806 THE ENTOMOLOGIST. 



broad, strongly and closely punctured, bright ferruginous ; base and 

 part of sides of first segment, and spot on each side of second, black; 

 third and following segments suffused with black dorsally and ventrally, 

 the apex quite dark. The second to fourth segments have dense 

 creamy-white apical hair-bands, that on the second being slightly 

 interrupted in the middle ; fifth segment and apex covered with 

 glittering very pale orange hair. 



Hab. Pasco, Washington State, May 25th, 1896 (T.Kincaid). 



A. pascoensis differs from A. argemonis by the broader abdo- 

 men with less parallel sides, the broader face, the greyish white 

 (instead of fulvous) pubescence, the pale nervures, &c. From 

 A.fastuosa it differs by having more red on the abdomen and 

 legs, and the colour of the pubescence. 



(2.) Andrena trevoris, n. sp. 



(? . Length about 9 mm. ; black with thin greyish white pube- 

 scence ; clypeus yellow with two black spots ; the four hindmost tarsi 

 pale ferruginous. This closely resembles A. bipunctata, differing as 

 follows : — Size larger ; clypeus higher and less produced at sides, 

 chrome yellow instead of lemon yellow ; flagellum dark, scarcely 

 brownish beneath ; area between eyes and ocelli finely longitudinally 

 striate ; vertex shiny and more distinctly punctured ; abdomen shiny, 

 with small and sparse but distinct punctures ; four hind tarsi light 

 ferruginous ; abdomen rather more hairy ; nervures and stigma dark 

 reddish brown ; stigma smaller relatively to the size of the insect ; 

 third submarginal cell longer. 



Hah. Olympia, Washington State, June 12th, 1895 (T. 

 Kincaid). 



(3.) Andrena apacheorum, n. sp. 



? . Length 10 mm. ; black, with rather thin but tolerably long 

 cream-coloured pubescence. Abduiumal segments 1 to 4. ivith tldn apical 

 hands of hiiKj hair, nut internq)ted ; fifth segment and apex with fiiscuus 

 hair. Process of labrum broad and truncate ; clypeus strongly punc- 

 tured, with an ill-defined impunctate line ; facial quadrangle about as 

 broad as long; area between eyes and ocelli minutely lineolate or 

 striatulate; vertex dull with sparse shallow punctures; antennae dark, 

 slightly ferruginous beneath towards tip ; mesothorax and scutellum 

 dull, minutely tessellate, practically impunctate ; enclosure of meta- 

 thorax ill-defined, minutely roughened, the areas on each side of it dis- 

 tinctly punctured ; abdomen minutely tessellate, impunctate ; tegvil« 

 black ; wings dusky hyaline, nervures piceous, stigma light brown 

 with a dark margin ; first submarginal cell hardly as long as second 

 and third together ; legs black with pale pubescence, that of the tarsi 

 fuscous. 



Hah. At flowers of Bigelovia graveolens, Tularosa Creek (near 

 Blazer's Mill), New Mexico, August 23rd, 1897 (E. 0. Wooton). 



A. apacheorum is closely related to A. fimhriata, but the 

 pubescence is not so yellow, that on the four hindmost tibiae is 



