A ORTH AMRRJCAX BEES 
9 
1 906J 
Andrcna rict/ur, Smilli. 
A specimen from Philatlelpliia, Pa. {I'icreck)^ of the species recognized as 
ricina in .\merica, agreed witli Smith’s type. 
Andrena nivaHs, Smitli. 
Milwaukee, \\'is., specimen, sent as niva/is V’ by Mr. Vieieck, ])roved to 
be Smith’s species. In the type the longitudinal ridge on the dypeus was more 
prominent than in the Wisconsin specimen. 
Andrcna carulea, Smith. 
( 'ompared with Ptilandrena crypta, Viereck, this was found to be very close- 
ly allied ; they have just the same color and sculpture, and the same reddish, 
narrow, short facial fovea. A. cicnilea is larger, and has the scopa of hind tibire 
dark brownish-grey, a good deal of long, erect, black hair on face, and some 
black hair at sides of mesothorax. 
Andrena nubecula. Smith. 
Compared with a .Milwaukee specimen, and found the same ; the species is 
well known. I’he type has lighter tegula; than the Wisconsin example. 
Andrena Jimbriafa, .Smith. 
Expanse of wings 20 mm. .\ specimen sent by Mr. Vierick is correctly 
named ; the type is rather smaller, and has the first recurrent nervure joining 
second submarginal cell nearer its end. A. fmbriala is a homonym, and Dalla 
'I'orre changed it to americana : but Mr. Viereck finds that it is /lir/icinefa, Pro- 
vancher, and this name has priority. 
Andrena f ulvipennis. Smith. 
1 could not find a specimen of this in the collection. 
.-indrena pavochpeafa, Smith. 
$ . 'I'his is generally understood to be bipunciata, ( 'resson, and the type 
runs to that species in Robertson’s tables. Compared with a specimen of bipitnc- 
taia, the type oi flavochpeata differs by being a little smaller, with the flagelluni 
light reddish beneath except at base. The clypeus is a sort of pale orange, 
instead of a clear lemon yellow, but this may be due to cyanide. The tarsi are 
decidedly reddish. 
