THE CANADIAN ENTOMOLOGIST. 371 



Andrena Milwaukeensis berberidis, n. subsp. 



$. — Smaller; hairs of metathorax all black; light hair on first two 

 abdominal segments less conspicuous ; hair of thorax above darker and 

 redder; facial fovese much narrower; hardly one third of the breadth from 

 eye to middle line (in Miiwaukeensis about half the breadth ; clypeus 

 more shining and closely punctured, without a median ridge). 



Hab. — Boulder, Colorado, flying near Berberis repens^ March 30, 

 1905 (W. P. Cockerell). Also collected at Boulder by Mr. G. Weston. 

 Mr. Viereck is disposed to regard this as a distinct species. 



A?idrena griseonigra, n. sp. 



(^.—Length about 10 mm.; black, the head and thorax with 

 abundant very long hair, black except on the dorsum of thorax, where it. 

 is dull white ; cheeks not toothed ; facial quadrangle very much broader 

 than long ; antennae black, third joint conspicuously longer than fourth ; 

 flagellum stout; clypeus shining strongly and very closely punctured, 

 without an impunctate line or ridge ; process of labrum broad, faintly 

 depressed in the middle, but not notched ; mesothorax dull ; area of 

 metathorax coarsely but irregularly ridged, not bounded by a rim ; 

 tegulse black ; nervures and stigma piceous ; legs with black hair, more 

 or less pallid on outer side of tibi?e and hind tarsi; abdomen shining, 

 with minute shallow punctures and black hair, that at apex becoming 

 gray. 



Hab. — Los Angeles, Calif. (Davidson). Very close to A. nigrihirta 

 (Ashm.), but larger, with dark spurs, dark stigma, etc. 



Andretia perimelas., n. sp. 



9. — Length 16 J/2 mm.; black, robust, with black pubescence, except 

 that on thorax above, and a little on the vertex, which is a rather bright 

 ochreous ; wings strongly fuliginous, stigma and nervures ferruginous, the 

 latter partly fuscous ; process of labrum broadly rounded ; clypeus very 

 densely punctured, with an incomplete median smooth line ; area of 

 metathora.x large, triangular, with a dull, minutely granular surface; 

 abdomen distinctly but minutely punctured. 



Hab. — Los AngeleS, Calif. (Davidson). This is a large, brightly- 

 coloured offshoot from the northern series of A. phivialis and its allies. 



