadrate, half as long as the 

 third, and receiving the recurrent nervure at one-third of the 

 length from the apex. Middle and hind basitarsi moderately nar- 

 row. Length 8 mm. ; anterior wing 6 mm. 



Male. — Resembling the female in many characters, but differ- 

 ing as follows : Clypeus yellow, except around the margins, with 

 two black dots on disk, a little shiny on middle of disk, and 

 rather obscurely and closely punctured on the yellow part. Proc- 

 ess of labrum broad, only slightly elevated and truncato-emargi- 

 nate at apex. Frons granular-tessellate, opaque, and not at all 

 striate. Antennae longer than in female, the flagellum dark be- 

 neath, the joints of flagellum, including the first, about one and 

 one-half longer than thick, and the apical one still longer. Thorax 

 more opaque than in female. Pubescence whiter and a little longer 

 than in female, and rather abundant on cheeks and pleura. A lit- 

 tle black hair present on sides of face and behind summit of 

 eyes. The parameres of stipites broadly and semiovally dilated 

 beyond the constricted base, the dilated part being almost straight 

 on outer margin and evenly rounded within. Basal fused part of 

 sagittae large, triangular, depressed and gently convex above, 

 then rapidly attenuating toward apex, with the two component 

 parts thin, opposed, and ending in an acute, slightly upturned 

 point, which projects a little beyond apex of the stipital para- 

 meres. Length 7.5 mm.; anterior wing about 6 mm. 



Types.— U.S.^M. No. 59281. Holotype (female) and 11 para- 

 types (female) from Stanford University, Calif., 8, including 

 holotype, taken on March 26, 3 on March 21, and 1 on April 27, 

 1915 (Harold Morrison) ; allotype (male), Corte Madero Creek, 

 Stanford University, April 4, 1915 (Morrison) ; 2 paratypes 



